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hdf5/src/H5Tconv.c
Quincey Koziol d5130bb573 Updated configure & CMake compiler flags for GCC 8.x, along with corresponding 
changes to warnhist script (and some extra improvements for condensing C++
and Java warnings), and fixed a bunch of warnings.
2019-06-28 09:10:43 -05:00

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Module Info: Datatype conversions for the H5T interface.
*/
/****************/
/* Module Setup */
/****************/
#include "H5Tmodule.h" /* This source code file is part of the H5T module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5CXprivate.h" /* API Contexts */
#include "H5Dprivate.h" /* Datasets */
#include "H5Eprivate.h" /* Error handling */
#include "H5FLprivate.h" /* Free Lists */
#include "H5HGprivate.h" /* Global Heaps */
#include "H5Iprivate.h" /* IDs */
#include "H5MMprivate.h" /* Memory management */
#include "H5Pprivate.h" /* Property lists */
#include "H5Tpkg.h" /* Datatypes */
/****************/
/* Local Macros */
/****************/
/*
* These macros are for the bodies of functions that convert buffers of one
* atomic type to another using hardware.
*
* They all start with `H5T_CONV_' and end with two letters that represent the
* source and destination types, respectively. The letters `s' and `S' refer to
* signed integers while the letters `u' and `U' refer to unsigned integers, and
* the letters `f' and `F' refer to floating-point values.
*
* The letter which is capitalized indicates that the corresponding type
* (source or destination) is at least as large as the other type.
*
* Certain conversions may experience overflow conditions which arise when the
* source value has a magnitude that cannot be represented by the destination
* type.
*
* Suffix Description
* ------ -----------
* sS: Signed integers to signed integers where the destination is
* at least as wide as the source. This case cannot generate
* overflows.
*
* sU: Signed integers to unsigned integers where the destination is
* at least as wide as the source. This case experiences
* overflows when the source value is negative.
*
* uS: Unsigned integers to signed integers where the destination is
* at least as wide as the source. This case can experience
* overflows when the source and destination are the same size.
*
* uU: Unsigned integers to unsigned integers where the destination
* is at least as wide as the source. Overflows are not
* possible in this case.
*
* Ss: Signed integers to signed integers where the source is at
* least as large as the destination. Overflows can occur when
* the destination is narrower than the source.
*
* Su: Signed integers to unsigned integers where the source is at
* least as large as the destination. Overflows occur when the
* source value is negative and can also occur if the
* destination is narrower than the source.
*
* Us: Unsigned integers to signed integers where the source is at
* least as large as the destination. Overflows can occur for
* all sizes.
*
* Uu: Unsigned integers to unsigned integers where the source is at
* least as large as the destination. Overflows can occur if the
* destination is narrower than the source.
*
* su: Conversion from signed integers to unsigned integers where
* the source and destination are the same size. Overflow occurs
* when the source value is negative.
*
* us: Conversion from unsigned integers to signed integers where
* the source and destination are the same size. Overflow
* occurs when the source magnitude is too large for the
* destination.
*
* fF: Floating-point values to floating-point values where the
* destination is at least as wide as the source. This case
* cannot generate overflows.
*
* Ff: Floating-point values to floating-point values the source is at
* least as large as the destination. Overflows can occur when
* the destination is narrower than the source.
*
* xF: Integers to float-point(float or double) values where the destination
* is at least as wide as the source. This case cannot generate
* overflows.
*
* Fx: Float-point(float or double) values to integer where the source is
* at least as wide as the destination. Overflow can occur
* when the source magnitude is too large for the destination.
*
* The macros take a subset of these arguments in the order listed here:
*
* CDATA: A pointer to the H5T_cdata_t structure that was passed to the
* conversion function.
*
* STYPE: The hid_t value for the source datatype.
*
* DTYPE: The hid_t value for the destination datatype.
*
* BUF: A pointer to the conversion buffer.
*
* NELMTS: The number of values to be converted.
*
* ST: The C name for source datatype (e.g., int)
*
* DT: The C name for the destination datatype (e.g., signed char)
*
* D_MIN: The minimum possible destination value. For unsigned
* destination types this should be zero. For signed
* destination types it's a negative value with a magnitude that
* is usually one greater than D_MAX. Source values which are
* smaller than D_MIN generate overflows.
*
* D_MAX: The maximum possible destination value. Source values which
* are larger than D_MAX generate overflows.
*
* The macros are implemented with a generic programming technique, similar
* to templates in C++. The macro which defines the "core" part of the
* conversion (which actually moves the data from the source to the destination)
* is invoked inside the H5T_CONV "template" macro by "gluing" it together,
* which allows the core conversion macro to be invoked as necessary.
*
* "Core" macros come in two flavors: one which calls the exception handling
* routine and one which doesn't (the "_NOEX" variant). The presence of the
* exception handling routine is detected before the loop over the values and
* the appropriate core routine loop is executed.
*
* The generic "core" macros are: (others are specific to particular conversion)
*
* Suffix Description
* ------ -----------
* xX: Generic Conversion where the destination is at least as
* wide as the source. This case cannot generate overflows.
*
* Xx: Generic signed conversion where the source is at least as large
* as the destination. Overflows can occur when the destination is
* narrower than the source.
*
* Ux: Generic conversion for the `Us', `Uu' & `us' cases
* Overflow occurs when the source magnitude is too large for the
* destination.
*
*/
#define H5T_CONV_xX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_xX_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
*(D) = (DT)(*(S)); \
}
/* Added a condition branch(else if (*(S) == (DT)(D_MAX))) which seems redundant.
* It handles a special situation when the source is "float" and assigned the value
* of "INT_MAX". A compiler may do roundup making this value "INT_MAX+1". However,
* when do comparison "if (*(S) > (DT)(D_MAX))", the compiler may consider them
* equal. In this case, do not return exception but make sure the maximum is assigned
* to the destination. SLU - 2005/06/29
*/
#define H5T_CONV_Xx_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if (*(S) > (ST)(D_MAX)) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (DT)(D_MAX); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else if (*(S) < (ST)(D_MIN)) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (DT)(D_MIN); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_Xx_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if (*(S) > (ST)(D_MAX)) { \
*(D) = (DT)(D_MAX); \
} else if (*(S) < (ST)(D_MIN)) { \
*(D) = (DT)(D_MIN); \
} else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_Ux_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if (*(S) > (ST)(D_MAX)) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (DT)(D_MAX); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_Ux_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if (*(S) > (ST)(D_MAX)) { \
*(D) = (DT)(D_MAX); \
} else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_sS(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)<=sizeof(DT)); \
H5T_CONV(H5T_CONV_xX, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_CONV_sU_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if (*(S) < 0) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = 0; \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_sU_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if(*(S) < 0) \
*(D) = 0; \
else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_sU(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)<=sizeof(DT)); \
H5T_CONV(H5T_CONV_sU, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
/* Define to 1 if overflow is possible during conversion, 0 otherwise
* Because destination is at least as wide as the source, this should only
* occur between types of equal size */
#define H5T_CONV_uS_UCHAR_SHORT 0
#define H5T_CONV_uS_UCHAR_INT 0
#define H5T_CONV_uS_UCHAR_LONG 0
#define H5T_CONV_uS_UCHAR_LLONG 0
#if H5_SIZEOF_SHORT == H5_SIZEOF_INT
#define H5T_CONV_uS_USHORT_INT 1
#else
#define H5T_CONV_uS_USHORT_INT 0
#endif
#define H5T_CONV_uS_USHORT_LONG 0
#define H5T_CONV_uS_USHORT_LLONG 0
#if H5_SIZEOF_INT == H5_SIZEOF_LONG
#define H5T_CONV_uS_UINT_LONG 1
#else
#define H5T_CONV_uS_UINT_LONG 0
#endif
#define H5T_CONV_uS_UINT_LLONG 0
#if H5_SIZEOF_LONG == H5_SIZEOF_LONG_LONG
#define H5T_CONV_uS_ULONG_LLONG 1
#else
#define H5T_CONV_uS_ULONG_LLONG 0
#endif
/* Note. If an argument is stringified or concatenated, the prescan does not
* occur. To expand the macro, then stringify or concatenate its expansion,
* one macro must call another macro that does the stringification or
* concatenation. */
#define H5T_CONV_uS_EVAL_TYPES(STYPE, DTYPE) \
H5_GLUE4(H5T_CONV_uS_, STYPE, _, DTYPE)
/* Called if overflow is possible */
#define H5T_CONV_uS_CORE_1(S, D, ST, DT, D_MIN, D_MAX) \
if (*(S) > (DT)(D_MAX)) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI,\
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler */ \
*(D) = (DT)(D_MAX); \
else if (except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, \
"can't handle conversion exception") \
/* if (except_ret==H5T_CONV_HANDLED): Fall through, user handled it */\
} else \
*(D) = (DT)(*(S));
/* Called if no overflow is possible */
#define H5T_CONV_uS_CORE_0(S, D, ST, DT, D_MIN, D_MAX) \
*(D) = (DT)(*(S));
#define H5T_CONV_uS_CORE_I(over, S, D, ST, DT, D_MIN, D_MAX) \
H5_GLUE(H5T_CONV_uS_CORE_, over)(S, D, ST, DT, D_MIN, D_MAX)
#define H5T_CONV_uS_CORE(STYPE, DTYPE, S, D, ST, DT, D_MIN, D_MAX) { \
H5T_CONV_uS_CORE_I(H5T_CONV_uS_EVAL_TYPES(STYPE, DTYPE), \
S, D, ST, DT, D_MIN, D_MAX) \
}
/* Called if overflow is possible */
#define H5T_CONV_uS_NOEX_CORE_1(S, D, ST, DT, D_MIN, D_MAX) \
if (*(S) > (DT)(D_MAX)) \
*(D) = (D_MAX); \
else \
*(D) = (DT)(*(S));
/* Called if no overflow is possible */
#define H5T_CONV_uS_NOEX_CORE_0(S, D, ST, DT, D_MIN, D_MAX) \
*(D) = (DT)(*(S));
#define H5T_CONV_uS_NOEX_CORE_I(over, S, D, ST, DT, D_MIN, D_MAX) \
H5_GLUE(H5T_CONV_uS_NOEX_CORE_, over)(S, D, ST, DT, D_MIN, D_MAX)
#define H5T_CONV_uS_NOEX_CORE(STYPE, DTYPE, S, D, ST, DT, D_MIN, D_MAX) { \
H5T_CONV_uS_NOEX_CORE_I(H5T_CONV_uS_EVAL_TYPES(STYPE, DTYPE), \
S, D, ST, DT, D_MIN, D_MAX) \
}
#define H5T_CONV_uS(STYPE, DTYPE, ST, DT, D_MIN, D_MAX) { \
HDcompile_assert(sizeof(ST) <= sizeof(DT)); \
H5T_CONV(H5T_CONV_uS, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_CONV_uU(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)<=sizeof(DT)); \
H5T_CONV(H5T_CONV_xX, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_CONV_Ss(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)>=sizeof(DT)); \
H5T_CONV(H5T_CONV_Xx, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_CONV_Su_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if(*(S) < 0) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = 0; \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else if (sizeof(ST)>sizeof(DT) && *(S) > (ST)(D_MAX)) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (DT)(D_MAX); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_Su_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if(*(S) < 0) \
*(D) = 0; \
else if (sizeof(ST)>sizeof(DT) && *(S) > (ST)(D_MAX)) \
*(D) = (DT)(D_MAX); \
else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_Su(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)>=sizeof(DT)); \
H5T_CONV(H5T_CONV_Su, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_CONV_Us(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)>=sizeof(DT)); \
H5T_CONV(H5T_CONV_Ux, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_CONV_Uu(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)>=sizeof(DT)); \
H5T_CONV(H5T_CONV_Ux, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_CONV_su_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
/* Assumes memory format of unsigned & signed integers is same */ \
if(*(S) < 0) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = 0; \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_su_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
/* Assumes memory format of unsigned & signed integers is same */ \
if(*(S) < 0) \
*(D) = 0; \
else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_su(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)==sizeof(DT)); \
H5T_CONV(H5T_CONV_su, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_CONV_us_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
/* Assumes memory format of unsigned & signed integers is same */ \
if (*(S) > (ST)(D_MAX)) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (DT)(D_MAX); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_us_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
/* Assumes memory format of unsigned & signed integers is same */ \
if(*(S) > (ST)(D_MAX)) \
*(D) = (DT)(D_MAX); \
else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_us(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)==sizeof(DT)); \
H5T_CONV(H5T_CONV_us, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_CONV_fF(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)<=sizeof(DT)); \
H5T_CONV(H5T_CONV_xX, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
/* Same as H5T_CONV_Xx_CORE, except that instead of using D_MAX and D_MIN
* when an overflow occurs, use the 'float' infinity values.
*/
#define H5T_CONV_Ff_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if(*(S) > (ST)(D_MAX)) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (H5T_NATIVE_FLOAT_POS_INF_g); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else if (*(S) < (ST)(D_MIN)) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (H5T_NATIVE_FLOAT_NEG_INF_g); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_Ff_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if(*(S) > (ST)(D_MAX)) \
*(D) = (H5T_NATIVE_FLOAT_POS_INF_g); \
else if (*(S) < (ST)(D_MIN)) \
*(D) = (H5T_NATIVE_FLOAT_NEG_INF_g); \
else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_Ff(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
HDcompile_assert(sizeof(ST)>=sizeof(DT)); \
H5T_CONV(H5T_CONV_Ff, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, N) \
}
#define H5T_HI_LO_BIT_SET(TYP, V, LO, HI) { \
unsigned count; \
unsigned char p; \
unsigned u; \
\
count = 0; \
for(u = 0; u < sizeof(TYP); u++) { \
count = (((unsigned)sizeof(TYP) - 1) - u) * 8; \
p = (unsigned char)((V) >> count); \
if(p > 0) { \
if(p & 0x80) \
count += 7; \
else if(p & 0x40) \
count += 6; \
else if(p & 0x20) \
count += 5; \
else if(p & 0x10) \
count += 4; \
else if(p & 0x08) \
count += 3; \
else if(p & 0x04) \
count += 2; \
else if(p & 0x02) \
count += 1; \
break; \
} /* end if */ \
} /* end for */ \
\
HI = count; \
\
count = 0; \
for(u = 0; u < sizeof(TYP); u++) { \
p = (unsigned char)((V) >> (u * 8)); \
if(p > 0) { \
count = u * 8; \
\
if(p & 0x01) \
; \
else if(p & 0x02) \
count += 1; \
else if(p & 0x04) \
count += 2; \
else if(p & 0x08) \
count += 3; \
else if(p & 0x10) \
count += 4; \
else if(p & 0x20) \
count += 5; \
else if(p & 0x40) \
count += 6; \
else if(p & 0x80) \
count += 7; \
break; \
} /* end if */ \
} /* end for */ \
\
LO = count; \
}
#define H5T_CONV_xF_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if (sprec > dprec) { \
unsigned low_bit_pos, high_bit_pos; \
\
/* Detect high & low bits set in source */ \
H5T_HI_LO_BIT_SET(ST, *(S), low_bit_pos, high_bit_pos) \
\
/* Check for more bits of precision in src than available in dst */ \
if((high_bit_pos - low_bit_pos) >= dprec) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_PRECISION, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (DT)(*(S)); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} \
else \
*(D) = (DT)(*(S)); \
} \
else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_xF_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_xF(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
H5T_CONV(H5T_CONV_xF, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, Y) \
}
/* Quincey added the condition branch (else if (*(S) != (ST)((DT)(*(S))))).
* It handles a special situation when the source is "float" and assigned the value
* of "INT_MAX". Compilers do roundup making this value "INT_MAX+1". This branch
* is to check that situation and return exception for some compilers, mainly GCC.
* The branch if (*(S) > (DT)(D_MAX) || (sprec < dprec && *(S) ==
* (ST)(D_MAX))) is for some compilers like Sun, HP, IBM, and SGI where under
* the same situation the "int" doesn't overflow. SLU - 2005/9/12
*/
#define H5T_CONV_Fx_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if(*(S) > (ST)(D_MAX) || (sprec < dprec && *(S) == (ST)(D_MAX))) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (DT)(D_MAX); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else if (*(S) < (ST)(D_MIN)) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (DT)(D_MIN); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} else if (*(S) != (ST)((DT)(*(S)))) { \
H5T_conv_ret_t except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_TRUNCATE, \
src_id, dst_id, S, D, cb_struct.user_data); \
if(except_ret == H5T_CONV_UNHANDLED) \
/* Let compiler convert if case is ignored by user handler*/ \
*(D) = (DT)(*(S)); \
else if(except_ret == H5T_CONV_ABORT) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception") \
/* if(except_ret==H5T_CONV_HANDLED): Fall through, user handled it */ \
} \
else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_Fx_NOEX_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
if(*(S) > (ST)(D_MAX)) \
*(D) = (DT)(D_MAX); \
else if(*(S) < (ST)(D_MIN)) \
*(D) = (DT)(D_MIN); \
else \
*(D) = (DT)(*(S)); \
}
#define H5T_CONV_Fx(STYPE,DTYPE,ST,DT,D_MIN,D_MAX) { \
H5T_CONV(H5T_CONV_Fx, STYPE, DTYPE, ST, DT, D_MIN, D_MAX, Y) \
}
/* Since all "no exception" cores do the same thing (assign the value in the
* source location to the destination location, using casting), use one "core"
* to do them all.
*/
#ifndef H5_WANT_DCONV_EXCEPTION
#define H5T_CONV_NO_EXCEPT_CORE(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) { \
*(D) = (DT)(*(S)); \
}
#endif /* H5_WANT_DCONV_EXCEPTION */
/* The main part of every integer hardware conversion macro */
#define H5T_CONV(GUTS,STYPE,DTYPE,ST,DT,D_MIN,D_MAX,PREC) \
{ \
herr_t ret_value=SUCCEED; /* Return value */ \
\
FUNC_ENTER_PACKAGE \
\
{ \
size_t elmtno; /*element number */ \
H5T_CONV_DECL_PREC(PREC) /*declare precision variables, or not */ \
void *src_buf; /*'raw' source buffer */ \
void *dst_buf; /*'raw' destination buffer */ \
ST *src, *s; /*source buffer */ \
DT *dst, *d; /*destination buffer */ \
H5T_t *st, *dt; /*datatype descriptors */ \
ST src_aligned; /*source aligned type */ \
DT dst_aligned; /*destination aligned type */ \
hbool_t s_mv, d_mv; /*move data to align it? */ \
ssize_t s_stride, d_stride; /*src and dst strides */ \
size_t safe; /*how many elements are safe to process in each pass */ \
H5T_conv_cb_t cb_struct; /*conversion callback structure */ \
\
switch (cdata->command) { \
case H5T_CONV_INIT: \
/* Sanity check and initialize statistics */ \
cdata->need_bkg = H5T_BKG_NO; \
if (NULL==(st=(H5T_t*)H5I_object(src_id)) || NULL==(dt=(H5T_t*)H5I_object(dst_id))) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, \
"unable to dereference datatype object ID") \
if (st->shared->size!=sizeof(ST) || dt->shared->size!=sizeof(DT)) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, \
"disagreement about datatype size") \
CI_ALLOC_PRIV \
break; \
\
case H5T_CONV_FREE: \
/* Print and free statistics */ \
CI_PRINT_STATS(STYPE,DTYPE); \
CI_FREE_PRIV \
break; \
\
case H5T_CONV_CONV: \
/* Initialize source & destination strides */ \
if (buf_stride) { \
HDassert(buf_stride >= sizeof(ST)); \
HDassert(buf_stride >= sizeof(DT)); \
s_stride = d_stride = (ssize_t)buf_stride; \
} else { \
s_stride = sizeof(ST); \
d_stride = sizeof(DT); \
} \
\
/* Is alignment required for source or dest? */ \
s_mv = H5T_NATIVE_##STYPE##_ALIGN_g>1 && \
((size_t)buf%H5T_NATIVE_##STYPE##_ALIGN_g || \
/* Cray */ ((size_t)((ST*)buf)!=(size_t)buf) || \
(size_t)s_stride%H5T_NATIVE_##STYPE##_ALIGN_g); \
d_mv = H5T_NATIVE_##DTYPE##_ALIGN_g>1 && \
((size_t)buf%H5T_NATIVE_##DTYPE##_ALIGN_g || \
/* Cray */ ((size_t)((DT*)buf)!=(size_t)buf) || \
(size_t)d_stride%H5T_NATIVE_##DTYPE##_ALIGN_g); \
CI_INC_SRC(s_mv) \
CI_INC_DST(d_mv) \
\
/* Get conversion exception callback property */ \
if(H5CX_get_dt_conv_cb(&cb_struct) < 0) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get conversion exception callback") \
\
/* Get source and destination datatypes */ \
if(NULL == (st = (H5T_t *)H5I_object(src_id)) || NULL == (dt = (H5T_t *)H5I_object(dst_id))) \
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to dereference datatype object ID") \
\
H5T_CONV_SET_PREC(PREC) /*init precision variables, or not */ \
\
/* The outer loop of the type conversion macro, controlling which */ \
/* direction the buffer is walked */ \
while (nelmts>0) { \
/* Check if we need to go backwards through the buffer */ \
if(d_stride>s_stride) { \
/* Compute the number of "safe" destination elements at */ \
/* the end of the buffer (Those which don't overlap with */ \
/* any source elements at the beginning of the buffer) */ \
safe = nelmts - (((nelmts * (size_t)s_stride) + (size_t)(d_stride - 1)) / (size_t)d_stride); \
\
/* If we're down to the last few elements, just wrap up */ \
/* with a "real" reverse copy */ \
if(safe<2) { \
src = (ST *)(src_buf = (void *)((uint8_t *)buf + (nelmts - 1) * (size_t)s_stride)); \
dst = (DT *)(dst_buf = (void *)((uint8_t *)buf + (nelmts - 1) * (size_t)d_stride)); \
s_stride = -s_stride; \
d_stride = -d_stride; \
\
safe=nelmts; \
} /* end if */ \
else { \
src = (ST *)(src_buf = (void *)((uint8_t *)buf + (nelmts - safe) * (size_t)s_stride)); \
dst = (DT *)(dst_buf = (void *)((uint8_t *)buf + (nelmts - safe) * (size_t)d_stride)); \
} /* end else */ \
} /* end if */ \
else { \
/* Single forward pass over all data */ \
src = (ST *)(src_buf = buf); \
dst = (DT *)(dst_buf = buf); \
safe=nelmts; \
} /* end else */ \
\
/* Perform loop over elements to convert */ \
if (s_mv && d_mv) { \
/* Alignment is required for both source and dest */ \
s = &src_aligned; \
H5T_CONV_LOOP_OUTER(PRE_SALIGN,PRE_DALIGN,POST_SALIGN,POST_DALIGN,GUTS,STYPE,DTYPE,s,d,ST,DT,D_MIN,D_MAX) \
} else if(s_mv) { \
/* Alignment is required only for source */ \
s = &src_aligned; \
H5T_CONV_LOOP_OUTER(PRE_SALIGN,PRE_DNOALIGN,POST_SALIGN,POST_DNOALIGN,GUTS,STYPE,DTYPE,s,dst,ST,DT,D_MIN,D_MAX) \
} else if(d_mv) { \
/* Alignment is required only for destination */ \
H5T_CONV_LOOP_OUTER(PRE_SNOALIGN,PRE_DALIGN,POST_SNOALIGN,POST_DALIGN,GUTS,STYPE,DTYPE,src,d,ST,DT,D_MIN,D_MAX) \
} else { \
/* Alignment is not required for both source and destination */ \
H5T_CONV_LOOP_OUTER(PRE_SNOALIGN,PRE_DNOALIGN,POST_SNOALIGN,POST_DNOALIGN,GUTS,STYPE,DTYPE,src,dst,ST,DT,D_MIN,D_MAX) \
} \
\
/* Decrement number of elements left to convert */ \
nelmts-=safe; \
} /* end while */ \
break; \
\
default: \
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, \
"unknown conversion command"); \
} \
} \
\
done: \
FUNC_LEAVE_NOAPI(ret_value) \
}
/* Declare the source & destination precision variables */
#define H5T_CONV_DECL_PREC(PREC) H5_GLUE(H5T_CONV_DECL_PREC_, PREC)
#define H5T_CONV_DECL_PREC_Y \
size_t sprec; /*source precision */ \
size_t dprec; /*destination precision */ \
H5T_class_t tclass; /*datatype's class */
#define H5T_CONV_DECL_PREC_N /*no precision variables */
/* Initialize the source & destination precision variables */
#define H5T_CONV_SET_PREC(PREC) H5_GLUE(H5T_CONV_SET_PREC_, PREC)
#define H5T_CONV_SET_PREC_Y \
/* Get source & destination precisions into a variable */ \
tclass = st->shared->type; \
HDassert(tclass == H5T_INTEGER || tclass == H5T_FLOAT); \
if(tclass == H5T_INTEGER) \
sprec = st->shared->u.atomic.prec; \
else \
sprec = 1 + st->shared->u.atomic.u.f.msize; \
tclass = dt->shared->type; \
HDassert(tclass == H5T_INTEGER || tclass == H5T_FLOAT); \
if(tclass == H5T_INTEGER) \
dprec = dt->shared->u.atomic.prec; \
else \
dprec = 1 + dt->shared->u.atomic.u.f.msize;
#define H5T_CONV_SET_PREC_N /*don't init precision variables */
/* Macro defining action on source data which needs to be aligned (before main action) */
#define H5T_CONV_LOOP_PRE_SALIGN(ST) { \
H5MM_memcpy(&src_aligned, src, sizeof(ST)); \
}
/* Macro defining action on source data which doesn't need to be aligned (before main action) */
#define H5T_CONV_LOOP_PRE_SNOALIGN(ST) { \
}
/* Macro defining action on destination data which needs to be aligned (before main action) */
#define H5T_CONV_LOOP_PRE_DALIGN(DT) { \
d = &dst_aligned; \
}
/* Macro defining action on destination data which doesn't need to be aligned (before main action) */
#define H5T_CONV_LOOP_PRE_DNOALIGN(DT) { \
}
/* Macro defining action on source data which needs to be aligned (after main action) */
#define H5T_CONV_LOOP_POST_SALIGN(ST) { \
}
/* Macro defining action on source data which doesn't need to be aligned (after main action) */
#define H5T_CONV_LOOP_POST_SNOALIGN(ST) { \
}
/* Macro defining action on destination data which needs to be aligned (after main action) */
#define H5T_CONV_LOOP_POST_DALIGN(DT) { \
H5MM_memcpy(dst, &dst_aligned, sizeof(DT)); \
}
/* Macro defining action on destination data which doesn't need to be aligned (after main action) */
#define H5T_CONV_LOOP_POST_DNOALIGN(DT) { \
}
/* The outer wrapper for the type conversion loop, to check for an exception handling routine */
#define H5T_CONV_LOOP_OUTER(PRE_SALIGN_GUTS,PRE_DALIGN_GUTS,POST_SALIGN_GUTS,POST_DALIGN_GUTS,GUTS,STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) \
if(cb_struct.func) { \
H5T_CONV_LOOP(PRE_SALIGN_GUTS,PRE_DALIGN_GUTS,POST_SALIGN_GUTS,POST_DALIGN_GUTS,GUTS,STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) \
} \
else { \
H5T_CONV_LOOP(PRE_SALIGN_GUTS,PRE_DALIGN_GUTS,POST_SALIGN_GUTS,POST_DALIGN_GUTS,H5_GLUE(GUTS,_NOEX),STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) \
}
/* The inner loop of the type conversion macro, actually converting the elements */
#define H5T_CONV_LOOP(PRE_SALIGN_GUTS,PRE_DALIGN_GUTS,POST_SALIGN_GUTS,POST_DALIGN_GUTS,GUTS,STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) \
for (elmtno=0; elmtno<safe; elmtno++) { \
/* Handle source pre-alignment */ \
H5_GLUE(H5T_CONV_LOOP_,PRE_SALIGN_GUTS)(ST) \
\
/* Handle destination pre-alignment */ \
H5_GLUE(H5T_CONV_LOOP_,PRE_DALIGN_GUTS)(DT) \
\
/* ... user-defined stuff here -- the conversion ... */ \
H5T_CONV_LOOP_GUTS(GUTS,STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) \
\
/* Handle source post-alignment */ \
H5_GLUE(H5T_CONV_LOOP_,POST_SALIGN_GUTS)(ST) \
\
/* Handle destination post-alignment */ \
H5_GLUE(H5T_CONV_LOOP_,POST_DALIGN_GUTS)(DT) \
\
/* Advance pointers */ \
src_buf = (void *)((uint8_t *)src_buf + s_stride); \
src = (ST *)src_buf; \
dst_buf = (void *)((uint8_t *)dst_buf + d_stride); \
dst = (DT *)dst_buf; \
}
/* Macro to call the actual "guts" of the type conversion, or call the "no exception" guts */
#ifdef H5_WANT_DCONV_EXCEPTION
#define H5T_CONV_LOOP_GUTS(GUTS,STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) \
/* ... user-defined stuff here -- the conversion ... */ \
H5_GLUE(GUTS,_CORE)(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX)
#else /* H5_WANT_DCONV_EXCEPTION */
#define H5T_CONV_LOOP_GUTS(GUTS,STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX) \
H5_GLUE(H5T_CONV_NO_EXCEPT,_CORE)(STYPE,DTYPE,S,D,ST,DT,D_MIN,D_MAX)
#endif /* H5_WANT_DCONV_EXCEPTION */
#ifdef H5T_DEBUG
/* Print alignment statistics */
# define CI_PRINT_STATS(STYPE,DTYPE) { \
if (H5DEBUG(T) && ((H5T_conv_hw_t *)cdata->priv)->s_aligned) { \
HDfprintf(H5DEBUG(T), \
" %Hu src elements aligned on %lu-byte boundaries\n", \
((H5T_conv_hw_t *)cdata->priv)->s_aligned, \
(unsigned long)H5T_NATIVE_##STYPE##_ALIGN_g); \
} \
if (H5DEBUG(T) && ((H5T_conv_hw_t *)cdata->priv)->d_aligned) { \
HDfprintf(H5DEBUG(T), \
" %Hu dst elements aligned on %lu-byte boundaries\n", \
((H5T_conv_hw_t *)cdata->priv)->d_aligned, \
(unsigned long)H5T_NATIVE_##DTYPE##_ALIGN_g); \
} \
}
/* Allocate private alignment structure for atomic types */
# define CI_ALLOC_PRIV \
if (NULL==(cdata->priv=H5MM_calloc(sizeof(H5T_conv_hw_t)))) { \
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, \
"memory allocation failed"); \
}
/* Free private alignment structure for atomic types */
# define CI_FREE_PRIV \
if(cdata->priv!=NULL) \
cdata->priv = H5MM_xfree(cdata->priv);
/* Increment source alignment counter */
# define CI_INC_SRC(s) if (s) ((H5T_conv_hw_t *)cdata->priv)->s_aligned += nelmts;
/* Increment destination alignment counter */
# define CI_INC_DST(d) if (d) ((H5T_conv_hw_t *)cdata->priv)->d_aligned += nelmts;
#else /* H5T_DEBUG */
# define CI_PRINT_STATS(STYPE,DTYPE) /*void*/
# define CI_ALLOC_PRIV cdata->priv=NULL;
# define CI_FREE_PRIV /* void */
# define CI_INC_SRC(s) /* void */
# define CI_INC_DST(d) /* void */
#endif /* H5T_DEBUG */
/* Swap two elements (I & J) of an array using a temporary variable */
#define H5_SWAP_BYTES(ARRAY,I,J) {uint8_t _tmp; _tmp=ARRAY[I]; ARRAY[I]=ARRAY[J]; ARRAY[J]=_tmp;}
/* Minimum size of variable-length conversion buffer */
#define H5T_VLEN_MIN_CONF_BUF_SIZE 4096
/******************/
/* Local Typedefs */
/******************/
/* Conversion data for H5T__conv_struct() */
typedef struct H5T_conv_struct_t {
int *src2dst; /*mapping from src to dst member num */
hid_t *src_memb_id; /*source member type ID's */
hid_t *dst_memb_id; /*destination member type ID's */
H5T_path_t **memb_path; /*conversion path for each member */
H5T_subset_info_t subset_info; /*info related to compound subsets */
unsigned src_nmembs; /*needed by free function */
} H5T_conv_struct_t;
/* Conversion data for H5T__conv_enum() */
typedef struct H5T_enum_struct_t {
int base; /*lowest `in' value */
unsigned length; /*num elements in arrays */
int *src2dst; /*map from src to dst index */
} H5T_enum_struct_t;
/* Conversion data for the hardware conversion functions */
typedef struct H5T_conv_hw_t {
size_t s_aligned; /*number source elements aligned */
size_t d_aligned; /*number destination elements aligned*/
} H5T_conv_hw_t;
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
static herr_t H5T_reverse_order(uint8_t *rev, uint8_t *s, size_t size, H5T_order_t order);
/*********************/
/* Public Variables */
/*********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* Declare a free list to manage pieces of vlen data */
H5FL_BLK_DEFINE_STATIC(vlen_seq);
/* Declare a free list to manage pieces of array data */
H5FL_BLK_DEFINE_STATIC(array_seq);
/*-------------------------------------------------------------------------
* Function: H5T__conv_noop
*
* Purpose: The no-op conversion. The library knows about this
* conversion without it being registered.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Wednesday, January 14, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_noop(hid_t H5_ATTR_UNUSED src_id, hid_t H5_ATTR_UNUSED dst_id, H5T_cdata_t *cdata,
size_t H5_ATTR_UNUSED nelmts, size_t H5_ATTR_UNUSED buf_stride,
size_t H5_ATTR_UNUSED bkg_stride, void H5_ATTR_UNUSED *buf,
void H5_ATTR_UNUSED *background)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_CONV:
/* Nothing to convert */
break;
case H5T_CONV_FREE:
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_noop() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_order_opt
*
* Purpose: Convert one type to another when byte order is the only
* difference. This is the optimized version of H5T__conv_order()
* for a handful of different sizes.
*
* Note: This is a soft conversion function.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Friday, January 25, 2002
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_order_opt(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride,
size_t H5_ATTR_UNUSED bkg_stride, void *_buf,
void H5_ATTR_UNUSED *background)
{
uint8_t *buf = (uint8_t*)_buf;
H5T_t *src = NULL;
H5T_t *dst = NULL;
size_t i;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
/* Capability query */
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(src->shared->size != dst->shared->size ||
0 != src->shared->u.atomic.offset ||
0 != dst->shared->u.atomic.offset)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion not supported")
if((src->shared->type == H5T_REFERENCE && dst->shared->type != H5T_REFERENCE) ||
(dst->shared->type == H5T_REFERENCE && src->shared->type != H5T_REFERENCE))
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion not supported")
if(src->shared->type != H5T_REFERENCE &&
!((H5T_ORDER_BE == src->shared->u.atomic.order && H5T_ORDER_LE == dst->shared->u.atomic.order) ||
(H5T_ORDER_LE == src->shared->u.atomic.order && H5T_ORDER_BE == dst->shared->u.atomic.order)))
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion not supported")
if(src->shared->size != 1 && src->shared->size != 2 && src->shared->size != 4 &&
src->shared->size != 8 && src->shared->size != 16)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion not supported")
switch(src->shared->type) {
case H5T_INTEGER:
case H5T_BITFIELD:
case H5T_REFERENCE:
/* nothing to check */
break;
case H5T_FLOAT:
if(src->shared->u.atomic.u.f.sign != dst->shared->u.atomic.u.f.sign ||
src->shared->u.atomic.u.f.epos != dst->shared->u.atomic.u.f.epos ||
src->shared->u.atomic.u.f.esize != dst->shared->u.atomic.u.f.esize ||
src->shared->u.atomic.u.f.ebias != dst->shared->u.atomic.u.f.ebias ||
src->shared->u.atomic.u.f.mpos != dst->shared->u.atomic.u.f.mpos ||
src->shared->u.atomic.u.f.msize != dst->shared->u.atomic.u.f.msize ||
src->shared->u.atomic.u.f.norm != dst->shared->u.atomic.u.f.norm ||
src->shared->u.atomic.u.f.pad != dst->shared->u.atomic.u.f.pad)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion not supported")
break;
case H5T_NO_CLASS:
case H5T_TIME:
case H5T_STRING:
case H5T_OPAQUE:
case H5T_COMPOUND:
case H5T_ENUM:
case H5T_VLEN:
case H5T_ARRAY:
case H5T_NCLASSES:
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion not supported")
}
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_CONV:
/* The conversion */
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/* Check for "no op" reference conversion */
if(src->shared->type == H5T_REFERENCE) {
/* Sanity check */
if(dst->shared->type != H5T_REFERENCE)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_REFERENCE datatype")
/* Check if we are on a little-endian machine (the order that
* the addresses in the file must be) and just get out now, there
* is no need to convert the object reference. Yes, this is
* icky and non-portable, but I can't think of a better way to
* support allowing the objno in the H5O_info_t struct and the
* hobj_ref_t type to be compared directly without introducing a
* "native" hobj_ref_t datatype and I think that would break a
* lot of existing programs. -QAK
*/
if(H5T_native_order_g == H5T_ORDER_LE)
break;
} /* end if */
buf_stride = buf_stride ? buf_stride : src->shared->size;
switch(src->shared->size) {
case 1:
/*no-op*/
break;
case 2:
for(/*void*/; nelmts >= 20; nelmts -= 20) {
H5_SWAP_BYTES(buf, 0, 1); /* 0 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 1 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 2 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 3 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 4 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 5 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 6 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 7 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 8 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 9 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 10 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 11 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 12 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 13 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 14 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 15 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 16 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 17 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 18 */
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 1); /* 19 */
buf += buf_stride;
} /* end for */
for(i = 0; i < nelmts; i++, buf += buf_stride)
H5_SWAP_BYTES(buf, 0, 1);
break;
case 4:
for(/*void*/; nelmts >= 20; nelmts -= 20) {
H5_SWAP_BYTES(buf, 0, 3); /* 0 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 1 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 2 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 3 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 4 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 5 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 6 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 7 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 8 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 9 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 10 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 11 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 12 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 13 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 14 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 15 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 16 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 17 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 18 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 3); /* 19 */
H5_SWAP_BYTES(buf, 1, 2);
buf += buf_stride;
} /* end for */
for(i = 0; i < nelmts; i++, buf += buf_stride) {
H5_SWAP_BYTES(buf, 0, 3);
H5_SWAP_BYTES(buf, 1, 2);
} /* end for */
break;
case 8:
for(/*void*/; nelmts >= 10; nelmts -= 10) {
H5_SWAP_BYTES(buf, 0, 7); /* 0 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 7); /* 1 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 7); /* 2 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 7); /* 3 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 7); /* 4 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 7); /* 5 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 7); /* 6 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 7); /* 7 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 7); /* 8 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 7); /* 9 */
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
buf += buf_stride;
} /* end for */
for(i = 0; i < nelmts; i++, buf += buf_stride) {
H5_SWAP_BYTES(buf, 0, 7);
H5_SWAP_BYTES(buf, 1, 6);
H5_SWAP_BYTES(buf, 2, 5);
H5_SWAP_BYTES(buf, 3, 4);
} /* end for */
break;
case 16:
for(/*void*/; nelmts >= 10; nelmts -= 10) {
H5_SWAP_BYTES(buf, 0, 15); /* 0 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 15); /* 1 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 15); /* 2 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 15); /* 3 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 15); /* 4 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 15); /* 5 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 15); /* 6 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 15); /* 7 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 15); /* 8 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
H5_SWAP_BYTES(buf, 0, 15); /* 9 */
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
buf += buf_stride;
} /* end for */
for(i = 0; i < nelmts; i++, buf += buf_stride) {
H5_SWAP_BYTES(buf, 0, 15);
H5_SWAP_BYTES(buf, 1, 14);
H5_SWAP_BYTES(buf, 2, 13);
H5_SWAP_BYTES(buf, 3, 12);
H5_SWAP_BYTES(buf, 4, 11);
H5_SWAP_BYTES(buf, 5, 10);
H5_SWAP_BYTES(buf, 6, 9);
H5_SWAP_BYTES(buf, 7, 8);
} /* end for */
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "invalid conversion size")
} /* end switch */
break;
case H5T_CONV_FREE:
/* Free private data */
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_order_opt() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_order
*
* Purpose: Convert one type to another when byte order is the only
* difference.
*
* Note: This is a soft conversion function.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Tuesday, January 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_order(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *_buf,
void H5_ATTR_UNUSED *background)
{
uint8_t *buf = (uint8_t*)_buf;
H5T_t *src = NULL;
H5T_t *dst = NULL;
size_t i;
size_t j, md;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
/* Capability query */
if(NULL == (src = (H5T_t *)H5I_object(src_id)) ||
NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(src->shared->size != dst->shared->size || 0 != src->shared->u.atomic.offset ||
0 != dst->shared->u.atomic.offset ||
!((H5T_ORDER_BE == src->shared->u.atomic.order &&
H5T_ORDER_LE == dst->shared->u.atomic.order) ||
(H5T_ORDER_LE == src->shared->u.atomic.order &&
H5T_ORDER_BE == dst->shared->u.atomic.order)))
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion not supported")
switch(src->shared->type) {
case H5T_INTEGER:
case H5T_BITFIELD:
/* nothing to check */
break;
case H5T_FLOAT:
if(src->shared->u.atomic.u.f.sign != dst->shared->u.atomic.u.f.sign ||
src->shared->u.atomic.u.f.epos != dst->shared->u.atomic.u.f.epos ||
src->shared->u.atomic.u.f.esize != dst->shared->u.atomic.u.f.esize ||
src->shared->u.atomic.u.f.ebias != dst->shared->u.atomic.u.f.ebias ||
src->shared->u.atomic.u.f.mpos != dst->shared->u.atomic.u.f.mpos ||
src->shared->u.atomic.u.f.msize != dst->shared->u.atomic.u.f.msize ||
src->shared->u.atomic.u.f.norm != dst->shared->u.atomic.u.f.norm ||
src->shared->u.atomic.u.f.pad != dst->shared->u.atomic.u.f.pad) {
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion not supported")
} /* end if */
break;
case H5T_NO_CLASS:
case H5T_TIME:
case H5T_STRING:
case H5T_OPAQUE:
case H5T_COMPOUND:
case H5T_REFERENCE:
case H5T_ENUM:
case H5T_VLEN:
case H5T_ARRAY:
case H5T_NCLASSES:
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion not supported")
} /* end switch */
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_CONV:
/* The conversion */
if(NULL == (src = (H5T_t *)H5I_object(src_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
buf_stride = buf_stride ? buf_stride : src->shared->size;
md = src->shared->size / 2;
for(i = 0; i < nelmts; i++, buf += buf_stride)
for(j = 0; j < md; j++)
H5_SWAP_BYTES(buf, j, src->shared->size - (j + 1));
break;
case H5T_CONV_FREE:
/* Free private data */
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_order() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_b_b
*
* Purpose: Convert from one bitfield to any other bitfield.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Thursday, May 20, 1999
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_b_b(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *_buf,
void H5_ATTR_UNUSED *background)
{
uint8_t *buf = (uint8_t*)_buf;
H5T_t *src = NULL, *dst = NULL; /*source and dest datatypes */
ssize_t direction; /*direction of traversal */
size_t elmtno; /*element number */
size_t olap; /*num overlapping elements */
size_t half_size; /*1/2 of total size for swapping*/
uint8_t *s, *sp, *d, *dp; /*source and dest traversal ptrs*/
uint8_t dbuf[256]; /*temp destination buffer */
size_t msb_pad_offset; /*offset for dest MSB padding */
size_t i;
uint8_t *src_rev=NULL; /*order-reversed source buffer */
H5T_conv_cb_t cb_struct = {NULL, NULL}; /*conversion callback structure */
H5T_conv_ret_t except_ret; /*return of callback function */
hbool_t reverse; /*if reverse the order of destination */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
/* Capability query */
if(NULL == (src = (H5T_t *)H5I_object(src_id)) ||
NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_ORDER_LE != src->shared->u.atomic.order &&
H5T_ORDER_BE != src->shared->u.atomic.order)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order")
if(H5T_ORDER_LE != dst->shared->u.atomic.order &&
H5T_ORDER_BE != dst->shared->u.atomic.order)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order")
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_FREE:
break;
case H5T_CONV_CONV:
/* Get the datatypes */
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/*
* Do we process the values from beginning to end or vice versa? Also,
* how many of the elements have the source and destination areas
* overlapping?
*/
if(src->shared->size == dst->shared->size || buf_stride) {
sp = dp = (uint8_t*)buf;
direction = 1;
olap = nelmts;
} else if(src->shared->size >= dst->shared->size) {
double olap_d = HDceil((double)(dst->shared->size) /
(double)(src->shared->size - dst->shared->size));
olap = (size_t)olap_d;
sp = dp = (uint8_t*)buf;
direction = 1;
} else {
double olap_d = HDceil((double)(src->shared->size) /
(double)(dst->shared->size - src->shared->size));
olap = (size_t)olap_d;
sp = (uint8_t*)buf + (nelmts-1) * src->shared->size;
dp = (uint8_t*)buf + (nelmts-1) * dst->shared->size;
direction = -1;
}
/* Get conversion exception callback property */
if(H5CX_get_dt_conv_cb(&cb_struct) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get conversion exception callback")
/* Allocate space for order-reversed source buffer */
src_rev = (uint8_t *)H5MM_calloc(src->shared->size);
/* The conversion loop */
H5_CHECK_OVERFLOW(buf_stride, size_t, ssize_t);
H5_CHECK_OVERFLOW(src->shared->size, size_t, ssize_t);
H5_CHECK_OVERFLOW(dst->shared->size, size_t, ssize_t);
for(elmtno = 0; elmtno < nelmts; elmtno++) {
/*
* If the source and destination buffers overlap then use a
* temporary buffer for the destination.
*/
if(direction > 0) {
s = sp;
d = elmtno < olap ? dbuf : dp;
} /* end if */
else {
s = sp;
d = (elmtno + olap) >= nelmts ? dbuf : dp;
} /* end else */
#ifndef NDEBUG
/* I don't quite trust the overlap calculations yet --rpm */
if(d == dbuf)
HDassert((dp >= sp && dp < sp + src->shared->size) ||
(sp >= dp && sp < dp + dst->shared->size));
else
HDassert((dp < sp && dp + dst->shared->size<=sp) ||
(sp < dp && sp + src->shared->size<=dp));
#endif
/*
* Put the data in little endian order so our loops aren't so
* complicated. We'll do all the conversion stuff assuming
* little endian and then we'll fix the order at the end.
*/
if(H5T_ORDER_BE == src->shared->u.atomic.order) {
half_size = src->shared->size / 2;
for(i = 0; i < half_size; i++) {
uint8_t tmp = s[src->shared->size - (i + 1)];
s[src->shared->size - (i + 1)] = s[i];
s[i] = tmp;
} /* end for */
} /* end if */
/* Initiate these variables */
except_ret = H5T_CONV_UNHANDLED;
reverse = TRUE;
/*
* Copy the significant part of the value. If the source is larger
* than the destination then invoke the overflow function or copy
* as many bits as possible. Zero extra bits in the destination.
*/
if(src->shared->u.atomic.prec > dst->shared->u.atomic.prec) {
/*overflow*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
H5T_reverse_order(src_rev, s, src->shared->size, src->shared->u.atomic.order); /*reverse order first*/
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id,
src_rev, d, cb_struct.user_data);
} /* end if */
if(except_ret == H5T_CONV_UNHANDLED) {
H5T__bit_copy(d, dst->shared->u.atomic.offset,
s, src->shared->u.atomic.offset, dst->shared->u.atomic.prec);
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED)
/*Don't reverse because user handles it*/
reverse = FALSE;
} else {
H5T__bit_copy(d, dst->shared->u.atomic.offset,
s, src->shared->u.atomic.offset,
src->shared->u.atomic.prec);
H5T__bit_set(d, dst->shared->u.atomic.offset+src->shared->u.atomic.prec,
dst->shared->u.atomic.prec-src->shared->u.atomic.prec, FALSE);
}
/*
* Fill the destination padding areas.
*/
switch(dst->shared->u.atomic.lsb_pad) {
case H5T_PAD_ZERO:
H5T__bit_set(d, (size_t)0, dst->shared->u.atomic.offset, FALSE);
break;
case H5T_PAD_ONE:
H5T__bit_set(d, (size_t)0, dst->shared->u.atomic.offset, TRUE);
break;
case H5T_PAD_ERROR:
case H5T_PAD_BACKGROUND:
case H5T_NPAD:
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported LSB padding")
} /* end switch */
msb_pad_offset = dst->shared->u.atomic.offset + dst->shared->u.atomic.prec;
switch(dst->shared->u.atomic.msb_pad) {
case H5T_PAD_ZERO:
H5T__bit_set(d, msb_pad_offset, 8 * dst->shared->size - msb_pad_offset, FALSE);
break;
case H5T_PAD_ONE:
H5T__bit_set(d, msb_pad_offset, 8 * dst->shared->size - msb_pad_offset, TRUE);
break;
case H5T_PAD_ERROR:
case H5T_PAD_BACKGROUND:
case H5T_NPAD:
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported MSB padding")
} /* end switch */
/*
* Put the destination in the correct byte order. See note at
* beginning of loop.
*/
if(H5T_ORDER_BE == dst->shared->u.atomic.order && reverse) {
half_size = dst->shared->size / 2;
for(i = 0; i < half_size; i++) {
uint8_t tmp = d[dst->shared->size - (i + 1)];
d[dst->shared->size - (i + 1)] = d[i];
d[i] = tmp;
} /* end for */
} /* end if */
/*
* If we had used a temporary buffer for the destination then we
* should copy the value to the true destination buffer.
*/
if(d == dbuf)
H5MM_memcpy(dp, d, dst->shared->size);
if(buf_stride) {
sp += direction * (ssize_t)buf_stride; /* Note that cast is checked with H5_CHECK_OVERFLOW, above */
dp += direction * (ssize_t)buf_stride; /* Note that cast is checked with H5_CHECK_OVERFLOW, above */
} /* end if */
else {
sp += direction * (ssize_t)src->shared->size; /* Note that cast is checked with H5_CHECK_OVERFLOW, above */
dp += direction * (ssize_t)dst->shared->size; /* Note that cast is checked with H5_CHECK_OVERFLOW, above */
} /* end else */
} /* end for */
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
if(src_rev)
H5MM_free(src_rev);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_b_b() */
/*-------------------------------------------------------------------------
* Function: H5T_conv_struct_free
*
* Purpose: Free the private data structure used by the compound
* conversion functions.
*
* Return: The result of H5MM_xfree(priv) (NULL)
*
* Programmer: Neil Fortner
* Wednesday, October 1, 2008
*
*-------------------------------------------------------------------------
*/
static H5T_conv_struct_t *
H5T_conv_struct_free(H5T_conv_struct_t *priv)
{
int *src2dst = priv->src2dst;
hid_t *src_memb_id = priv->src_memb_id,
*dst_memb_id = priv->dst_memb_id;
unsigned i;
FUNC_ENTER_NOAPI_NOINIT_NOERR
for(i = 0; i < priv->src_nmembs; i++)
if(src2dst[i] >= 0) {
int status;
status = H5I_dec_ref(src_memb_id[i]);
HDassert(status >= 0);
status = H5I_dec_ref(dst_memb_id[src2dst[i]]);
HDassert(status >= 0);
} /* end if */
H5MM_xfree(src2dst);
H5MM_xfree(src_memb_id);
H5MM_xfree(dst_memb_id);
H5MM_xfree(priv->memb_path);
FUNC_LEAVE_NOAPI((H5T_conv_struct_t *)H5MM_xfree(priv))
} /* end H5T_conv_struct_free() */
/*-------------------------------------------------------------------------
* Function: H5T_conv_struct_init
*
* Purpose: Initialize the `priv' field of `cdata' with conversion
* information that is relatively constant. If `priv' is
* already initialized then the member conversion functions
* are recalculated.
*
* Priv fields are indexed by source member number or
* destination member number depending on whether the field
* contains information about the source datatype or the
* destination datatype (fields that contains the same
* information for both source and destination are indexed by
* source member number). The src2dst[] priv array maps source
* member numbers to destination member numbers, but if the
* source member doesn't have a corresponding destination member
* then the src2dst[i]=-1.
*
* Special optimization case when the source and destination
* members are a subset of each other, and the order is the same,
* and no conversion is needed. For example:
* struct source { struct destination {
* TYPE1 A; --> TYPE1 A;
* TYPE2 B; --> TYPE2 B;
* TYPE3 C; --> TYPE3 C;
* }; TYPE4 D;
* TYPE5 E;
* };
* or
* struct destination { struct source {
* TYPE1 A; <-- TYPE1 A;
* TYPE2 B; <-- TYPE2 B;
* TYPE3 C; <-- TYPE3 C;
* }; TYPE4 D;
* TYPE5 E;
* };
* The optimization is simply moving data to the appropriate
* places in the buffer.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Monday, January 26, 1998
*
*-------------------------------------------------------------------------
*/
static herr_t
H5T_conv_struct_init(H5T_t *src, H5T_t *dst, H5T_cdata_t *cdata)
{
H5T_conv_struct_t *priv = (H5T_conv_struct_t*)(cdata->priv);
int *src2dst = NULL;
unsigned src_nmembs, dst_nmembs;
unsigned i, j;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
src_nmembs = src->shared->u.compnd.nmembs;
dst_nmembs = dst->shared->u.compnd.nmembs;
if(!priv) {
/*
* Allocate private data structure and arrays.
*/
if(NULL == (priv = (H5T_conv_struct_t *)(cdata->priv=H5MM_calloc(sizeof(H5T_conv_struct_t)))) ||
NULL == (priv->src2dst = (int *)H5MM_malloc(src_nmembs * sizeof(int))) ||
NULL == (priv->src_memb_id = (hid_t *)H5MM_malloc(src_nmembs * sizeof(hid_t))) ||
NULL == (priv->dst_memb_id = (hid_t *)H5MM_malloc(dst_nmembs * sizeof(hid_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
src2dst = priv->src2dst;
priv->src_nmembs = src_nmembs;
/* The flag of special optimization to indicate if source members and destination
* members are a subset of each other. Initialize it to FALSE */
priv->subset_info.subset = H5T_SUBSET_FALSE;
priv->subset_info.copy_size = 0;
/*
* Insure that members are sorted.
*/
H5T__sort_value(src, NULL);
H5T__sort_value(dst, NULL);
/*
* Build a mapping from source member number to destination member
* number. If some source member is not a destination member then that
* mapping element will be negative. Also create atoms for each
* source and destination member datatype so we can look up the
* member datatype conversion functions later.
*/
for(i = 0; i < src_nmembs; i++) {
src2dst[i] = -1;
for(j = 0; j < dst_nmembs; j++) {
if(!HDstrcmp(src->shared->u.compnd.memb[i].name, dst->shared->u.compnd.memb[j].name)) {
H5_CHECKED_ASSIGN(src2dst[i], int, j, unsigned);
break;
} /* end if */
} /* end for */
if(src2dst[i] >= 0) {
hid_t tid;
H5T_t *type;
type = H5T_copy(src->shared->u.compnd.memb[i].type, H5T_COPY_ALL);
tid = H5I_register(H5I_DATATYPE, type, FALSE);
HDassert(tid >= 0);
priv->src_memb_id[i] = tid;
type = H5T_copy(dst->shared->u.compnd.memb[src2dst[i]].type, H5T_COPY_ALL);
tid = H5I_register(H5I_DATATYPE, type, FALSE);
HDassert(tid >= 0);
priv->dst_memb_id[src2dst[i]] = tid;
} /* end if */
} /* end for */
} /* end if */
else {
/* Restore sorted conditions for the datatypes */
/* (Required for the src2dst array to be valid) */
H5T__sort_value(src, NULL);
H5T__sort_value(dst, NULL);
} /* end else */
/*
* (Re)build the cache of member conversion functions and pointers to
* their cdata entries.
*/
src2dst = priv->src2dst;
H5MM_xfree(priv->memb_path);
if(NULL == (priv->memb_path = (H5T_path_t **)H5MM_malloc(src->shared->u.compnd.nmembs * sizeof(H5T_path_t*))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
for(i = 0; i < src_nmembs; i++) {
if(src2dst[i] >= 0) {
H5T_path_t *tpath = H5T_path_find(src->shared->u.compnd.memb[i].type, dst->shared->u.compnd.memb[src2dst[i]].type);
if(NULL == (priv->memb_path[i] = tpath)) {
cdata->priv = H5T_conv_struct_free(priv);
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unable to convert member datatype")
} /* end if */
} /* end if */
} /* end for */
/* The compound conversion functions need a background buffer */
cdata->need_bkg = H5T_BKG_YES;
if(src_nmembs < dst_nmembs) {
priv->subset_info.subset = H5T_SUBSET_SRC;
for(i = 0; i < src_nmembs; i++) {
/* If any of source members doesn't have counterpart in the same
* order or there's conversion between members, don't do the
* optimization.
*/
if(src2dst[i] != (int)i || (src->shared->u.compnd.memb[i].offset != dst->shared->u.compnd.memb[i].offset) || (priv->memb_path[i])->is_noop == FALSE) {
priv->subset_info.subset = H5T_SUBSET_FALSE;
break;
} /* end if */
} /* end for */
/* Compute the size of the data to be copied for each element. It
* may be smaller than either src or dst if there is extra space at
* the end of src.
*/
if(priv->subset_info.subset == H5T_SUBSET_SRC)
priv->subset_info.copy_size = src->shared->u.compnd.memb[src_nmembs - 1].offset
+ src->shared->u.compnd.memb[src_nmembs - 1].size;
} else if(dst_nmembs < src_nmembs) {
priv->subset_info.subset = H5T_SUBSET_DST;
for(i = 0; i < dst_nmembs; i++) {
/* If any of source members doesn't have counterpart in the same order or
* there's conversion between members, don't do the optimization. */
if(src2dst[i] != (int)i || (src->shared->u.compnd.memb[i].offset != dst->shared->u.compnd.memb[i].offset) || (priv->memb_path[i])->is_noop == FALSE) {
priv->subset_info.subset = H5T_SUBSET_FALSE;
break;
}
} /* end for */
/* Compute the size of the data to be copied for each element. It
* may be smaller than either src or dst if there is extra space at
* the end of dst.
*/
if(priv->subset_info.subset == H5T_SUBSET_DST)
priv->subset_info.copy_size = dst->shared->u.compnd.memb[dst_nmembs-1].offset
+ dst->shared->u.compnd.memb[dst_nmembs-1].size;
} else /* If the numbers of source and dest members are equal and no conversion is needed,
* the case should have been handled as noop earlier in H5Dio.c. */
{;}
cdata->recalc = FALSE;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T_conv_struct_init() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_struct_subset
*
* Purpose: A quick way to return a field in a struct private in this
* file. The flag SMEMBS_SUBSET indicates whether the source
* members are a subset of destination or the destination
* members are a subset of the source, and the order is the
* same, and no conversion is needed. For example:
* struct source { struct destination {
* TYPE1 A; --> TYPE1 A;
* TYPE2 B; --> TYPE2 B;
* TYPE3 C; --> TYPE3 C;
* }; TYPE4 D;
* TYPE5 E;
* };
*
* Return: A pointer to the subset info struct in p. Points directly
* into the structure.
*
* Programmer: Raymond Lu
* 8 June 2007
*
*-------------------------------------------------------------------------
*/
H5T_subset_info_t *
H5T__conv_struct_subset(const H5T_cdata_t *cdata)
{
H5T_conv_struct_t *priv = NULL;
FUNC_ENTER_PACKAGE_NOERR
HDassert(cdata);
HDassert(cdata->priv);
priv = (H5T_conv_struct_t *)(cdata->priv);
FUNC_LEAVE_NOAPI((H5T_subset_info_t *) &priv->subset_info)
} /* end H5T__conv_struct_subset() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_struct
*
* Purpose: Converts between compound datatypes. This is a soft
* conversion function. The algorithm is basically:
*
* For each element do
* For I=1..NELMTS do
* If sizeof destination type <= sizeof source type then
* Convert member to destination type;
* Move member as far left as possible;
*
* For I=NELMTS..1 do
* If not destination type then
* Convert member to destination type;
* Move member to correct position in BKG
*
* Copy BKG to BUF
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Thursday, January 22, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_struct(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t bkg_stride, void *_buf, void *_bkg)
{
uint8_t *buf = (uint8_t *)_buf; /*cast for pointer arithmetic */
uint8_t *bkg = (uint8_t *)_bkg; /*background pointer arithmetic */
uint8_t *xbuf = buf, *xbkg = bkg; /*temp pointers into buf and bkg*/
H5T_t *src = NULL; /*source datatype */
H5T_t *dst = NULL; /*destination datatype */
int *src2dst = NULL; /*maps src member to dst member */
H5T_cmemb_t *src_memb = NULL; /*source struct member descript.*/
H5T_cmemb_t *dst_memb = NULL; /*destination struct memb desc. */
size_t offset; /*byte offset wrt struct */
ssize_t src_delta; /*source stride */
ssize_t bkg_delta; /*background stride */
size_t elmtno;
unsigned u; /*counters */
int i; /*counters */
H5T_conv_struct_t *priv = (H5T_conv_struct_t *)(cdata->priv);
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
/*
* First, determine if this conversion function applies to the
* conversion path SRC_ID-->DST_ID. If not, return failure;
* otherwise initialize the `priv' field of `cdata' with information
* that remains (almost) constant for this conversion path.
*/
if (NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_COMPOUND != src->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_COMPOUND datatype")
if(H5T_COMPOUND != dst->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_COMPOUND datatype")
if(H5T_conv_struct_init(src, dst, cdata) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to initialize conversion data")
break;
case H5T_CONV_FREE:
/*
* Free the private conversion data.
*/
cdata->priv = H5T_conv_struct_free(priv);
break;
case H5T_CONV_CONV:
/*
* Conversion.
*/
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a datatype")
HDassert(priv);
HDassert(bkg && cdata->need_bkg);
if(cdata->recalc && H5T_conv_struct_init(src, dst, cdata) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to initialize conversion data")
/*
* Insure that members are sorted.
*/
H5T__sort_value(src, NULL);
H5T__sort_value(dst, NULL);
src2dst = priv->src2dst;
/*
* Direction of conversion and striding through background.
*/
if(buf_stride) {
H5_CHECKED_ASSIGN(src_delta, ssize_t, buf_stride, size_t);
if(!bkg_stride) {
H5_CHECKED_ASSIGN(bkg_delta, ssize_t, dst->shared->size, size_t);
} /* end if */
else
H5_CHECKED_ASSIGN(bkg_delta, ssize_t, bkg_stride, size_t);
} /* end if */
else if(dst->shared->size <= src->shared->size) {
H5_CHECKED_ASSIGN(src_delta, ssize_t, src->shared->size, size_t);
H5_CHECKED_ASSIGN(bkg_delta, ssize_t, dst->shared->size, size_t);
} /* end else-if */
else {
H5_CHECK_OVERFLOW(src->shared->size, size_t, ssize_t);
src_delta = -(ssize_t)src->shared->size;
H5_CHECK_OVERFLOW(dst->shared->size, size_t, ssize_t);
bkg_delta = -(ssize_t)dst->shared->size;
xbuf += (nelmts - 1) * src->shared->size;
xbkg += (nelmts - 1) * dst->shared->size;
} /* end else */
/* Conversion loop... */
for(elmtno = 0; elmtno < nelmts; elmtno++) {
/*
* For each source member which will be present in the
* destination, convert the member to the destination type unless
* it is larger than the source type. Then move the member to the
* left-most unoccupied position in the buffer. This makes the
* data point as small as possible with all the free space on the
* right side.
*/
for(u = 0, offset = 0; u < src->shared->u.compnd.nmembs; u++) {
if(src2dst[u] < 0)
continue; /*subsetting*/
src_memb = src->shared->u.compnd.memb + u;
dst_memb = dst->shared->u.compnd.memb + src2dst[u];
if(dst_memb->size <= src_memb->size) {
if(H5T_convert(priv->memb_path[u], priv->src_memb_id[u],
priv->dst_memb_id[src2dst[u]],
(size_t)1, (size_t)0, (size_t)0, /*no striding (packed array)*/
xbuf + src_memb->offset, xbkg + dst_memb->offset) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to convert compound datatype member")
HDmemmove(xbuf + offset, xbuf + src_memb->offset, dst_memb->size);
offset += dst_memb->size;
} /* end if */
else {
HDmemmove (xbuf+offset, xbuf+src_memb->offset,
src_memb->size);
offset += src_memb->size;
} /* end else */
} /* end for */
/*
* For each source member which will be present in the
* destination, convert the member to the destination type if it
* is larger than the source type (that is, has not been converted
* yet). Then copy the member to the destination offset in the
* background buffer.
*/
H5_CHECK_OVERFLOW(src->shared->u.compnd.nmembs, size_t, int);
for(i = (int)src->shared->u.compnd.nmembs - 1; i >= 0; --i) {
if(src2dst[i] < 0)
continue; /*subsetting*/
src_memb = src->shared->u.compnd.memb + i;
dst_memb = dst->shared->u.compnd.memb + src2dst[i];
if(dst_memb->size > src_memb->size) {
offset -= src_memb->size;
if(H5T_convert(priv->memb_path[i],
priv->src_memb_id[i], priv->dst_memb_id[src2dst[i]],
(size_t)1, (size_t)0, (size_t)0, /*no striding (packed array)*/
xbuf + offset, xbkg + dst_memb->offset) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to convert compound datatype member")
} /* end if */
else
offset -= dst_memb->size;
HDmemmove(xbkg + dst_memb->offset, xbuf + offset, dst_memb->size);
} /* end for */
HDassert(0 == offset);
/*
* Update pointers
*/
xbuf += src_delta;
xbkg += bkg_delta;
} /* end for */
/* If the bkg_delta was set to -(dst->shared->size), make it positive now */
if(buf_stride == 0 && dst->shared->size > src->shared->size)
H5_CHECKED_ASSIGN(bkg_delta, ssize_t, dst->shared->size, size_t);
/*
* Copy the background buffer back into the in-place conversion
* buffer.
*/
for(xbuf = buf, xbkg = bkg, elmtno = 0; elmtno < nelmts; elmtno++) {
HDmemmove(xbuf, xbkg, dst->shared->size);
xbuf += buf_stride ? buf_stride : dst->shared->size;
xbkg += bkg_delta;
} /* end for */
break;
default:
/* Some other command we don't know about yet.*/
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_struct() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_struct_opt
*
* Purpose: Converts between compound datatypes in a manner more
* efficient than the general-purpose H5T__conv_struct()
* function. This function isn't applicable if the destination
* is larger than the source type. This is a soft conversion
* function. The algorithm is basically:
*
* For each member of the struct
* If sizeof destination type <= sizeof source type then
* Convert member to destination type for all elements
* Move memb to BKG buffer for all elements
* Else
* Move member as far left as possible for all elements
*
* For each member of the struct (in reverse order)
* If not destination type then
* Convert member to destination type for all elements
* Move member to correct position in BKG for all elements
*
* Copy BKG to BUF for all elements
*
* Special case when the source and destination members
* are a subset of each other, and the order is the same, and no
* conversion is needed. For example:
* struct source { struct destination {
* TYPE1 A; --> TYPE1 A;
* TYPE2 B; --> TYPE2 B;
* TYPE3 C; --> TYPE3 C;
* }; TYPE4 D;
* TYPE5 E;
* };
* The optimization is simply moving data to the appropriate
* places in the buffer.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Thursday, January 22, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_struct_opt(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t bkg_stride, void *_buf, void *_bkg)
{
uint8_t *buf = (uint8_t *)_buf; /*cast for pointer arithmetic */
uint8_t *bkg = (uint8_t *)_bkg; /*background pointer arithmetic */
uint8_t *xbuf = NULL; /*temporary pointer into `buf' */
uint8_t *xbkg = NULL; /*temporary pointer into `bkg' */
H5T_t *src = NULL; /*source datatype */
H5T_t *dst = NULL; /*destination datatype */
int *src2dst = NULL; /*maps src member to dst member */
H5T_cmemb_t *src_memb = NULL; /*source struct member descript.*/
H5T_cmemb_t *dst_memb = NULL; /*destination struct memb desc. */
size_t offset; /*byte offset wrt struct */
size_t elmtno; /*element counter */
size_t copy_size; /*size of element for copying */
H5T_conv_struct_t *priv = NULL; /*private data */
hbool_t no_stride = FALSE; /*flag to indicate no stride */
unsigned u; /*counters */
int i; /*counters */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
/*
* First, determine if this conversion function applies to the
* conversion path SRC_ID-->DST_ID. If not, return failure;
* otherwise initialize the `priv' field of `cdata' with information
* that remains (almost) constant for this conversion path.
*/
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_COMPOUND != src->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_COMPOUND datatype")
if(H5T_COMPOUND != dst->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_COMPOUND datatype")
/* Initialize data which is relatively constant */
if(H5T_conv_struct_init(src, dst, cdata) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to initialize conversion data")
priv = (H5T_conv_struct_t *)(cdata->priv);
src2dst = priv->src2dst;
/*
* If the destination type is not larger than the source type then
* this conversion function is guaranteed to work (provided all
* members can be converted also). Otherwise the determination is
* quite a bit more complicated. Essentially we have to make sure
* that there is always room in the source buffer to do the
* conversion of a member in place. This is basically the same pair
* of loops as in the actual conversion except it checks that there
* is room for each conversion instead of actually doing anything.
*/
if(dst->shared->size > src->shared->size) {
for(u = 0, offset = 0; u < src->shared->u.compnd.nmembs; u++) {
if(src2dst[u] < 0)
continue;
src_memb = src->shared->u.compnd.memb + u;
dst_memb = dst->shared->u.compnd.memb + src2dst[u];
if(dst_memb->size > src_memb->size)
offset += src_memb->size;
} /* end for */
H5_CHECK_OVERFLOW(src->shared->u.compnd.nmembs, size_t, int);
for(i = (int)src->shared->u.compnd.nmembs - 1; i >= 0; --i) {
if(src2dst[i] < 0)
continue;
src_memb = src->shared->u.compnd.memb + i;
dst_memb = dst->shared->u.compnd.memb + src2dst[i];
if(dst_memb->size > src_memb->size) {
offset -= src_memb->size;
if(dst_memb->size > src->shared->size-offset) {
cdata->priv = H5T_conv_struct_free(priv);
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "conversion is unsupported by this function")
} /* end if */
} /* end if */
} /* end for */
} /* end if */
break;
case H5T_CONV_FREE:
/*
* Free the private conversion data.
*/
cdata->priv = H5T_conv_struct_free((H5T_conv_struct_t *)(cdata->priv));
break;
case H5T_CONV_CONV:
/*
* Conversion.
*/
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/* Update cached data if necessary */
if(cdata->recalc && H5T_conv_struct_init(src, dst, cdata) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to initialize conversion data")
priv = (H5T_conv_struct_t *)(cdata->priv);
HDassert(priv);
src2dst = priv->src2dst;
HDassert(bkg && cdata->need_bkg);
/*
* Insure that members are sorted.
*/
H5T__sort_value(src, NULL);
H5T__sort_value(dst, NULL);
/*
* Calculate strides. If BUF_STRIDE is non-zero then convert one
* data element at every BUF_STRIDE bytes through the main buffer
* (BUF), leaving the result of each conversion at the same
* location; otherwise assume the source and destination data are
* packed tightly based on src->shared->size and dst->shared->size. Also, if
* BUF_STRIDE and BKG_STRIDE are both non-zero then place
* background data into the BKG buffer at multiples of BKG_STRIDE;
* otherwise assume BKG buffer is the packed destination datatype.
*/
if(!buf_stride || !bkg_stride)
bkg_stride = dst->shared->size;
if(!buf_stride) {
no_stride = TRUE;
buf_stride = src->shared->size;
} /* end if */
if(priv->subset_info.subset == H5T_SUBSET_SRC || priv->subset_info.subset == H5T_SUBSET_DST) {
/* If the optimization flag is set to indicate source members are a subset and
* in the top of the destination, simply copy the source members to background buffer.
*/
xbuf = buf;
xbkg = bkg;
copy_size = priv->subset_info.copy_size;
for(elmtno = 0; elmtno < nelmts; elmtno++) {
HDmemmove(xbkg, xbuf, copy_size);
/* Update pointers */
xbuf += buf_stride;
xbkg += bkg_stride;
} /* end for */
} /* end if */
else {
/*
* For each member where the destination is not larger than the
* source, stride through all the elements converting only that member
* in each element and then copying the element to its final
* destination in the bkg buffer. Otherwise move the element as far
* left as possible in the buffer.
*/
for(u = 0, offset = 0; u < src->shared->u.compnd.nmembs; u++) {
if(src2dst[u] < 0)
continue; /*subsetting*/
src_memb = src->shared->u.compnd.memb + u;
dst_memb = dst->shared->u.compnd.memb + src2dst[u];
if(dst_memb->size <= src_memb->size) {
xbuf = buf + src_memb->offset;
xbkg = bkg + dst_memb->offset;
if(H5T_convert(priv->memb_path[u], priv->src_memb_id[u],
priv->dst_memb_id[src2dst[u]], nelmts,
buf_stride, bkg_stride, xbuf, xbkg) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to convert compound datatype member")
for(elmtno = 0; elmtno < nelmts; elmtno++) {
HDmemmove(xbkg, xbuf, dst_memb->size);
xbuf += buf_stride;
xbkg += bkg_stride;
} /* end for */
} /* end if */
else {
for(xbuf = buf, elmtno = 0; elmtno < nelmts; elmtno++) {
HDmemmove(xbuf + offset, xbuf + src_memb->offset, src_memb->size);
xbuf += buf_stride;
} /* end for */
offset += src_memb->size;
} /* end else */
} /* end else */
/*
* Work from right to left, converting those members that weren't
* converted in the previous loop (those members where the destination
* is larger than the source) and them to their final position in the
* bkg buffer.
*/
H5_CHECK_OVERFLOW(src->shared->u.compnd.nmembs, size_t, int);
for(i = (int)src->shared->u.compnd.nmembs - 1; i >= 0; --i) {
if(src2dst[i] < 0)
continue;
src_memb = src->shared->u.compnd.memb + i;
dst_memb = dst->shared->u.compnd.memb + src2dst[i];
if(dst_memb->size > src_memb->size) {
offset -= src_memb->size;
xbuf = buf + offset;
xbkg = bkg + dst_memb->offset;
if(H5T_convert(priv->memb_path[i], priv->src_memb_id[i],
priv->dst_memb_id[src2dst[i]], nelmts,
buf_stride, bkg_stride, xbuf, xbkg) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to convert compound datatype member")
for(elmtno = 0; elmtno < nelmts; elmtno++) {
HDmemmove(xbkg, xbuf, dst_memb->size);
xbuf += buf_stride;
xbkg += bkg_stride;
} /* end for */
} /* end if */
} /* end for */
} /* end else */
if(no_stride)
buf_stride = dst->shared->size;
/* Move background buffer into result buffer */
for(xbuf = buf, xbkg = bkg, elmtno = 0; elmtno < nelmts; elmtno++) {
HDmemmove(xbuf, xbkg, dst->shared->size);
xbuf += buf_stride;
xbkg += bkg_stride;
} /* end for */
break;
default:
/* Some other command we don't know about yet.*/
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_struct_opt() */
/*-------------------------------------------------------------------------
* Function: H5T_conv_enum_init
*
* Purpose: Initialize information for H5T__conv_enum().
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Monday, January 4, 1999
*
*-------------------------------------------------------------------------
*/
static herr_t
H5T_conv_enum_init(H5T_t *src, H5T_t *dst, H5T_cdata_t *cdata)
{
H5T_enum_struct_t *priv = NULL; /*private conversion data */
int n; /*src value cast as native int */
int domain[2] = {0, 0}; /*min and max source values */
int *map = NULL; /*map from src value to dst idx */
unsigned length; /*nelmts in map array */
unsigned i, j; /*counters */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
cdata->need_bkg = H5T_BKG_NO;
if(NULL == (priv = (H5T_enum_struct_t *)(cdata->priv = H5MM_calloc(sizeof(*priv)))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
if(0 == src->shared->u.enumer.nmembs)
HGOTO_DONE(SUCCEED);
/*
* Check that the source symbol names are a subset of the destination
* symbol names and build a map from source member index to destination
* member index.
*/
H5T__sort_name(src, NULL);
H5T__sort_name(dst, NULL);
if(NULL == (priv->src2dst = (int *)H5MM_malloc(src->shared->u.enumer.nmembs * sizeof(int))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
for(i = 0, j = 0;
i < src->shared->u.enumer.nmembs && j < dst->shared->u.enumer.nmembs;
i++, j++) {
while(j < dst->shared->u.enumer.nmembs &&
HDstrcmp(src->shared->u.enumer.name[i], dst->shared->u.enumer.name[j]))
j++;
if(j >= dst->shared->u.enumer.nmembs)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "source type is not a subset of destination type")
priv->src2dst[i] = (int)j;
} /* end for */
/*
* The conversion function will use an O(log N) lookup method for each
* value converted. However, if all of the following constraints are met
* then we can build a perfect hash table and use an O(1) lookup method.
*
* A: The source datatype size matches one of our native datatype
* sizes.
*
* B: After casting the source value bit pattern to a native type
* the size of the range of values is less than 20% larger than
* the number of values.
*
* If this special case is met then we use the source bit pattern cast as
* a native integer type as an index into the `val2dst'. The values of
* that array are the index numbers in the destination type or negative
* if the entry is unused.
*
* (This optimized algorithm doesn't work when the byte orders are different.
* The code such as "n = *((int*)(src->shared->u.enumer.value+i*src->shared->size));"
* can change the value significantly. i.g. if the source value is big-endian 0x0000000f,
* executing the casting on little-endian machine will get a big number 0x0f000000.
* Then it can't meet the condition
* "if(src->shared->u.enumer.nmembs<2 || (double)length/src->shared->u.enumer.nmembs<1.2)"
* Because this is the optimized code, we won't fix it. It should still work in some
* situations. SLU - 2011/5/24)
*/
if(1 == src->shared->size || sizeof(short) == src->shared->size || sizeof(int) == src->shared->size) {
for(i = 0; i < src->shared->u.enumer.nmembs; i++) {
if(1 == src->shared->size)
n = *((signed char *)((uint8_t *)src->shared->u.enumer.value + i));
else if (sizeof(short) == src->shared->size)
n = *((short *)((void *)((uint8_t *)src->shared->u.enumer.value + (i * src->shared->size))));
else
n = *((int *)((void *)((uint8_t *)src->shared->u.enumer.value + (i * src->shared->size))));
if(0 == i) {
domain[0] = domain[1] = n;
} else {
domain[0] = MIN(domain[0], n);
domain[1] = MAX(domain[1], n);
}
} /* end for */
HDassert(domain[1] >= domain[0]);
length = (unsigned)(domain[1] - domain[0]) + 1;
if(src->shared->u.enumer.nmembs < 2 ||
(double)length / src->shared->u.enumer.nmembs < (double)(1.2f)) {
priv->base = domain[0];
priv->length = length;
if(NULL == (map = (int *)H5MM_malloc(length * sizeof(int))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed")
for(i = 0; i < length; i++)
map[i] = -1; /*entry unused*/
for(i = 0; i < src->shared->u.enumer.nmembs; i++) {
if(1 == src->shared->size)
n = *((signed char *)((uint8_t *)src->shared->u.enumer.value + i));
else if(sizeof(short) == src->shared->size)
n = *((short *)((void *)((uint8_t *)src->shared->u.enumer.value + (i * src->shared->size))));
else
n = *((int *)((void *)((uint8_t *)src->shared->u.enumer.value + (i * src->shared->size))));
n -= priv->base;
HDassert(n >= 0 && (unsigned)n < priv->length);
HDassert(map[n] < 0);
map[n] = priv->src2dst[i];
} /* end for */
/*
* Replace original src2dst array with our new one. The original
* was indexed by source member number while the new one is
* indexed by source values.
*/
H5MM_xfree(priv->src2dst);
priv->src2dst = map;
HGOTO_DONE(SUCCEED);
}
}
/* Sort source type by value and adjust src2dst[] appropriately */
H5T__sort_value(src, priv->src2dst);
done:
if (ret_value<0 && priv) {
H5MM_xfree(priv->src2dst);
H5MM_xfree(priv);
cdata->priv = NULL;
}
FUNC_LEAVE_NOAPI(ret_value)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_enum
*
* Purpose: Converts one type of enumerated data to another.
*
* Return: Success: Non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, January 4, 1999
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_enum(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *_buf,
void H5_ATTR_UNUSED *bkg)
{
uint8_t *buf = (uint8_t*)_buf; /*cast for pointer arithmetic */
H5T_t *src = NULL, *dst = NULL; /*src and dst datatypes */
uint8_t *s = NULL, *d = NULL; /*src and dst BUF pointers */
ssize_t src_delta, dst_delta; /*conversion strides */
int n; /*src value cast as native int */
H5T_enum_struct_t *priv = (H5T_enum_struct_t*)(cdata->priv);
H5T_conv_cb_t cb_struct; /*conversion callback structure */
H5T_conv_ret_t except_ret; /*return of callback function */
size_t i; /*counters */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
/*
* Determine if this conversion function applies to the conversion
* path SRC_ID->DST_ID. If not return failure; otherwise initialize
* the `priv' field of `cdata' with information about the underlying
* integer conversion.
*/
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_ENUM != src->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_ENUM datatype")
if(H5T_ENUM != dst->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_ENUM datatype")
if(H5T_conv_enum_init(src, dst, cdata) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to initialize private data")
break;
case H5T_CONV_FREE:
#ifdef H5T_DEBUG
if (H5DEBUG(T)) {
HDfprintf(H5DEBUG(T), " Using %s mapping function%s\n",
priv->length?"O(1)":"O(log N)",
priv->length?"":", where N is the number of enum members");
}
#endif
if (priv) {
H5MM_xfree(priv->src2dst);
H5MM_xfree(priv);
}
cdata->priv = NULL;
break;
case H5T_CONV_CONV:
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_ENUM != src->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_ENUM datatype")
if(H5T_ENUM != dst->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_ENUM datatype")
/* priv->src2dst map was computed for certain sort keys. Make sure those same
* sort keys are used here during conversion. See H5T_conv_enum_init(). But
* we actually don't care about the source type's order when doing the O(1)
* conversion algorithm, which is turned on by non-zero priv->length */
H5T__sort_name(dst, NULL);
if(!priv->length)
H5T__sort_value(src, NULL);
/*
* Direction of conversion.
*/
if(buf_stride) {
H5_CHECK_OVERFLOW(buf_stride, size_t, ssize_t);
src_delta = dst_delta = (ssize_t)buf_stride;
s = d = buf;
} else if(dst->shared->size <= src->shared->size) {
H5_CHECKED_ASSIGN(src_delta, ssize_t, src->shared->size, size_t);
H5_CHECKED_ASSIGN(dst_delta, ssize_t, dst->shared->size, size_t);
s = d = buf;
} else {
H5_CHECK_OVERFLOW(src->shared->size, size_t, ssize_t);
H5_CHECK_OVERFLOW(dst->shared->size, size_t, ssize_t);
src_delta = -(ssize_t)src->shared->size;
dst_delta = -(ssize_t)dst->shared->size;
s = buf + (nelmts - 1) * src->shared->size;
d = buf + (nelmts - 1) * dst->shared->size;
}
/* Get conversion exception callback property */
if(H5CX_get_dt_conv_cb(&cb_struct) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get conversion exception callback")
for(i = 0; i < nelmts; i++, s += src_delta, d += dst_delta) {
if(priv->length) {
/* Use O(1) lookup */
/* (The casting won't work when the byte orders are different. i.g. if the source value
* is big-endian 0x0000000f, the direct casting "n = *((int*)s);" will make it a big
* number 0x0f000000 on little-endian machine. But we won't fix it because it's an
* optimization code. Please also see the comment in the H5T_conv_enum_init() function.
* SLU - 2011/5/24)
*/
if(1 == src->shared->size)
n = *((signed char*)s);
else if(sizeof(short) == src->shared->size)
n = *((short *)((void *)s));
else
n = *((int *)((void *)s));
n -= priv->base;
if(n < 0 || (unsigned)n >= priv->length || priv->src2dst[n] < 0) {
/*overflow*/
except_ret = H5T_CONV_UNHANDLED;
/*If user's exception handler is present, use it*/
if(cb_struct.func)
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id,
s, d, cb_struct.user_data);
if(except_ret == H5T_CONV_UNHANDLED)
HDmemset(d, 0xff, dst->shared->size);
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
} else
H5MM_memcpy(d,
(uint8_t *)dst->shared->u.enumer.value + ((unsigned)priv->src2dst[n] * dst->shared->size),
dst->shared->size);
} /* end if */
else {
/* Use O(log N) lookup */
unsigned lt = 0;
unsigned rt = src->shared->u.enumer.nmembs;
unsigned md = 0;
int cmp;
while(lt < rt) {
md = (lt + rt) / 2;
cmp = HDmemcmp(s, (uint8_t *)src->shared->u.enumer.value + (md * src->shared->size),
src->shared->size);
if(cmp < 0)
rt = md;
else if(cmp > 0)
lt = md + 1;
else
break;
} /* end while */
if(lt >= rt) {
except_ret = H5T_CONV_UNHANDLED;
/*If user's exception handler is present, use it*/
if(cb_struct.func)
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id,
src, d, cb_struct.user_data);
if(except_ret == H5T_CONV_UNHANDLED)
HDmemset(d, 0xff, dst->shared->size);
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
} /* end if */
else {
HDassert(priv->src2dst[md] >= 0);
H5MM_memcpy(d,
(uint8_t *)dst->shared->u.enumer.value + ((unsigned)priv->src2dst[md] * dst->shared->size),
dst->shared->size);
} /* end else */
} /* end else */
}
break;
default:
/* Some other command we don't know about yet.*/
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_enum() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_enum_numeric
*
* Purpose: Converts enumerated data to a numeric type (integer or
* floating-point number). This function is registered into
* the conversion table twice in H5T_init_interface in H5T.c.
* Once for enum-integer conversion. Once for enum-float conversion.
*
* Return: Success: Non-negative
*
* Failure: negative
*
* Programmer: Raymond Lu
* 12 October 2012
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_enum_numeric(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t H5_ATTR_UNUSED buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *_buf,
void H5_ATTR_UNUSED *bkg)
{
H5T_t *src, *dst; /*src and dst datatypes */
H5T_t *src_parent; /*parent type for src */
hid_t src_parent_id = -1; /*ID for parent of the source */
H5T_path_t *tpath; /* Conversion information */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
/*
* Determine if this conversion function applies to the conversion
* path SRC_ID->DST_ID. If not, return failure.
*/
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_ENUM != src->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "source type is not a H5T_ENUM datatype")
if(H5T_INTEGER != dst->shared->type && H5T_FLOAT != dst->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "destination is not an integer type")
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_FREE:
break;
case H5T_CONV_CONV:
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
src_parent = src->shared->parent;
if(NULL == (tpath = H5T_path_find(src_parent, dst))) {
HGOTO_ERROR(H5E_DATASET, H5E_UNSUPPORTED, FAIL, "unable to convert between src and dest datatype")
} else if(!H5T_path_noop(tpath)) {
if((src_parent_id = H5I_register(H5I_DATATYPE, H5T_copy(src_parent, H5T_COPY_ALL), FALSE)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTREGISTER, FAIL, "unable to register types for conversion")
/* Convert the data */
if(H5T_convert(tpath, src_parent_id, dst_id, nelmts, buf_stride, bkg_stride, _buf, bkg) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "datatype conversion failed")
}
break;
default:
/* Some other command we don't know about yet.*/
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
/* Release the temporary datatype IDs used */
if(src_parent_id >= 0)
H5I_dec_ref(src_parent_id);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_enum_numeric() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_vlen
*
* Purpose: Converts between VL datatypes in memory and on disk.
* This is a soft conversion function. The algorithm is
* basically:
*
* For every VL struct in the main buffer:
* 1. Allocate space for temporary dst VL data (reuse buffer
* if possible)
* 2. Copy VL data from src buffer into dst buffer
* 3. Convert VL data into dst representation
* 4. Allocate buffer in dst heap
* 5. Free heap objects storing old data
* 6. Write dst VL data into dst heap
* 7. Store (heap ID or pointer) and length in main dst buffer
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* Wednesday, May 26, 1999
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_vlen(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t bkg_stride, void *buf, void *bkg)
{
H5T_vlen_alloc_info_t vl_alloc_info;/* VL allocation info */
H5T_path_t *tpath = NULL; /* Type conversion path */
hbool_t noop_conv = FALSE; /* Flag to indicate a noop conversion */
hbool_t write_to_file = FALSE; /* Flag to indicate writing to file */
htri_t parent_is_vlen; /* Flag to indicate parent is vlen datatyp */
hid_t tsrc_id = -1, tdst_id = -1;/*temporary type atoms */
H5T_t *src = NULL; /*source datatype */
H5T_t *dst = NULL; /*destination datatype */
H5HG_t bg_hobjid, parent_hobjid;
uint8_t *s = NULL; /*source buffer */
uint8_t *d = NULL; /*destination buffer */
uint8_t *b = NULL; /*background buffer */
ssize_t s_stride, d_stride; /*src and dst strides */
ssize_t b_stride; /*bkg stride */
size_t safe; /*how many elements are safe to process in each pass */
size_t bg_seq_len = 0;
size_t src_base_size, dst_base_size;/*source & destination base size*/
void *conv_buf = NULL; /*temporary conversion buffer */
size_t conv_buf_size = 0; /*size of conversion buffer in bytes */
void *tmp_buf = NULL; /*temporary background buffer */
size_t tmp_buf_size = 0; /*size of temporary bkg buffer */
hbool_t nested = FALSE; /*flag of nested VL case */
size_t elmtno; /*element number counter */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
/*
* First, determine if this conversion function applies to the
* conversion path SRC_ID-->DST_ID. If not, return failure;
* otherwise initialize the `priv' field of `cdata' with
* information that remains (almost) constant for this
* conversion path.
*/
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_VLEN != src->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_VLEN datatype")
if(H5T_VLEN != dst->shared->type)
HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "not a H5T_VLEN datatype")
if(H5T_VLEN_STRING == src->shared->u.vlen.type && H5T_VLEN_STRING == dst->shared->u.vlen.type) {
if((H5T_CSET_ASCII == src->shared->u.vlen.cset && H5T_CSET_UTF8 == dst->shared->u.vlen.cset)
|| (H5T_CSET_ASCII == dst->shared->u.vlen.cset && H5T_CSET_UTF8 == src->shared->u.vlen.cset))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "The library doesn't convert between strings of ASCII and UTF")
}
/* Variable-length types don't need a background buffer */
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_FREE:
/* QAK - Nothing to do currently */
break;
case H5T_CONV_CONV:
/*
* Conversion.
*/
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/* Initialize source & destination strides */
if(buf_stride) {
HDassert(buf_stride >= src->shared->size);
HDassert(buf_stride >= dst->shared->size);
H5_CHECK_OVERFLOW(buf_stride, size_t, ssize_t);
s_stride = d_stride = (ssize_t)buf_stride;
} /* end if */
else {
H5_CHECK_OVERFLOW(src->shared->size, size_t, ssize_t);
H5_CHECK_OVERFLOW(dst->shared->size, size_t, ssize_t);
s_stride = (ssize_t)src->shared->size;
d_stride = (ssize_t)dst->shared->size;
} /* end else */
if(bkg) {
if(bkg_stride)
b_stride = (ssize_t)bkg_stride;
else
b_stride = d_stride;
} /* end if */
else
b_stride = 0;
/* Get the size of the base types in src & dst */
src_base_size = H5T_get_size(src->shared->parent);
dst_base_size = H5T_get_size(dst->shared->parent);
/* Set up conversion path for base elements */
if(NULL == (tpath = H5T_path_find(src->shared->parent, dst->shared->parent)))
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unable to convert between src and dest datatypes")
else if(!H5T_path_noop(tpath)) {
if((tsrc_id = H5I_register(H5I_DATATYPE, H5T_copy(src->shared->parent, H5T_COPY_ALL), FALSE)) < 0 ||
(tdst_id = H5I_register(H5I_DATATYPE, H5T_copy(dst->shared->parent, H5T_COPY_ALL), FALSE)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTREGISTER, FAIL, "unable to register types for conversion")
} /* end else-if */
else
noop_conv = TRUE;
/* Check if we need a temporary buffer for this conversion */
if((parent_is_vlen = H5T_detect_class(dst->shared->parent, H5T_VLEN, FALSE)) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_SYSTEM, FAIL, "internal error when detecting variable-length class")
if(tpath->cdata.need_bkg || parent_is_vlen) {
/* Set up initial background buffer */
tmp_buf_size = MAX(src_base_size, dst_base_size);
if(NULL == (tmp_buf = H5FL_BLK_CALLOC(vlen_seq,tmp_buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "memory allocation failed for type conversion")
} /* end if */
/* Get the allocation info */
if(H5CX_get_vlen_alloc_info(&vl_alloc_info) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to retrieve VL allocation info")
/* Set flags to indicate we are writing to or reading from the file */
if(dst->shared->u.vlen.f != NULL)
write_to_file = TRUE;
/* Set the flag for nested VL case */
if(write_to_file && parent_is_vlen && bkg != NULL)
nested = TRUE;
/* The outer loop of the type conversion macro, controlling which */
/* direction the buffer is walked */
while(nelmts > 0) {
/* Check if we need to go backwards through the buffer */
if(d_stride > s_stride) {
/* Sanity check */
HDassert(s_stride > 0);
HDassert(d_stride > 0);
HDassert(b_stride >= 0);
/* Compute the number of "safe" destination elements at */
/* the end of the buffer (Those which don't overlap with */
/* any source elements at the beginning of the buffer) */
safe = nelmts - (((nelmts * (size_t)s_stride) + ((size_t)d_stride - 1)) / (size_t)d_stride);
/* If we're down to the last few elements, just wrap up */
/* with a "real" reverse copy */
if(safe < 2) {
s = (uint8_t *)buf + (nelmts - 1) * (size_t)s_stride;
d = (uint8_t *)buf + (nelmts - 1) * (size_t)d_stride;
b = (uint8_t *)bkg + (nelmts - 1) * (size_t)b_stride;
s_stride = -s_stride;
d_stride = -d_stride;
b_stride = -b_stride;
safe = nelmts;
} /* end if */
else {
s = (uint8_t *)buf + (nelmts - safe) * (size_t)s_stride;
d = (uint8_t *)buf + (nelmts - safe) * (size_t)d_stride;
b = (uint8_t *)bkg + (nelmts - safe) * (size_t)b_stride;
} /* end else */
} /* end if */
else {
/* Single forward pass over all data */
s = d = (uint8_t *)buf;
b = (uint8_t *)bkg;
safe = nelmts;
} /* end else */
for(elmtno = 0; elmtno < safe; elmtno++) {
/* Check for "nil" source sequence */
if((*(src->shared->u.vlen.isnull))(src->shared->u.vlen.f, s)) {
/* Write "nil" sequence to destination location */
if((*(dst->shared->u.vlen.setnull))(dst->shared->u.vlen.f, d, b) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_WRITEERROR, FAIL, "can't set VL data to 'nil'")
} /* end if */
else {
ssize_t sseq_len; /* (signed) The number of elements in the current sequence*/
size_t seq_len; /* The number of elements in the current sequence*/
/* Get length of element sequences */
if((sseq_len = (*(src->shared->u.vlen.getlen))(s)) < 0)
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "incorrect length")
seq_len = (size_t)sseq_len;
/* If we are reading from memory and there is no conversion, just get the pointer to sequence */
if(write_to_file && noop_conv) {
/* Get direct pointer to sequence */
if(NULL == (conv_buf = (*(src->shared->u.vlen.getptr))(s)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "invalid source pointer")
} /* end if */
else {
size_t src_size, dst_size; /*source & destination total size in bytes*/
src_size = seq_len * src_base_size;
dst_size = seq_len * dst_base_size;
/* Check if conversion buffer is large enough, resize if
* necessary. If the SEQ_LEN is 0, allocate a minimal size buffer.
*/
if(!seq_len && !conv_buf) {
conv_buf_size = ((1 / H5T_VLEN_MIN_CONF_BUF_SIZE) + 1) * H5T_VLEN_MIN_CONF_BUF_SIZE;
if(NULL == (conv_buf = H5FL_BLK_CALLOC(vlen_seq, conv_buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion")
}
else if(conv_buf_size < MAX(src_size, dst_size)) {
/* Only allocate conversion buffer in H5T_VLEN_MIN_CONF_BUF_SIZE increments */
conv_buf_size = ((MAX(src_size, dst_size) / H5T_VLEN_MIN_CONF_BUF_SIZE) + 1) * H5T_VLEN_MIN_CONF_BUF_SIZE;
if(NULL == (conv_buf = H5FL_BLK_REALLOC(vlen_seq, conv_buf, conv_buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion")
HDmemset(conv_buf, 0, conv_buf_size);
} /* end if */
/* Read in VL sequence */
if((*(src->shared->u.vlen.read))(src->shared->u.vlen.f, s, conv_buf, src_size) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_READERROR, FAIL, "can't read VL data")
} /* end else */
if(!noop_conv) {
/* Check if temporary buffer is large enough, resize if necessary */
/* (Chain off the conversion buffer size) */
if(tmp_buf && tmp_buf_size < conv_buf_size) {
/* Set up initial background buffer */
tmp_buf_size = conv_buf_size;
if(NULL == (tmp_buf = H5FL_BLK_REALLOC(vlen_seq, tmp_buf, tmp_buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion")
HDmemset(tmp_buf, 0, tmp_buf_size);
} /* end if */
/* If we are writing and there is a nested VL type, read
* the sequence into the background buffer */
if(nested) {
const uint8_t *tmp = b;
UINT32DECODE(tmp, bg_seq_len);
if(bg_seq_len > 0) {
if(tmp_buf_size < (bg_seq_len * MAX(src_base_size, dst_base_size))) {
tmp_buf_size = (bg_seq_len * MAX(src_base_size, dst_base_size));
if(NULL == (tmp_buf = H5FL_BLK_REALLOC(vlen_seq, tmp_buf, tmp_buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion")
HDmemset(tmp_buf, 0, tmp_buf_size);
} /* end if */
H5F_addr_decode(dst->shared->u.vlen.f, &tmp, &(bg_hobjid.addr));
UINT32DECODE(tmp, bg_hobjid.idx);
if(NULL == H5HG_read(dst->shared->u.vlen.f, &bg_hobjid, tmp_buf, NULL))
HGOTO_ERROR(H5E_DATATYPE, H5E_READERROR, FAIL, "can't read VL sequence into background buffer")
} /* end if */
/* If the sequence gets shorter, pad out the original sequence with zeros */
if(bg_seq_len < seq_len)
HDmemset((uint8_t *)tmp_buf + dst_base_size * bg_seq_len, 0, (seq_len - bg_seq_len) * dst_base_size);
} /* end if */
/* Convert VL sequence */
if(H5T_convert(tpath, tsrc_id, tdst_id, seq_len, (size_t)0, (size_t)0, conv_buf, tmp_buf) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "datatype conversion failed")
} /* end if */
/* Write sequence to destination location */
if((*(dst->shared->u.vlen.write))(dst->shared->u.vlen.f, &vl_alloc_info, d, conv_buf, b, seq_len, dst_base_size) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_WRITEERROR, FAIL, "can't write VL data")
if(!noop_conv) {
/* For nested VL case, free leftover heap objects from the deeper level if the length of new data elements is shorter than the old data elements.*/
if(nested && seq_len < bg_seq_len) {
size_t parent_seq_len;
const uint8_t *tmp;
size_t u;
/* TMP_P is reset each time in the loop because DST_BASE_SIZE may include some data in addition to VL info. - SLU */
for(u = seq_len; u < bg_seq_len; u++) {
tmp = (uint8_t *)tmp_buf + u * dst_base_size;
UINT32DECODE(tmp, parent_seq_len);
if(parent_seq_len > 0) {
H5F_addr_decode(dst->shared->u.vlen.f, &tmp, &(parent_hobjid.addr));
UINT32DECODE(tmp, parent_hobjid.idx);
if(H5HG_remove(dst->shared->u.vlen.f, &parent_hobjid) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_WRITEERROR, FAIL, "Unable to remove heap object")
} /* end if */
} /* end for */
} /* end if */
} /* end if */
} /* end else */
/* Advance pointers */
s += s_stride;
d += d_stride;
b += b_stride;
} /* end for */
/* Decrement number of elements left to convert */
nelmts -= safe;
} /* end while */
/* Release the temporary datatype IDs used */
if(tsrc_id >= 0)
H5I_dec_ref(tsrc_id);
if(tdst_id >= 0)
H5I_dec_ref(tdst_id);
break;
default: /* Some other command we don't know about yet.*/
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
/* If the conversion buffer doesn't need to be freed, reset its pointer */
if(write_to_file && noop_conv)
conv_buf = NULL;
/* Release the conversion buffer (always allocated, except on errors) */
if(conv_buf)
conv_buf = H5FL_BLK_FREE(vlen_seq, conv_buf);
/* Release the background buffer, if we have one */
if(tmp_buf)
tmp_buf = H5FL_BLK_FREE(vlen_seq, tmp_buf);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_vlen() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_array
*
* Purpose: Converts between array datatypes in memory and on disk.
* This is a soft conversion function.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* Monday, November 6, 2000
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_array(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t bkg_stride, void *_buf, void H5_ATTR_UNUSED *_bkg)
{
H5T_path_t *tpath; /* Type conversion path */
hid_t tsrc_id = -1, tdst_id = -1;/*temporary type atoms */
H5T_t *src = NULL; /*source datatype */
H5T_t *dst = NULL; /*destination datatype */
uint8_t *sp, *dp; /*source and dest traversal ptrs */
ssize_t src_delta, dst_delta; /*source & destination stride */
int direction; /*direction of traversal */
size_t elmtno; /*element number counter */
unsigned u; /* local index variable */
void *bkg_buf = NULL; /*temporary background buffer */
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch (cdata->command) {
case H5T_CONV_INIT:
/*
* First, determine if this conversion function applies to the
* conversion path SRC_ID-->DST_ID. If not, return failure;
* otherwise initialize the `priv' field of `cdata' with
* information that remains (almost) constant for this
* conversion path.
*/
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
HDassert(H5T_ARRAY==src->shared->type);
HDassert(H5T_ARRAY==dst->shared->type);
/* Check the number and sizes of the dimensions */
if(src->shared->u.array.ndims != dst->shared->u.array.ndims)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "array datatypes do not have the same number of dimensions")
for(u = 0; u < src->shared->u.array.ndims; u++)
if(src->shared->u.array.dim[u] != dst->shared->u.array.dim[u])
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "array datatypes do not have the same sizes of dimensions")
/* Array datatypes don't need a background buffer */
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_FREE:
/* QAK - Nothing to do currently */
break;
case H5T_CONV_CONV:
/*
* Conversion.
*/
if (NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/*
* Do we process the values from beginning to end or vice
* versa? Also, how many of the elements have the source and
* destination areas overlapping?
*/
if(src->shared->size >= dst->shared->size || buf_stride > 0) {
sp = dp = (uint8_t*)_buf;
direction = 1;
} else {
sp = (uint8_t*)_buf + (nelmts - 1) *
(buf_stride ? buf_stride : src->shared->size);
dp = (uint8_t*)_buf + (nelmts - 1) *
(buf_stride ? buf_stride : dst->shared->size);
direction = -1;
}
/*
* Direction & size of buffer traversal.
*/
H5_CHECK_OVERFLOW(buf_stride, size_t, ssize_t);
H5_CHECK_OVERFLOW(src->shared->size, size_t, ssize_t);
H5_CHECK_OVERFLOW(dst->shared->size, size_t, ssize_t);
src_delta = (ssize_t)direction * (ssize_t)(buf_stride ? buf_stride : src->shared->size);
dst_delta = (ssize_t)direction * (ssize_t)(buf_stride ? buf_stride : dst->shared->size);
/* Set up conversion path for base elements */
if(NULL == (tpath = H5T_path_find(src->shared->parent, dst->shared->parent))) {
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unable to convert between src and dest datatypes")
} else if (!H5T_path_noop(tpath)) {
if((tsrc_id = H5I_register(H5I_DATATYPE, H5T_copy(src->shared->parent, H5T_COPY_ALL), FALSE)) < 0 ||
(tdst_id = H5I_register(H5I_DATATYPE, H5T_copy(dst->shared->parent, H5T_COPY_ALL), FALSE)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTREGISTER, FAIL, "unable to register types for conversion")
}
/* Check if we need a background buffer for this conversion */
if(tpath->cdata.need_bkg) {
size_t bkg_buf_size; /*size of background buffer in bytes */
/* Allocate background buffer */
bkg_buf_size = src->shared->u.array.nelem * MAX(src->shared->size, dst->shared->size);
if(NULL == (bkg_buf = H5FL_BLK_CALLOC(array_seq, bkg_buf_size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion")
} /* end if */
/* Perform the actual conversion */
for(elmtno = 0; elmtno < nelmts; elmtno++) {
/* Copy the source array into the correct location for the destination */
HDmemmove(dp, sp, src->shared->size);
/* Convert array */
if(H5T_convert(tpath, tsrc_id, tdst_id, src->shared->u.array.nelem, (size_t)0, bkg_stride, dp, bkg_buf) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "datatype conversion failed")
/* Advance the source & destination pointers */
sp += src_delta;
dp += dst_delta;
} /* end for */
/* Release the temporary datatype IDs used */
if(tsrc_id >= 0)
H5I_dec_ref(tsrc_id);
if(tdst_id >= 0)
H5I_dec_ref(tdst_id);
break;
default: /* Some other command we don't know about yet.*/
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
/* Release the background buffer, if we have one */
if(bkg_buf)
bkg_buf = H5FL_BLK_FREE(array_seq, bkg_buf);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_array() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_i_i
*
* Purpose: Convert one integer type to another. This is the catch-all
* function for integer conversions and is probably not
* particularly fast.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Wednesday, June 10, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_i_i(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_t *src = NULL; /*source datatype */
H5T_t *dst = NULL; /*destination datatype */
ssize_t src_delta, dst_delta; /*source & destination stride */
int direction; /*direction of traversal */
size_t elmtno; /*element number */
size_t half_size; /*half the type size */
size_t olap; /*num overlapping elements */
uint8_t *s, *sp, *d, *dp; /*source and dest traversal ptrs*/
uint8_t *src_rev=NULL; /*order-reversed source buffer */
uint8_t dbuf[64]; /*temp destination buffer */
size_t first;
ssize_t sfirst; /*a signed version of `first' */
size_t i; /*Local index variables */
H5T_conv_cb_t cb_struct={NULL, NULL}; /*conversion callback structure */
H5T_conv_ret_t except_ret; /*return of callback function */
hbool_t reverse; /*if reverse the order of destination */
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(H5T_ORDER_LE != src->shared->u.atomic.order && H5T_ORDER_BE != src->shared->u.atomic.order)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order")
if(H5T_ORDER_LE != dst->shared->u.atomic.order && H5T_ORDER_BE != dst->shared->u.atomic.order)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order")
if(dst->shared->size > sizeof dbuf)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "destination size is too large")
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_FREE:
break;
case H5T_CONV_CONV:
/* Get the datatypes */
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/*
* Do we process the values from beginning to end or vice versa? Also,
* how many of the elements have the source and destination areas
* overlapping?
*/
if (src->shared->size==dst->shared->size || buf_stride) {
sp = dp = (uint8_t*)buf;
direction = 1;
olap = nelmts;
} else if (src->shared->size>=dst->shared->size) {
double olap_d = HDceil((double)(dst->shared->size)/
(double)(src->shared->size-dst->shared->size));
olap = (size_t)olap_d;
sp = dp = (uint8_t*)buf;
direction = 1;
} else {
double olap_d = HDceil((double)(src->shared->size)/
(double)(dst->shared->size-src->shared->size));
olap = (size_t)olap_d;
sp = (uint8_t*)buf + (nelmts - 1) * src->shared->size;
dp = (uint8_t*)buf + (nelmts - 1) * dst->shared->size;
direction = -1;
}
/*
* Direction & size of buffer traversal.
*/
H5_CHECK_OVERFLOW(buf_stride, size_t, ssize_t);
H5_CHECK_OVERFLOW(src->shared->size, size_t, ssize_t);
H5_CHECK_OVERFLOW(dst->shared->size, size_t, ssize_t);
src_delta = (ssize_t)direction * (ssize_t)(buf_stride ? buf_stride : src->shared->size);
dst_delta = (ssize_t)direction * (ssize_t)(buf_stride ? buf_stride : dst->shared->size);
/* Get conversion exception callback property */
if(H5CX_get_dt_conv_cb(&cb_struct) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get conversion exception callback")
/* Allocate space for order-reversed source buffer */
src_rev = (uint8_t*)H5MM_calloc(src->shared->size);
/* The conversion loop */
for(elmtno = 0; elmtno < nelmts; elmtno++) {
/*
* If the source and destination buffers overlap then use a
* temporary buffer for the destination.
*/
if(direction > 0) {
s = sp;
d = elmtno < olap ? dbuf : dp;
} else {
s = sp;
d = elmtno + olap >= nelmts ? dbuf : dp;
}
#ifndef NDEBUG
/* I don't quite trust the overlap calculations yet --rpm */
if (d==dbuf) {
HDassert((dp>=sp && dp<sp+src->shared->size) || (sp>=dp && sp<dp+dst->shared->size));
} else {
HDassert((dp<sp && dp+dst->shared->size<=sp) || (sp<dp && sp+src->shared->size<=dp));
}
#endif
/*
* Put the data in little endian order so our loops aren't so
* complicated. We'll do all the conversion stuff assuming
* little endian and then we'll fix the order at the end.
*/
if (H5T_ORDER_BE==src->shared->u.atomic.order) {
half_size = src->shared->size/2;
for (i=0; i<half_size; i++) {
uint8_t tmp = s[src->shared->size-(i+1)];
s[src->shared->size-(i+1)] = s[i];
s[i] = tmp;
}
}
/*
* What is the bit number for the msb bit of S which is set? The
* bit number is relative to the significant part of the number.
*/
sfirst = H5T__bit_find (s, src->shared->u.atomic.offset, src->shared->u.atomic.prec,
H5T_BIT_MSB, TRUE);
first = (size_t)sfirst;
/* Set these variables to default */
except_ret = H5T_CONV_UNHANDLED;
reverse = TRUE;
if (sfirst<0) {
/*
* The source has no bits set and must therefore be zero.
* Set the destination to zero.
*/
H5T__bit_set (d, dst->shared->u.atomic.offset, dst->shared->u.atomic.prec, FALSE);
} else if (H5T_SGN_NONE==src->shared->u.atomic.u.i.sign &&
H5T_SGN_NONE==dst->shared->u.atomic.u.i.sign) {
/*
* Source and destination are both unsigned, but if the
* source has more precision bits than the destination then
* it's possible to overflow. When overflow occurs the
* destination will be set to the maximum possible value.
*/
if (src->shared->u.atomic.prec <= dst->shared->u.atomic.prec) {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset,
src->shared->u.atomic.prec);
H5T__bit_set (d, dst->shared->u.atomic.offset+src->shared->u.atomic.prec,
dst->shared->u.atomic.prec-src->shared->u.atomic.prec, FALSE);
} else if (first>=dst->shared->u.atomic.prec) {
/*overflow*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
H5T_reverse_order(src_rev, s, src->shared->size, src->shared->u.atomic.order); /*reverse order first*/
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id,
src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
H5T__bit_set (d, dst->shared->u.atomic.offset, dst->shared->u.atomic.prec, TRUE);
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED)
/*Don't reverse because user handles it already*/
reverse = FALSE;
} else {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset,
dst->shared->u.atomic.prec);
}
} else if (H5T_SGN_2==src->shared->u.atomic.u.i.sign &&
H5T_SGN_NONE==dst->shared->u.atomic.u.i.sign) {
/*
* If the source is signed and the destination isn't then we
* can have overflow if the source contains more bits than
* the destination (destination is set to the maximum
* possible value) or overflow if the source is negative
* (destination is set to zero).
*/
if (first+1 == src->shared->u.atomic.prec) {
/*overflow - source is negative*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
H5T_reverse_order(src_rev, s, src->shared->size, src->shared->u.atomic.order); /*reverse order first*/
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW, src_id, dst_id,
src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
H5T__bit_set (d, dst->shared->u.atomic.offset, dst->shared->u.atomic.prec, FALSE);
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED)
/*Don't reverse because user handles it already*/
reverse = FALSE;
} else if (src->shared->u.atomic.prec < dst->shared->u.atomic.prec) {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset,
src->shared->u.atomic.prec-1);
H5T__bit_set (d, dst->shared->u.atomic.offset+src->shared->u.atomic.prec-1,
(dst->shared->u.atomic.prec-src->shared->u.atomic.prec)+1, FALSE);
} else if (first>=dst->shared->u.atomic.prec) {
/*overflow - source is positive*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
H5T_reverse_order(src_rev, s, src->shared->size, src->shared->u.atomic.order); /*reverse order first*/
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id,
src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED)
H5T__bit_set (d, dst->shared->u.atomic.offset, dst->shared->u.atomic.prec, TRUE);
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED)
/*Don't reverse because user handles it already*/
reverse = FALSE;
} else {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset,
dst->shared->u.atomic.prec);
}
} else if (H5T_SGN_NONE==src->shared->u.atomic.u.i.sign &&
H5T_SGN_2==dst->shared->u.atomic.u.i.sign) {
/*
* If the source is not signed but the destination is then
* overflow can occur in which case the destination is set to
* the largest possible value (all bits set except the msb).
*/
if (first+1 >= dst->shared->u.atomic.prec) {
/*overflow*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
H5T_reverse_order(src_rev, s, src->shared->size, src->shared->u.atomic.order); /*reverse order first*/
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id,
src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
H5T__bit_set(d, dst->shared->u.atomic.offset, dst->shared->u.atomic.prec-1, TRUE);
H5T__bit_set(d, (dst->shared->u.atomic.offset + dst->shared->u.atomic.prec-1), (size_t)1, FALSE);
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED)
/*Don't reverse because user handles it already*/
reverse = FALSE;
} else if (src->shared->u.atomic.prec<dst->shared->u.atomic.prec) {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset,
src->shared->u.atomic.prec);
H5T__bit_set (d, dst->shared->u.atomic.offset+src->shared->u.atomic.prec,
dst->shared->u.atomic.prec-src->shared->u.atomic.prec, FALSE);
} else {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset,
dst->shared->u.atomic.prec);
}
} else if (first+1 == src->shared->u.atomic.prec) {
/*
* Both the source and the destination are signed and the
* source value is negative. We could experience overflow
* if the destination isn't wide enough in which case the
* destination is set to a negative number with the largest
* possible magnitude.
*/
ssize_t sfz = H5T__bit_find (s, src->shared->u.atomic.offset,
src->shared->u.atomic.prec-1, H5T_BIT_MSB, FALSE);
size_t fz = (size_t)sfz;
if (sfz>=0 && fz+1>=dst->shared->u.atomic.prec) {
/*overflow*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
H5T_reverse_order(src_rev, s, src->shared->size, src->shared->u.atomic.order); /*reverse order first*/
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW, src_id, dst_id,
src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
H5T__bit_set(d, dst->shared->u.atomic.offset, dst->shared->u.atomic.prec-1, FALSE);
H5T__bit_set(d, (dst->shared->u.atomic.offset + dst->shared->u.atomic.prec-1), (size_t)1, TRUE);
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED)
/*Don't reverse because user handles it already*/
reverse = FALSE;
} else if (src->shared->u.atomic.prec<dst->shared->u.atomic.prec) {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset, src->shared->u.atomic.prec);
H5T__bit_set (d, dst->shared->u.atomic.offset+src->shared->u.atomic.prec, dst->shared->u.atomic.prec-src->shared->u.atomic.prec, TRUE);
} else {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset, dst->shared->u.atomic.prec);
}
} else {
/*
* Source and destination are both signed but the source
* value is positive. We could have an overflow in which
* case the destination is set to the largest possible
* positive value.
*/
if (first+1>=dst->shared->u.atomic.prec) {
/*overflow*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
H5T_reverse_order(src_rev, s, src->shared->size, src->shared->u.atomic.order); /*reverse order first*/
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id, src_rev, d,
cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
H5T__bit_set(d, dst->shared->u.atomic.offset, dst->shared->u.atomic.prec-1, TRUE);
H5T__bit_set(d, (dst->shared->u.atomic.offset + dst->shared->u.atomic.prec-1), (size_t)1, FALSE);
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED)
/*Don't reverse because user handles it already*/
reverse = FALSE;
} else if (src->shared->u.atomic.prec<dst->shared->u.atomic.prec) {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset,
src->shared->u.atomic.prec);
H5T__bit_set (d, dst->shared->u.atomic.offset+src->shared->u.atomic.prec,
dst->shared->u.atomic.prec-src->shared->u.atomic.prec, FALSE);
} else {
H5T__bit_copy (d, dst->shared->u.atomic.offset, s, src->shared->u.atomic.offset,
dst->shared->u.atomic.prec);
}
}
/*
* Set padding areas in destination.
*/
if (dst->shared->u.atomic.offset>0) {
HDassert(H5T_PAD_ZERO==dst->shared->u.atomic.lsb_pad || H5T_PAD_ONE==dst->shared->u.atomic.lsb_pad);
H5T__bit_set(d, (size_t)0, dst->shared->u.atomic.offset, (hbool_t)(H5T_PAD_ONE==dst->shared->u.atomic.lsb_pad));
}
if (dst->shared->u.atomic.offset+dst->shared->u.atomic.prec!=8*dst->shared->size) {
HDassert(H5T_PAD_ZERO==dst->shared->u.atomic.msb_pad || H5T_PAD_ONE==dst->shared->u.atomic.msb_pad);
H5T__bit_set (d, dst->shared->u.atomic.offset+dst->shared->u.atomic.prec,
8*dst->shared->size - (dst->shared->u.atomic.offset+ dst->shared->u.atomic.prec),
(hbool_t)(H5T_PAD_ONE==dst->shared->u.atomic.msb_pad));
}
/*
* Put the destination in the correct byte order. See note at
* beginning of loop.
*/
if (H5T_ORDER_BE==dst->shared->u.atomic.order && reverse) {
half_size = dst->shared->size/2;
for (i=0; i<half_size; i++) {
uint8_t tmp = d[dst->shared->size-(i+1)];
d[dst->shared->size-(i+1)] = d[i];
d[i] = tmp;
}
}
/*
* If we had used a temporary buffer for the destination then we
* should copy the value to the true destination buffer.
*/
if(d==dbuf)
H5MM_memcpy(dp, d, dst->shared->size);
/* Advance source & destination pointers by delta amounts */
sp += src_delta;
dp += dst_delta;
} /* end for */
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
if(src_rev)
H5MM_free(src_rev);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_i_i() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_f_f
*
* Purpose: Convert one floating point type to another. This is a catch
* all for floating point conversions and is probably not
* particularly fast!
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Tuesday, June 23, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_f_f(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
{
/* Traversal-related variables */
H5T_t *src_p; /*source datatype */
H5T_t *dst_p; /*destination datatype */
H5T_atomic_t src; /*atomic source info */
H5T_atomic_t dst; /*atomic destination info */
ssize_t src_delta, dst_delta; /*source & destination stride */
int direction; /*forward or backward traversal */
size_t elmtno; /*element number */
size_t half_size; /*half the type size */
size_t tsize; /*type size for swapping bytes */
size_t olap; /*num overlapping elements */
ssize_t bitno = 0; /*bit number */
uint8_t *s, *sp, *d, *dp; /*source and dest traversal ptrs*/
uint8_t *src_rev = NULL; /*order-reversed source buffer */
uint8_t dbuf[64]; /*temp destination buffer */
uint8_t tmp1, tmp2; /*temp variables for swapping bytes*/
/* Conversion-related variables */
int64_t expo; /*exponent */
hssize_t expo_max; /*maximum possible dst exponent */
size_t msize = 0; /*useful size of mantissa in src*/
size_t mpos; /*offset to useful mant is src */
uint64_t sign; /*source sign bit value */
size_t mrsh; /*amount to right shift mantissa*/
hbool_t carry = FALSE; /*carry after rounding mantissa */
size_t i; /*miscellaneous counters */
size_t implied; /*destination implied bits */
hbool_t denormalized = FALSE; /*is either source or destination denormalized?*/
H5T_conv_cb_t cb_struct = {NULL, NULL}; /*conversion callback structure */
H5T_conv_ret_t except_ret; /*return of callback function */
hbool_t reverse; /*if reverse the order of destination */
herr_t ret_value = SUCCEED; /*return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
if(NULL == (src_p = (H5T_t *)H5I_object(src_id)) || NULL == (dst_p = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
src = src_p->shared->u.atomic;
dst = dst_p->shared->u.atomic;
if(H5T_ORDER_LE != src.order && H5T_ORDER_BE != src.order && H5T_ORDER_VAX != src.order)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order")
if(H5T_ORDER_LE != dst.order && H5T_ORDER_BE != dst.order && H5T_ORDER_VAX != dst.order)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order")
if(dst_p->shared->size > sizeof(dbuf))
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "destination size is too large")
if(8 * sizeof(expo) - 1 < src.u.f.esize || 8 * sizeof(expo) - 1 < dst.u.f.esize)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "exponent field is too large")
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_FREE:
break;
case H5T_CONV_CONV:
/* Get the datatypes */
if(NULL == (src_p = (H5T_t *)H5I_object(src_id)) || NULL == (dst_p = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
src = src_p->shared->u.atomic;
dst = dst_p->shared->u.atomic;
expo_max = ((hssize_t)1 << dst.u.f.esize) - 1;
/*
* Do we process the values from beginning to end or vice versa? Also,
* how many of the elements have the source and destination areas
* overlapping?
*/
if (src_p->shared->size==dst_p->shared->size || buf_stride) {
sp = dp = (uint8_t*)buf;
direction = 1;
olap = nelmts;
}
else if (src_p->shared->size>=dst_p->shared->size) {
double olap_d = HDceil((double)(dst_p->shared->size)/
(double)(src_p->shared->size-dst_p->shared->size));
olap = (size_t)olap_d;
sp = dp = (uint8_t*)buf;
direction = 1;
}
else {
double olap_d = HDceil((double)(src_p->shared->size)/
(double)(dst_p->shared->size-src_p->shared->size));
olap = (size_t)olap_d;
sp = (uint8_t*)buf + (nelmts-1) * src_p->shared->size;
dp = (uint8_t*)buf + (nelmts-1) * dst_p->shared->size;
direction = -1;
}
/*
* Direction & size of buffer traversal.
*/
H5_CHECK_OVERFLOW(buf_stride, size_t, ssize_t);
H5_CHECK_OVERFLOW(src_p->shared->size, size_t, ssize_t);
H5_CHECK_OVERFLOW(dst_p->shared->size, size_t, ssize_t);
src_delta = (ssize_t)direction * (ssize_t)(buf_stride ? buf_stride : src_p->shared->size);
dst_delta = (ssize_t)direction * (ssize_t)(buf_stride ? buf_stride : dst_p->shared->size);
/* Get conversion exception callback property */
if(H5CX_get_dt_conv_cb(&cb_struct) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get conversion exception callback")
/* Allocate space for order-reversed source buffer */
src_rev = (uint8_t*)H5MM_calloc(src_p->shared->size);
/* The conversion loop */
for (elmtno=0; elmtno<nelmts; elmtno++) {
/* Set these variables to default */
except_ret = H5T_CONV_UNHANDLED;
reverse = TRUE;
/*
* If the source and destination buffers overlap then use a
* temporary buffer for the destination.
*/
if (direction>0) {
s = sp;
d = elmtno<olap ? dbuf : dp;
}
else {
s = sp;
d = elmtno+olap >= nelmts ? dbuf : dp;
}
#ifndef NDEBUG
/* I don't quite trust the overlap calculations yet --rpm */
if (d==dbuf) {
HDassert((dp>=sp && dp<sp+src_p->shared->size) ||
(sp>=dp && sp<dp+dst_p->shared->size));
}
else {
HDassert((dp<sp && dp+dst_p->shared->size<=sp) ||
(sp<dp && sp+src_p->shared->size<=dp));
}
#endif
/*
* Put the data in little endian order so our loops aren't so
* complicated. We'll do all the conversion stuff assuming
* little endian and then we'll fix the order at the end.
*/
if (H5T_ORDER_BE==src.order) {
half_size = src_p->shared->size/2;
for (i=0; i<half_size; i++) {
tmp1 = s[src_p->shared->size-(i+1)];
s[src_p->shared->size-(i+1)] = s[i];
s[i] = tmp1;
}
}
else if (H5T_ORDER_VAX==src.order) {
tsize = src_p->shared->size;
HDassert(0 == tsize % 2);
for (i = 0; i < tsize; i += 4) {
tmp1 = s[i];
tmp2 = s[i+1];
s[i] = s[(tsize-2)-i];
s[i+1] = s[(tsize-1)-i];
s[(tsize-2)-i] = tmp1;
s[(tsize-1)-i] = tmp2;
}
}
/*
* Find the sign bit value of the source.
*/
sign = H5T__bit_get_d(s, src.u.f.sign, (size_t)1);
/*
* Check for special cases: +0, -0, +Inf, -Inf, NaN
*/
if (H5T__bit_find (s, src.u.f.mpos, src.u.f.msize,
H5T_BIT_LSB, TRUE)<0) {
if (H5T__bit_find (s, src.u.f.epos, src.u.f.esize,
H5T_BIT_LSB, TRUE)<0) {
/* +0 or -0 */
H5T__bit_copy (d, dst.u.f.sign, s, src.u.f.sign, (size_t)1);
H5T__bit_set (d, dst.u.f.epos, dst.u.f.esize, FALSE);
H5T__bit_set (d, dst.u.f.mpos, dst.u.f.msize, FALSE);
goto padding;
}
else if (H5T__bit_find (s, src.u.f.epos, src.u.f.esize,
H5T_BIT_LSB, FALSE)<0) {
/* +Inf or -Inf */
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
if(sign)
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_NINF,
src_id, dst_id, src_rev, d, cb_struct.user_data);
else
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_PINF,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
H5T__bit_copy (d, dst.u.f.sign, s, src.u.f.sign, (size_t)1);
H5T__bit_set (d, dst.u.f.epos, dst.u.f.esize, TRUE);
H5T__bit_set (d, dst.u.f.mpos, dst.u.f.msize, FALSE);
/*If the destination no implied mantissa bit, we'll need to set
*the 1st bit of mantissa to 1. The Intel-Linux long double is
*this case.*/
if (H5T_NORM_NONE==dst.u.f.norm)
H5T__bit_set (d, dst.u.f.mpos+dst.u.f.msize-1, (size_t)1, TRUE);
}
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
}
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
goto padding;
}
}
else if (H5T_NORM_NONE==src.u.f.norm && H5T__bit_find (s, src.u.f.mpos, src.u.f.msize-1,
H5T_BIT_LSB, TRUE)<0 && H5T__bit_find (s, src.u.f.epos, src.u.f.esize,
H5T_BIT_LSB, FALSE)<0) {
/*This is a special case for the source of no implied mantissa bit.
*If the exponent bits are all 1s and only the 1st bit of mantissa
*is set to 1. It's infinity. The Intel-Linux "long double" is this case.*/
/* +Inf or -Inf */
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
if(sign)
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_NINF,
src_id, dst_id, src_rev, d, cb_struct.user_data);
else
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_PINF,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
H5T__bit_copy (d, dst.u.f.sign, s, src.u.f.sign, (size_t)1);
H5T__bit_set (d, dst.u.f.epos, dst.u.f.esize, TRUE);
H5T__bit_set (d, dst.u.f.mpos, dst.u.f.msize, FALSE);
/*If the destination no implied mantissa bit, we'll need to set
*the 1st bit of mantissa to 1. The Intel-Linux long double is
*this case.*/
if (H5T_NORM_NONE==dst.u.f.norm)
H5T__bit_set (d, dst.u.f.mpos+dst.u.f.msize-1, (size_t)1, TRUE);
}
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
}
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
goto padding;
/* Temporary solution to handle VAX special values.
* Note that even though we don't support VAX anymore, we
* still need to handle legacy VAX files so this code must
* remain in place.
*/
}
else if (H5T__bit_find (s, src.u.f.epos, src.u.f.esize,
H5T_BIT_LSB, FALSE)<0) {
/* NaN */
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_NAN,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
/* There are many NaN values, so we just set all bits of
* the significand. */
H5T__bit_copy (d, dst.u.f.sign, s, src.u.f.sign, (size_t)1);
H5T__bit_set (d, dst.u.f.epos, dst.u.f.esize, TRUE);
H5T__bit_set(d, dst.u.f.mpos, dst.u.f.msize, TRUE);
}
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
}
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
goto padding;
}
/*
* Get the exponent as an unsigned quantity from the section of
* the source bit field where it's located. Don't worry about
* the exponent bias yet.
*/
expo = (int64_t)H5T__bit_get_d(s, src.u.f.epos, src.u.f.esize);
if (expo==0)
denormalized=TRUE;
/*
* Set markers for the source mantissa, excluding the leading `1'
* (might be implied).
*/
implied = 1;
mpos = src.u.f.mpos;
mrsh = 0;
if (0 == expo || H5T_NORM_NONE == src.u.f.norm) {
if ((bitno = H5T__bit_find(s, src.u.f.mpos, src.u.f.msize, H5T_BIT_MSB, TRUE)) > 0) {
msize = (size_t)bitno;
}
else if (0==bitno) {
msize = 1;
H5T__bit_set(s, src.u.f.mpos, (size_t)1, FALSE);
}
}
else if (H5T_NORM_IMPLIED==src.u.f.norm) {
msize = src.u.f.msize;
}
else {
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "normalization method not implemented yet")
}
/*
* The sign for the destination is the same as the sign for the
* source in all cases.
*/
H5T__bit_copy (d, dst.u.f.sign, s, src.u.f.sign, (size_t)1);
/*
* Calculate the true source exponent by adjusting according to
* the source exponent bias.
*/
if (0==expo || H5T_NORM_NONE==src.u.f.norm) {
HDassert(bitno>=0);
expo -= (int64_t)((src.u.f.ebias - 1) + (src.u.f.msize - (size_t)bitno));
}
else if (H5T_NORM_IMPLIED==src.u.f.norm) {
expo -= (int64_t)src.u.f.ebias;
}
else {
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "normalization method not implemented yet")
}
/*
* If the destination is not normalized then right shift the
* mantissa by one.
*/
if (H5T_NORM_NONE==dst.u.f.norm)
mrsh++;
/*
* Calculate the destination exponent by adding the destination
* bias and clipping by the minimum and maximum possible
* destination exponent values.
*/
expo += (int64_t)dst.u.f.ebias;
if (expo < -(hssize_t)(dst.u.f.msize)) {
/* The exponent is way too small. Result is zero. */
expo = 0;
H5T__bit_set(d, dst.u.f.mpos, dst.u.f.msize, FALSE);
msize = 0;
}
else if (expo<=0) {
/*
* The exponent is too small to fit in the exponent field,
* but by shifting the mantissa to the right we can
* accommodate that value. The mantissa of course is no
* longer normalized.
*/
mrsh += (size_t)(1 - expo);
expo = 0;
denormalized=TRUE;
}
else if (expo>=expo_max) {
/*
* The exponent is too large to fit in the available region
* or it results in the maximum possible value. Use positive
* or negative infinity instead unless the application
* specifies something else. Before calling the overflow
* handler make sure the source buffer we hand it is in the
* original byte order.
*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id,
src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
expo = expo_max;
H5T__bit_set(d, dst.u.f.mpos, dst.u.f.msize, FALSE);
msize = 0;
}
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED) {
reverse = FALSE;
goto next;
}
}
/*
* If the destination mantissa is smaller than the source
* mantissa then round the source mantissa. Rounding may cause a
* carry in which case the exponent has to be re-evaluated for
* overflow. That is, if `carry' is clear then the implied
* mantissa bit is `1', else it is `10' binary.
*/
if (msize>0 && mrsh<=dst.u.f.msize && mrsh+msize>dst.u.f.msize) {
bitno = (ssize_t)(mrsh + msize - dst.u.f.msize);
HDassert(bitno >= 0 && (size_t)bitno <= msize);
/* If the 1st bit being cut off is set and source isn't denormalized.*/
if(H5T__bit_get_d(s, (mpos + (size_t)bitno) - 1, (size_t)1) && !denormalized) {
/* Don't do rounding if exponent is 111...110 and mantissa is 111...11.
* To do rounding and increment exponent in this case will create an infinity value.*/
if((H5T__bit_find(s, mpos + (size_t)bitno, msize - (size_t)bitno, H5T_BIT_LSB, FALSE) >= 0 || expo < expo_max - 1)) {
carry = H5T__bit_inc(s, mpos + (size_t)bitno - 1, 1 + msize - (size_t)bitno);
if(carry)
implied = 2;
}
}
else if(H5T__bit_get_d(s, (mpos + (size_t)bitno) - 1, (size_t)1) && denormalized)
/* For either source or destination, denormalized value doesn't increment carry.*/
H5T__bit_inc(s, mpos + (size_t)bitno - 1, 1 + msize - (size_t)bitno);
}
else
carry = FALSE;
/*
* Write the mantissa to the destination
*/
if (mrsh>dst.u.f.msize+1) {
H5T__bit_set(d, dst.u.f.mpos, dst.u.f.msize, FALSE);
}
else if (mrsh==dst.u.f.msize+1) {
H5T__bit_set(d, dst.u.f.mpos+1, dst.u.f.msize-1, FALSE);
H5T__bit_set(d, dst.u.f.mpos, (size_t)1, TRUE);
}
else if (mrsh==dst.u.f.msize) {
H5T__bit_set(d, dst.u.f.mpos, dst.u.f.msize, FALSE);
H5T__bit_set_d(d, dst.u.f.mpos, MIN(2, dst.u.f.msize), (hsize_t)implied);
}
else {
if (mrsh>0) {
H5T__bit_set(d, dst.u.f.mpos+dst.u.f.msize-mrsh, mrsh,
FALSE);
H5T__bit_set_d(d, dst.u.f.mpos+dst.u.f.msize-mrsh, (size_t)2,
(hsize_t)implied);
}
if (mrsh+msize>=dst.u.f.msize) {
H5T__bit_copy(d, dst.u.f.mpos,
s, (mpos+msize+mrsh-dst.u.f.msize),
dst.u.f.msize-mrsh);
}
else {
H5T__bit_copy(d, dst.u.f.mpos+dst.u.f.msize-(mrsh+msize),
s, mpos, msize);
H5T__bit_set(d, dst.u.f.mpos, dst.u.f.msize-(mrsh+msize),
FALSE);
}
}
/* Write the exponent */
if (carry) {
expo++;
if (expo>=expo_max) {
/*
* The exponent is too large to fit in the available
* region or it results in the maximum possible value.
* Use positive or negative infinity instead unless the
* application specifies something else. Before
* calling the overflow handler make sure the source
* buffer we hand it is in the original byte order.
*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id,
src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
expo = expo_max;
H5T__bit_set(d, dst.u.f.mpos, dst.u.f.msize, FALSE);
}
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED) {
reverse = FALSE;
goto next;
}
}
}
/*reset CARRY*/
carry = FALSE;
H5_CHECK_OVERFLOW(expo,hssize_t,hsize_t);
H5T__bit_set_d(d, dst.u.f.epos, dst.u.f.esize, (hsize_t)expo);
padding:
/*
* Set external padding areas
*/
if (dst.offset>0) {
HDassert(H5T_PAD_ZERO==dst.lsb_pad || H5T_PAD_ONE==dst.lsb_pad);
H5T__bit_set (d, (size_t)0, dst.offset, (hbool_t)(H5T_PAD_ONE==dst.lsb_pad));
}
if (dst.offset+dst.prec!=8*dst_p->shared->size) {
HDassert(H5T_PAD_ZERO==dst.msb_pad || H5T_PAD_ONE==dst.msb_pad);
H5T__bit_set (d, dst.offset+dst.prec, 8*dst_p->shared->size - (dst.offset+dst.prec),
(hbool_t)(H5T_PAD_ONE==dst.msb_pad));
}
/*
* Put the destination in the correct byte order. See note at
* beginning of loop.
*/
if (H5T_ORDER_BE==dst.order && reverse) {
half_size = dst_p->shared->size/2;
for (i=0; i<half_size; i++) {
uint8_t tmp = d[dst_p->shared->size-(i+1)];
d[dst_p->shared->size-(i+1)] = d[i];
d[i] = tmp;
}
} else if (H5T_ORDER_VAX==dst.order && reverse) {
tsize = dst_p->shared->size;
HDassert(0 == tsize % 2);
for (i = 0; i < tsize; i += 4) {
tmp1 = d[i];
tmp2 = d[i+1];
d[i] = d[(tsize-2)-i];
d[i+1] = d[(tsize-1)-i];
d[(tsize-2)-i] = tmp1;
d[(tsize-1)-i] = tmp2;
}
}
/*
* If we had used a temporary buffer for the destination then we
* should copy the value to the true destination buffer.
*/
next:
if(d == dbuf)
H5MM_memcpy(dp, d, dst_p->shared->size);
/* Advance source & destination pointers by delta amounts */
sp += src_delta;
dp += dst_delta;
}
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
if(src_rev)
H5MM_free(src_rev);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_f_f() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_s_s
*
* Purpose: Convert one fixed-length string type to another.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Friday, August 7, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_s_s(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf,
void H5_ATTR_UNUSED *bkg)
{
H5T_t *src=NULL; /*source datatype */
H5T_t *dst=NULL; /*destination datatype */
ssize_t src_delta, dst_delta; /*source & destination stride */
int direction; /*direction of traversal */
size_t elmtno; /*element number */
size_t olap; /*num overlapping elements */
size_t nchars=0; /*number of characters copied */
uint8_t *s, *sp, *d, *dp; /*src and dst traversal pointers*/
uint8_t *dbuf=NULL; /*temp buf for overlap convers. */
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
if(8 * src->shared->size != src->shared->u.atomic.prec || 8 * dst->shared->size != dst->shared->u.atomic.prec)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "bad precision")
if(0 != src->shared->u.atomic.offset || 0 != dst->shared->u.atomic.offset)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "bad offset")
if(H5T_CSET_ASCII != src->shared->u.atomic.u.s.cset && H5T_CSET_UTF8 != src->shared->u.atomic.u.s.cset)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "bad source character set")
if(H5T_CSET_ASCII != dst->shared->u.atomic.u.s.cset && H5T_CSET_UTF8 != dst->shared->u.atomic.u.s.cset)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "bad destination character set")
if((H5T_CSET_ASCII == src->shared->u.atomic.u.s.cset && H5T_CSET_UTF8 == dst->shared->u.atomic.u.s.cset)
|| (H5T_CSET_ASCII == dst->shared->u.atomic.u.s.cset && H5T_CSET_UTF8 == src->shared->u.atomic.u.s.cset))
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "The library doesn't convert between strings of ASCII and UTF")
if(src->shared->u.atomic.u.s.pad < 0 || src->shared->u.atomic.u.s.pad >= H5T_NSTR ||
dst->shared->u.atomic.u.s.pad < 0 || dst->shared->u.atomic.u.s.pad >= H5T_NSTR)
HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "bad character padding")
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_FREE:
break;
case H5T_CONV_CONV:
/* Get the datatypes */
if(NULL == (src = (H5T_t *)H5I_object(src_id)) || NULL == (dst = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
/*
* Do we process the values from beginning to end or vice versa? Also,
* how many of the elements have the source and destination areas
* overlapping?
*/
if (src->shared->size==dst->shared->size || buf_stride) {
/*
* When the source and destination are the same size we can do
* all the conversions in place.
*/
sp = dp = (uint8_t*)buf;
direction = 1;
olap = 0;
} else if (src->shared->size>=dst->shared->size) {
double olapd = HDceil((double)(dst->shared->size)/
(double)(src->shared->size-dst->shared->size));
olap = (size_t)olapd;
sp = dp = (uint8_t*)buf;
direction = 1;
} else {
double olapd = HDceil((double)(src->shared->size)/
(double)(dst->shared->size-src->shared->size));
olap = (size_t)olapd;
sp = (uint8_t*)buf + (nelmts-1) * src->shared->size;
dp = (uint8_t*)buf + (nelmts-1) * dst->shared->size;
direction = -1;
}
/*
* Direction & size of buffer traversal.
*/
H5_CHECK_OVERFLOW(buf_stride, size_t, ssize_t);
H5_CHECK_OVERFLOW(src->shared->size, size_t, ssize_t);
H5_CHECK_OVERFLOW(dst->shared->size, size_t, ssize_t);
src_delta = (ssize_t)direction * (ssize_t)(buf_stride ? buf_stride : src->shared->size);
dst_delta = (ssize_t)direction * (ssize_t)(buf_stride ? buf_stride : dst->shared->size);
/* Allocate the overlap buffer */
if(NULL == (dbuf = (uint8_t *)H5MM_malloc(dst->shared->size)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for string conversion")
/* The conversion loop. */
for(elmtno = 0; elmtno < nelmts; elmtno++) {
/*
* If the source and destination buffers overlap then use a
* temporary buffer for the destination.
*/
if(direction > 0) {
s = sp;
d = elmtno < olap ? dbuf : dp;
} else {
s = sp;
d = elmtno + olap >= nelmts ? dbuf : dp;
}
#ifndef NDEBUG
/* I don't quite trust the overlap calculations yet --rpm */
if (src->shared->size==dst->shared->size || buf_stride) {
HDassert(s==d);
} else if (d==dbuf) {
HDassert((dp>=sp && dp<sp+src->shared->size) ||
(sp>=dp && sp<dp+dst->shared->size));
} else {
HDassert((dp<sp && dp+dst->shared->size<=sp) ||
(sp<dp && sp+src->shared->size<=dp));
}
#endif
/* Copy characters from source to destination */
switch(src->shared->u.atomic.u.s.pad) {
case H5T_STR_NULLTERM:
for (nchars=0;
nchars<dst->shared->size && nchars<src->shared->size && s[nchars];
nchars++) {
d[nchars] = s[nchars];
}
break;
case H5T_STR_NULLPAD:
for (nchars=0;
nchars<dst->shared->size && nchars<src->shared->size && s[nchars];
nchars++) {
d[nchars] = s[nchars];
}
break;
case H5T_STR_SPACEPAD:
nchars = src->shared->size;
while (nchars>0 && ' '==s[nchars-1])
--nchars;
nchars = MIN(dst->shared->size, nchars);
if(d != s)
H5MM_memcpy(d, s, nchars);
break;
case H5T_STR_RESERVED_3:
case H5T_STR_RESERVED_4:
case H5T_STR_RESERVED_5:
case H5T_STR_RESERVED_6:
case H5T_STR_RESERVED_7:
case H5T_STR_RESERVED_8:
case H5T_STR_RESERVED_9:
case H5T_STR_RESERVED_10:
case H5T_STR_RESERVED_11:
case H5T_STR_RESERVED_12:
case H5T_STR_RESERVED_13:
case H5T_STR_RESERVED_14:
case H5T_STR_RESERVED_15:
case H5T_STR_ERROR:
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "source string padding method not supported")
} /* end switch */
/* Terminate or pad the destination */
switch(dst->shared->u.atomic.u.s.pad) {
case H5T_STR_NULLTERM:
while(nchars < dst->shared->size)
d[nchars++] = '\0';
d[dst->shared->size - 1] = '\0';
break;
case H5T_STR_NULLPAD:
while(nchars < dst->shared->size)
d[nchars++] = '\0';
break;
case H5T_STR_SPACEPAD:
while(nchars < dst->shared->size)
d[nchars++] = ' ';
break;
case H5T_STR_RESERVED_3:
case H5T_STR_RESERVED_4:
case H5T_STR_RESERVED_5:
case H5T_STR_RESERVED_6:
case H5T_STR_RESERVED_7:
case H5T_STR_RESERVED_8:
case H5T_STR_RESERVED_9:
case H5T_STR_RESERVED_10:
case H5T_STR_RESERVED_11:
case H5T_STR_RESERVED_12:
case H5T_STR_RESERVED_13:
case H5T_STR_RESERVED_14:
case H5T_STR_RESERVED_15:
case H5T_STR_ERROR:
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "destination string padding method not supported")
} /* end switch */
/*
* If we used a temporary buffer for the destination then we
* should copy the value to the true destination buffer.
*/
if(d == dbuf)
H5MM_memcpy(dp, d, dst->shared->size);
/* Advance source & destination pointers by delta amounts */
sp += src_delta;
dp += dst_delta;
} /* end for */
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown converson command")
} /* end switch */
done:
H5MM_xfree(dbuf);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_s_s() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_uchar
*
* Purpose: Converts `signed char' to `unsigned char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_uchar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_su(SCHAR, UCHAR, signed char, unsigned char, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_schar
*
* Purpose: Converts `unsigned char' to `signed char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_schar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_us(UCHAR, SCHAR, unsigned char, signed char, -, SCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_short
*
* Purpose: Converts `signed char' to `short'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_short(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(SCHAR, SHORT, signed char, short, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_ushort
*
* Purpose: Converts `signed char' to `unsigned short'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_ushort(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(SCHAR, USHORT, signed char, unsigned short, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_short
*
* Purpose: Converts `unsigned char' to `short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_short(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(UCHAR, SHORT, unsigned char, short, -, SHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_ushort
*
* Purpose: Converts `unsigned char' to `unsigned short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_ushort(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(UCHAR, USHORT, unsigned char, unsigned short, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_int
*
* Purpose: Converts `signed char' to `int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_int(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(SCHAR, INT, signed char, int, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_uint
*
* Purpose: Converts `signed char' to `unsigned int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_uint(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(SCHAR, UINT, signed char, unsigned, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_int
*
* Purpose: Converts `unsigned char' to `int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_int(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(UCHAR, INT, unsigned char, int, -, INT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_uint
*
* Purpose: Converts `unsigned char' to `unsigned int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_uint(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(UCHAR, UINT, unsigned char, unsigned, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_long
*
* Purpose: Converts `signed char' to `long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_long(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(SCHAR, LONG, signed char, long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_ulong
*
* Purpose: Converts `signed char' to `unsigned long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_ulong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(SCHAR, ULONG, signed char, unsigned long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_long
*
* Purpose: Converts `unsigned char' to `long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_long(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(UCHAR, LONG, unsigned char, long, -, LONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_ulong
*
* Purpose: Converts `unsigned char' to `unsigned long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_ulong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(UCHAR, ULONG, unsigned char, unsigned long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_llong
*
* Purpose: Converts `signed char' to `long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(SCHAR, LLONG, signed char, long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_ullong
*
* Purpose: Converts `signed char' to `unsigned long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(SCHAR, ULLONG, signed char, unsigned long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_llong
*
* Purpose: Converts `unsigned char' to `long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(UCHAR, LLONG, unsigned char, long long, -, LLONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_ullong
*
* Purpose: Converts `unsigned char' to `unsigned long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(UCHAR, ULLONG, unsigned char, unsigned long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_schar
*
* Purpose: Converts `short' to `signed char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_schar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(SHORT, SCHAR, short, signed char, SCHAR_MIN, SCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_uchar
*
* Purpose: Converts `short' to `unsigned char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_uchar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(SHORT, UCHAR, short, unsigned char, -, UCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_schar
*
* Purpose: Converts `unsigned short' to `signed char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_schar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(USHORT, SCHAR, unsigned short, signed char, -, SCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_uchar
*
* Purpose: Converts `unsigned short' to `unsigned char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_uchar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(USHORT, UCHAR, unsigned short, unsigned char, -, UCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_ushort
*
* Purpose: Converts `short' to `unsigned short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_ushort(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_su(SHORT, USHORT, short, unsigned short, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_short
*
* Purpose: Converts `unsigned short' to `short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_short(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_us(USHORT, SHORT, unsigned short, short, -, SHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_int
*
* Purpose: Converts `short' to `int'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_int(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(SHORT, INT, short, int, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_uint
*
* Purpose: Converts `short' to `unsigned int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_uint(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(SHORT, UINT, short, unsigned, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_int
*
* Purpose: Converts `unsigned short' to `int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_int(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(USHORT, INT, unsigned short, int, -, INT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_uint
*
* Purpose: Converts `unsigned short' to `unsigned int'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_uint(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(USHORT, UINT, unsigned short, unsigned, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_long
*
* Purpose: Converts `short' to `long'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_long(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(SHORT, LONG, short, long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_ulong
*
* Purpose: Converts `short' to `unsigned long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_ulong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(SHORT, ULONG, short, unsigned long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_long
*
* Purpose: Converts `unsigned short' to `long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_long(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(USHORT, LONG, unsigned short, long, -, LONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_ulong
*
* Purpose: Converts `unsigned short' to `unsigned long'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_ulong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(USHORT, ULONG, unsigned short, unsigned long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_llong
*
* Purpose: Converts `short' to `long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(SHORT, LLONG, short, long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_ullong
*
* Purpose: Converts `short' to `unsigned long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(SHORT, ULLONG, short, unsigned long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_llong
*
* Purpose: Converts `unsigned short' to `long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(USHORT, LLONG, unsigned short, long long, -, LLONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_ullong
*
* Purpose: Converts `unsigned short' to `unsigned long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(USHORT, ULLONG, unsigned short, unsigned long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_schar
*
* Purpose: Converts `int' to `signed char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_schar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(INT, SCHAR, int, signed char, SCHAR_MIN, SCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_uchar
*
* Purpose: Converts `int' to `unsigned char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_uchar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(INT, UCHAR, int, unsigned char, -, UCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_schar
*
* Purpose: Converts `unsigned int' to `signed char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_schar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(UINT, SCHAR, unsigned, signed char, -, SCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_uchar
*
* Purpose: Converts `unsigned int' to `unsigned char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_uchar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(UINT, UCHAR, unsigned, unsigned char, -, UCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_short
*
* Purpose: Converts `int' to `short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_short(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(INT, SHORT, int, short, SHRT_MIN, SHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_ushort
*
* Purpose: Converts `int' to `unsigned short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_ushort(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(INT, USHORT, int, unsigned short, -, USHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_short
*
* Purpose: Converts `unsigned int' to `short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_short(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(UINT, SHORT, unsigned, short, -, SHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_ushort
*
* Purpose: Converts `unsigned int' to `unsigned short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_ushort(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(UINT, USHORT, unsigned, unsigned short, -, USHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_uint
*
* Purpose: Converts `int' to `unsigned int'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_uint(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_su(INT, UINT, int, unsigned, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_int
*
* Purpose: Converts `unsigned int' to `int'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_int(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_us(UINT, INT, unsigned, int, -, INT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_long
*
* Purpose: Converts `int' to `long'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_long(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(INT, LONG, int, long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_ulong
*
* Purpose: Converts `int' to `unsigned long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_ulong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(INT, LONG, int, unsigned long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_long
*
* Purpose: Converts `unsigned int' to `long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_long(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(UINT, LONG, unsigned, long, -, LONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_ulong
*
* Purpose: Converts `unsigned int' to `unsigned long'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_ulong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(UINT, ULONG, unsigned, unsigned long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_llong
*
* Purpose: Converts `int' to `long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(INT, LLONG, int, long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_ullong
*
* Purpose: Converts `int' to `unsigned long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(INT, ULLONG, int, unsigned long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_llong
*
* Purpose: Converts `unsigned int' to `long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(UINT, LLONG, unsigned, long long, -, LLONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_ullong
*
* Purpose: Converts `unsigned int' to `unsigned long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(UINT, ULLONG, unsigned, unsigned long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_schar
*
* Purpose: Converts `long' to `signed char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_schar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(LONG, SCHAR, long, signed char, SCHAR_MIN, SCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_uchar
*
* Purpose: Converts `long' to `unsigned char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_uchar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(LONG, UCHAR, long, unsigned char, -, UCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_schar
*
* Purpose: Converts `unsigned long' to `signed char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_schar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(ULONG, SCHAR, unsigned long, signed char, -, SCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_uchar
*
* Purpose: Converts `unsigned long' to `unsigned char'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_uchar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(ULONG, UCHAR, unsigned long, unsigned char, -, UCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_short
*
* Purpose: Converts `long' to `short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_short(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(LONG, SHORT, long, short, SHRT_MIN, SHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_ushort
*
* Purpose: Converts `long' to `unsigned short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_ushort(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(LONG, USHORT, long, unsigned short, -, USHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_short
*
* Purpose: Converts `unsigned long' to `short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_short(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(ULONG, SHORT, unsigned long, short, -, SHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_ushort
*
* Purpose: Converts `unsigned long' to `unsigned short'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_ushort(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(ULONG, USHORT, unsigned long, unsigned short, -, USHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_int
*
* Purpose: Converts `long' to `int'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_int(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(LONG, INT, long, int, INT_MIN, INT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_uint
*
* Purpose: Converts `long' to `unsigned int'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_uint(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(LONG, UINT, long, unsigned, -, UINT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_int
*
* Purpose: Converts `unsigned long' to `int'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_int(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(ULONG, INT, unsigned long, int, -, INT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_uint
*
* Purpose: Converts `unsigned long' to `unsigned int'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_uint(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(ULONG, UINT, unsigned long, unsigned, -, UINT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_ulong
*
* Purpose: Converts `long' to `unsigned long'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_ulong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_su(LONG, ULONG, long, unsigned long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_long
*
* Purpose: Converts `unsigned long' to `long'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_long(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_us(ULONG, LONG, unsigned long, long, -, LONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_llong
*
* Purpose: Converts `long' to `long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sS(LONG, LLONG, long, long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_ullong
*
* Purpose: Converts `long' to `unsigned long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_sU(LONG, ULLONG, long, unsigned long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_llong
*
* Purpose: Converts `unsigned long' to `long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uS(ULONG, LLONG, unsigned long, long long, -, LLONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_ullong
*
* Purpose: Converts `unsigned long' to `unsigned long long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_uU(ULONG, ULLONG, unsigned long, unsigned long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_schar
*
* Purpose: Converts `long long' to `signed char'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_schar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(LLONG, SCHAR, long long, signed char, SCHAR_MIN, SCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_uchar
*
* Purpose: Converts `long long' to `unsigned char'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_uchar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(LLONG, UCHAR, long long, unsigned char, -, UCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_schar
*
* Purpose: Converts `unsigned long long' to `signed char'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_schar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(ULLONG, SCHAR, unsigned long long, signed char, -, SCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_uchar
*
* Purpose: Converts `unsigned long long' to `unsigned char'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_uchar(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(ULLONG, UCHAR, unsigned long long, unsigned char, -, UCHAR_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_short
*
* Purpose: Converts `long long' to `short'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_short(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(LLONG, SHORT, long long, short, SHRT_MIN, SHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_ushort
*
* Purpose: Converts `long long' to `unsigned short'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_ushort(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(LLONG, USHORT, long long, unsigned short, -, USHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_short
*
* Purpose: Converts `unsigned long long' to `short'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_short(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(ULLONG, SHORT, unsigned long long, short, -, SHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_ushort
*
* Purpose: Converts `unsigned long long' to `unsigned short'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_ushort(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(ULLONG, USHORT, unsigned long long, unsigned short, -, USHRT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_int
*
* Purpose: Converts `long long' to `int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_int(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(LLONG, INT, long long, int, INT_MIN, INT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_uint
*
* Purpose: Converts `long long' to `unsigned int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_uint(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(LLONG, UINT, long long, unsigned, -, UINT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_int
*
* Purpose: Converts `unsigned long long' to `int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_int(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(ULLONG, INT, unsigned long long, int, -, INT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_uint
*
* Purpose: Converts `unsigned long long' to `unsigned int'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_uint(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(ULLONG, UINT, unsigned long long, unsigned, -, UINT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_long
*
* Purpose: Converts `long long' to `long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_long(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ss(LLONG, LONG, long long, long, LONG_MIN, LONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_ulong
*
* Purpose: Converts `long long' to `unsigned long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_ulong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Su(LLONG, ULONG, long long, unsigned long, -, ULONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_long
*
* Purpose: Converts `unsigned long long' to `long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_long(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Us(ULLONG, LONG, unsigned long long, long, -, LONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_ulong
*
* Purpose: Converts `unsigned long long' to `unsigned long'
*
* Return: Success: Non-negative
*
* Failure: Negative
*
* Programmer: Robb Matzke
* Friday, November 13, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_ulong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Uu(ULLONG, ULONG, unsigned long long, unsigned long, -, ULONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_ullong
*
* Purpose: Converts `long long' to `unsigned long long'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_ullong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_su(LLONG, ULLONG, long long, unsigned long long, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_llong
*
* Purpose: Converts `unsigned long long' to `long long'
*
* Return: Success: non-negative
*
* Failure: negative
*
* Programmer: Robb Matzke
* Monday, November 16, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_llong(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_us(ULLONG, LLONG, unsigned long long, long long, -, LLONG_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_double
*
* Purpose: Convert native `float' to native `double' using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Tuesday, June 23, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_fF(FLOAT, DOUBLE, float, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_ldouble
*
* Purpose: Convert native `float' to native `long double' using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, Feb 25, 2005
*
*-------------------------------------------------------------------------
*/
#if H5_SIZEOF_LONG_DOUBLE != 0
herr_t
H5T__conv_float_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_fF(FLOAT, LDOUBLE, float, long double, -, -);
}
#endif /* H5_SIZEOF_LONG_DOUBLE != 0 */
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_float
*
* Purpose: Convert native `double' to native `float' using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Tuesday, June 23, 1998
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ff(DOUBLE, FLOAT, double, float, -FLT_MAX, FLT_MAX);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_ldouble
*
* Purpose: Convert native `double' to native `long double' using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, Feb 25, 2005
*
*-------------------------------------------------------------------------
*/
#if H5_SIZEOF_LONG_DOUBLE != 0
herr_t
H5T__conv_double_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_fF(DOUBLE, LDOUBLE, double, long double, -, -);
}
#endif /* H5_SIZEOF_LONG_DOUBLE != 0 */
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_float
*
* Purpose: Convert native `long double' to native `float' using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, Feb 25, 2005
*
*-------------------------------------------------------------------------
*/
#if H5_SIZEOF_LONG_DOUBLE != 0
herr_t
H5T__conv_ldouble_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ff(LDOUBLE, FLOAT, long double, float, -FLT_MAX, FLT_MAX);
}
#endif /* H5_SIZEOF_LONG_DOUBLE != 0 */
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_double
*
* Purpose: Convert native `long double' to native `double' using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, Feb 25, 2005
*
*-------------------------------------------------------------------------
*/
#if H5_SIZEOF_LONG_DOUBLE != 0
herr_t
H5T__conv_ldouble_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_Ff(LDOUBLE, DOUBLE, long double, double, -DBL_MAX, DBL_MAX);
}
#endif /* H5_SIZEOF_LONG_DOUBLE != 0 */
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_float
*
* Purpose: Convert native signed char to native float using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(SCHAR, FLOAT, signed char, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_double
*
* Purpose: Convert native signed char to native double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(SCHAR, DOUBLE, signed char, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_schar_ldouble
*
* Purpose: Convert native signed char to native long double using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_schar_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(SCHAR, LDOUBLE, signed char, long double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_float
*
* Purpose: Convert native unsigned char to native float using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(UCHAR, FLOAT, unsigned char, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_double
*
* Purpose: Convert native unsigned char to native double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(UCHAR, DOUBLE, unsigned char, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uchar_ldouble
*
* Purpose: Convert native unsigned char to native long double using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uchar_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(UCHAR, LDOUBLE, unsigned char, long double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_float
*
* Purpose: Convert native short to native float using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(SHORT, FLOAT, short, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_double
*
* Purpose: Convert native short to native double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(SHORT, DOUBLE, short, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_short_ldouble
*
* Purpose: Convert native short to native long double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_short_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(SHORT, LDOUBLE, short, long double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_float
*
* Purpose: Convert native unsigned short to native float using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(USHORT, FLOAT, unsigned short, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_double
*
* Purpose: Convert native unsigned short to native double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(USHORT, DOUBLE, unsigned short, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ushort_ldouble
*
* Purpose: Convert native unsigned short to native long double using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ushort_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(USHORT, LDOUBLE, unsigned short, long double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_float
*
* Purpose: Convert native integer to native float using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(INT, FLOAT, int, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_double
*
* Purpose: Convert native integer to native double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(INT, DOUBLE, int, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_int_ldouble
*
* Purpose: Convert native integer to native long double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_int_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(INT, LDOUBLE, int, long double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_float
*
* Purpose: Convert native unsigned integer to native float using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(UINT, FLOAT, unsigned int, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_double
*
* Purpose: Convert native unsigned integer to native double using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(UINT, DOUBLE, unsigned int, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_uint_ldouble
*
* Purpose: Convert native unsigned integer to native long double using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_uint_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(UINT, LDOUBLE, unsigned int, long double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_float
*
* Purpose: Convert native long to native float using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(LONG, FLOAT, long, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_double
*
* Purpose: Convert native long to native double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(LONG, DOUBLE, long, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_long_ldouble
*
* Purpose: Convert native long to native long double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_long_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(LONG, LDOUBLE, long, long double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_float
*
* Purpose: Convert native unsigned long to native float using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(ULONG, FLOAT, unsigned long, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_double
*
* Purpose: Convert native unsigned long to native double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(ULONG, DOUBLE, unsigned long, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ulong_ldouble
*
* Purpose: Convert native unsigned long to native long double using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ulong_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(ULONG, LDOUBLE, unsigned long, long double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_float
*
* Purpose: Convert native long long to native float using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(LLONG, FLOAT, long long, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_double
*
* Purpose: Convert native long long to native double using hardware.
* This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_llong_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(LLONG, DOUBLE, long long, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_llong_ldouble
*
* Purpose: Convert native long long to native long double using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
#ifdef H5T_CONV_INTERNAL_LLONG_LDOUBLE
herr_t
H5T__conv_llong_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(LLONG, LDOUBLE, long long, long double, -, -);
}
#endif /* H5T_CONV_INTERNAL_LLONG_LDOUBLE */
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_float
*
* Purpose: Convert native unsigned long long to native float using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_float (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(ULLONG, FLOAT, unsigned long long, float, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_double
*
* Purpose: Convert native unsigned long long to native double using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ullong_double (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(ULLONG, DOUBLE, unsigned long long, double, -, -);
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ullong_ldouble
*
* Purpose: Convert native unsigned long long to native long double using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
#ifdef H5T_CONV_INTERNAL_ULLONG_LDOUBLE
herr_t
H5T__conv_ullong_ldouble (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5T_CONV_xF(ULLONG, LDOUBLE, unsigned long long, long double, -, -);
}
#endif /*H5T_CONV_INTERNAL_ULLONG_LDOUBLE*/
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_schar
*
* Purpose: Convert native float to native signed char using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_schar (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, SCHAR, float, signed char, SCHAR_MIN, SCHAR_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_uchar
*
* Purpose: Convert native float to native unsigned char using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_uchar (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, UCHAR, float, unsigned char, 0, UCHAR_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_schar
*
* Purpose: Convert native double to native signed char using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_schar (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, SCHAR, double, signed char, SCHAR_MIN, SCHAR_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_uchar
*
* Purpose: Convert native double to native unsigned char using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_uchar (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, UCHAR, double, unsigned char, 0, UCHAR_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_schar
*
* Purpose: Convert native long double to native signed char using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ldouble_schar (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, SCHAR, long double, signed char, SCHAR_MIN, SCHAR_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_uchar
*
* Purpose: Convert native long double to native unsigned char using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ldouble_uchar (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, UCHAR, long double, unsigned char, 0, UCHAR_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_short
*
* Purpose: Convert native float to native short using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_short (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, SHORT, float, short, SHRT_MIN, SHRT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_ushort
*
* Purpose: Convert native float to native unsigned short using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_ushort (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, USHORT, float, unsigned short, 0, USHRT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_short
*
* Purpose: Convert native double to native short using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_short (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, SHORT, double, short, SHRT_MIN, SHRT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_ushort
*
* Purpose: Convert native double to native unsigned short using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_ushort (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, USHORT, double, unsigned short, 0, USHRT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_short
*
* Purpose: Convert native long double to native short using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ldouble_short (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, SHORT, long double, short, SHRT_MIN, SHRT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_ushort
*
* Purpose: Convert native long double to native unsigned short using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ldouble_ushort (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, USHORT, long double, unsigned short, 0, USHRT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_int
*
* Purpose: Convert native float to native int using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_int (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, INT, float, int, INT_MIN, INT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_uint
*
* Purpose: Convert native float to native unsigned int using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_uint (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, UINT, float, unsigned int, 0, UINT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_int
*
* Purpose: Convert native double to native int using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_int (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, INT, double, int, INT_MIN, INT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_uint
*
* Purpose: Convert native double to native unsigned int using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_uint (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, UINT, double, unsigned int, 0, UINT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_int
*
* Purpose: Convert native long double to native int using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ldouble_int (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, INT, long double, int, INT_MIN, INT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_uint
*
* Purpose: Convert native long double to native unsigned int using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ldouble_uint (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, UINT, long double, unsigned int, 0, UINT_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_long
*
* Purpose: Convert native float to native long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_long (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, LONG, float, long, LONG_MIN, LONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_ulong
*
* Purpose: Convert native float to native unsigned long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_ulong (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, ULONG, float, unsigned long, 0, ULONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_long
*
* Purpose: Convert native double to native long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_long (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, LONG, double, long, LONG_MIN, LONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_ulong
*
* Purpose: Convert native double to native unsigned long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_ulong (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, ULONG, double, unsigned long, 0, ULONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_long
*
* Purpose: Convert native long double to native long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ldouble_long (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, LONG, long double, long, LONG_MIN, LONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_ulong
*
* Purpose: Convert native long double to native unsigned long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_ldouble_ulong (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, ULONG, long double, unsigned long, 0, ULONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_llong
*
* Purpose: Convert native float to native long long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_llong (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, LLONG, float, long long, LLONG_MIN, LLONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_float_ullong
*
* Purpose: Convert native float to native unsigned long long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_float_ullong (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(FLOAT, ULLONG, float, unsigned long long, 0, ULLONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_llong
*
* Purpose: Convert native double to native long long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_llong (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, LLONG, double, long long, LLONG_MIN, LLONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_double_ullong
*
* Purpose: Convert native double to native unsigned long long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, November 7, 2003
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_double_ullong (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(DOUBLE, ULLONG, double, unsigned long long, 0, ULLONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_llong
*
* Purpose: Convert native long double to native long long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
#ifdef H5T_CONV_INTERNAL_LDOUBLE_LLONG
herr_t
H5T__conv_ldouble_llong (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, LLONG, long double, long long, LLONG_MIN, LLONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
#endif /*H5T_CONV_INTERNAL_LDOUBLE_LLONG*/
/*-------------------------------------------------------------------------
* Function: H5T__conv_ldouble_ullong
*
* Purpose: Convert native long double to native unsigned long long using
* hardware. This is a fast special case.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Tuesday, Febuary 1, 2005
*
*-------------------------------------------------------------------------
*/
#if H5T_CONV_INTERNAL_LDOUBLE_ULLONG
herr_t
H5T__conv_ldouble_ullong (hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
size_t nelmts, size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride,
void *buf, void H5_ATTR_UNUSED *bkg)
{
H5_GCC_DIAG_OFF(float-equal)
H5T_CONV_Fx(LDOUBLE, ULLONG, long double, unsigned long long, 0, ULLONG_MAX);
H5_GCC_DIAG_ON(float-equal)
}
#endif /*H5T_CONV_INTERNAL_LDOUBLE_ULLONG*/
/*-------------------------------------------------------------------------
* Function: H5T__conv_f_i
*
* Purpose: Convert one floating-point type to an integer. This is
* the catch-all function for float-integer conversions and
* is probably not particularly fast.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Wednesday, Jan 21, 2004
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_f_i(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
{
/* Traversal-related variables */
H5T_t *src_p; /*source datatype */
H5T_t *dst_p; /*destination datatype */
H5T_atomic_t src; /*atomic source info */
H5T_atomic_t dst; /*atomic destination info */
int direction; /*forward or backward traversal */
size_t elmtno; /*element number */
size_t half_size; /*half the type size */
size_t tsize; /*type size for swapping bytes */
size_t olap; /*num overlapping elements */
uint8_t *s, *sp, *d, *dp; /*source and dest traversal ptrs*/
uint8_t *src_rev=NULL; /*order-reversed source buffer */
uint8_t dbuf[64]; /*temp destination buffer */
uint8_t tmp1, tmp2; /*temp variables for swapping bytes*/
/* Conversion-related variables */
hssize_t expo; /*source exponent */
hssize_t sign; /*source sign bit value */
uint8_t *int_buf=NULL; /*buffer for temporary value */
size_t buf_size; /*buffer size for temporary value */
size_t i; /*miscellaneous counters */
size_t first; /*first bit(MSB) in an integer */
ssize_t sfirst; /*a signed version of `first' */
H5T_conv_cb_t cb_struct={NULL, NULL}; /*conversion callback structure */
hbool_t truncated; /*if fraction value is dropped */
hbool_t reverse; /*if reverse order of destination at the end */
H5T_conv_ret_t except_ret; /*return of callback function */
herr_t ret_value=SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
if(NULL == (src_p = (H5T_t*)H5I_object(src_id)) || NULL == (dst_p = (H5T_t*)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
src = src_p->shared->u.atomic;
dst = dst_p->shared->u.atomic;
if(H5T_ORDER_LE != src.order && H5T_ORDER_BE != src.order && H5T_ORDER_VAX != src.order)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order")
if(dst_p->shared->size > sizeof(dbuf))
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "destination size is too large")
if(8 * sizeof(expo) - 1 < src.u.f.esize)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "exponent field is too large")
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_FREE:
break;
case H5T_CONV_CONV:
/* Get the datatypes */
if(NULL == (src_p = (H5T_t*)H5I_object(src_id)) || NULL == (dst_p = (H5T_t*)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
src = src_p->shared->u.atomic;
dst = dst_p->shared->u.atomic;
/*
* Do we process the values from beginning to end or vice versa? Also,
* how many of the elements have the source and destination areas
* overlapping?
*/
if(src_p->shared->size==dst_p->shared->size || buf_stride) {
sp = dp = (uint8_t*)buf;
direction = 1;
olap = nelmts;
} else if (src_p->shared->size>=dst_p->shared->size) {
double olap_d = HDceil((double)(dst_p->shared->size)/
(double)(src_p->shared->size-dst_p->shared->size));
olap = (size_t)olap_d;
sp = dp = (uint8_t*)buf;
direction = 1;
} else {
double olap_d = HDceil((double)(src_p->shared->size)/
(double)(dst_p->shared->size-src_p->shared->size));
olap = (size_t)olap_d;
sp = (uint8_t*)buf + (nelmts-1) * src_p->shared->size;
dp = (uint8_t*)buf + (nelmts-1) * dst_p->shared->size;
direction = -1;
}
/* Allocate enough space for the buffer holding temporary
* converted value
*/
buf_size = (size_t) (HDpow((double)2.0f, (double)src.u.f.esize) / 8 + 1);
int_buf = (uint8_t*)H5MM_calloc(buf_size);
/* Get conversion exception callback property */
if(H5CX_get_dt_conv_cb(&cb_struct) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get conversion exception callback")
/* Allocate space for order-reversed source buffer */
src_rev = (uint8_t*)H5MM_calloc(src_p->shared->size);
/* The conversion loop */
for(elmtno = 0; elmtno < nelmts; elmtno++) {
/* Set these variables to default */
except_ret = H5T_CONV_UNHANDLED;
truncated = FALSE;
reverse = TRUE;
/*
* If the source and destination buffers overlap then use a
* temporary buffer for the destination.
*/
if(direction > 0) {
s = sp;
d = elmtno<olap ? dbuf : dp;
} else {
s = sp;
d = elmtno+olap >= nelmts ? dbuf : dp;
}
#ifndef NDEBUG
/* I don't quite trust the overlap calculations yet --rpm */
if (d==dbuf) {
HDassert((dp>=sp && dp<sp+src_p->shared->size) ||
(sp>=dp && sp<dp+dst_p->shared->size));
} else {
HDassert((dp<sp && dp+dst_p->shared->size<=sp) ||
(sp<dp && sp+src_p->shared->size<=dp));
}
#endif
/*
* Put the data in little endian order so our loops aren't so
* complicated. We'll do all the conversion stuff assuming
* little endian and then we'll fix the order at the end.
*/
if (H5T_ORDER_BE==src.order) {
half_size = src_p->shared->size/2;
for (i=0; i<half_size; i++) {
tmp1 = s[src_p->shared->size-(i+1)];
s[src_p->shared->size-(i+1)] = s[i];
s[i] = tmp1;
}
} else if (H5T_ORDER_VAX==src.order) {
tsize = src_p->shared->size;
HDassert(0 == tsize % 2);
for (i = 0; i < tsize; i += 4) {
tmp1 = s[i];
tmp2 = s[i+1];
s[i] = s[(tsize-2)-i];
s[i+1] = s[(tsize-1)-i];
s[(tsize-2)-i] = tmp1;
s[(tsize-1)-i] = tmp2;
}
}
/*zero-set all destination bits*/
H5T__bit_set (d, dst.offset, dst.prec, FALSE);
/*
* Find the sign bit value of the source.
*/
sign = (hssize_t) H5T__bit_get_d(s, src.u.f.sign, (size_t)1);
/*
* Check for special cases: +0, -0, +Inf, -Inf, NaN
*/
if (H5T__bit_find (s, src.u.f.mpos, src.u.f.msize,
H5T_BIT_LSB, TRUE)<0) {
if (H5T__bit_find (s, src.u.f.epos, src.u.f.esize,
H5T_BIT_LSB, TRUE)<0) {
/* +0 or -0 */
/* Set all bits to zero */
goto padding;
} else if (H5T__bit_find (s, src.u.f.epos, src.u.f.esize,
H5T_BIT_LSB, FALSE)<0) {
/* +Infinity or -Infinity */
if(sign) { /* -Infinity */
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_NINF,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
if (H5T_SGN_2==dst.u.i.sign)
H5T__bit_set (d, dst.prec-1, (size_t)1, TRUE);
} else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
} else { /* +Infinity */
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_PINF,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
if (H5T_SGN_NONE==dst.u.i.sign)
H5T__bit_set (d, dst.offset, dst.prec, TRUE);
else if (H5T_SGN_2==dst.u.i.sign)
H5T__bit_set (d, dst.offset, dst.prec-1, TRUE);
} else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
}
goto padding;
}
} else if (H5T_NORM_NONE==src.u.f.norm && H5T__bit_find (s, src.u.f.mpos, src.u.f.msize-1,
H5T_BIT_LSB, TRUE)<0 && H5T__bit_find (s, src.u.f.epos, src.u.f.esize,
H5T_BIT_LSB, FALSE)<0) {
/*This is a special case for the source of no implied mantissa bit.
*If the exponent bits are all 1s and only the 1st bit of mantissa
*is set to 1. It's infinity. The Intel-Linux "long double" is this case.*/
/* +Infinity or -Infinity */
if(sign) { /* -Infinity */
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_NINF,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
if (H5T_SGN_2==dst.u.i.sign)
H5T__bit_set (d, dst.prec-1, (size_t)1, TRUE);
} else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
} else { /* +Infinity */
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_PINF,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
if (H5T_SGN_NONE==dst.u.i.sign)
H5T__bit_set (d, dst.offset, dst.prec, TRUE);
else if (H5T_SGN_2==dst.u.i.sign)
H5T__bit_set (d, dst.offset, dst.prec-1, TRUE);
} else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
}
goto padding;
} else if (H5T__bit_find (s, src.u.f.epos, src.u.f.esize,
H5T_BIT_LSB, FALSE)<0) {
/* NaN */
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_NAN,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
/*Just set all bits to zero.*/
goto padding;
} else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
goto padding;
}
/*
* Get the exponent as an unsigned quantity from the section of
* the source bit field where it's located. Not expecting
* exponent to be greater than the maximal value of hssize_t.
*/
expo = (hssize_t) H5T__bit_get_d(s, src.u.f.epos, src.u.f.esize);
/*
* Calculate the true source exponent by adjusting according to
* the source exponent bias.
*/
if (0==expo || H5T_NORM_NONE==src.u.f.norm) {
expo -= (hssize_t) (src.u.f.ebias-1);
} else if (H5T_NORM_IMPLIED==src.u.f.norm) {
expo -= (hssize_t) src.u.f.ebias;
} else {
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "normalization method not implemented yet")
}
/*
* Get the mantissa as bit vector from the section of
* the source bit field where it's located.
* Keep the little-endian order in the buffer.
* A sequence 0x01020304 will be like in the buffer,
* 04 03 02 01
* | | | |
* V V V V
* buf[0] buf[1] buf[2] buf[3]
*/
H5T__bit_copy(int_buf, (size_t)0, s, src.u.f.mpos, src.u.f.msize);
/*
* Restore the implicit bit for mantissa if it's implied.
* Equivalent to mantissa |= (hsize_t)1<<src.u.f.msize.
*/
if(H5T_NORM_IMPLIED == src.u.f.norm)
H5T__bit_inc(int_buf, src.u.f.msize, 8 * buf_size - src.u.f.msize);
/*
* Shift mantissa part by exponent minus mantissa size(right shift),
* or by mantissa size minus exponent(left shift). Example: Sequence
* 10...010111, expo=20, expo-msize=-3. Right-shift the sequence, we get
* 00010...10. The last three bits were dropped.
*/
H5T__bit_shift(int_buf, expo - (ssize_t)src.u.f.msize, (size_t)0, buf_size * 8);
/*
* If expo is less than mantissa size, the frantional value is dropped off
* during conversion. Set exception type to be "truncate"
*/
if ((size_t)expo < src.u.f.msize && cb_struct.func)
truncated = TRUE;
/*
* What is the bit position for the most significant bit(MSB) of S
* which is set? This is checked before converted to negative
* integer.
*/
sfirst = H5T__bit_find(int_buf, (size_t)0, 8 * buf_size, H5T_BIT_MSB, TRUE);
first = (size_t)sfirst;
if(sfirst < 0) {
/*
* The source has no bits set and must therefore be zero.
* Set the destination to zero - nothing to do.
*/
} else if (H5T_SGN_NONE==dst.u.i.sign) { /*destination is unsigned*/
/*
* Destination is unsigned. Library's default way: If the source value
* is greater than the maximal destination value then it overflows, the
* destination will be set to the maximum possible value. When the
* source is negative, underflow happens. Set the destination to be
* zero(do nothing). If user's exception handler is set, call it and
* let user handle it.
*/
if(sign) { /*source is negative*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW,
src_id, dst_id, src_rev, d, cb_struct.user_data);
if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
}
}
} else { /*source is positive*/
if (first>=dst.prec) {
/*overflow*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED)
H5T__bit_set (d, dst.offset, dst.prec, TRUE);
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
} else if (first <dst.prec) {
if(truncated && cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_TRUNCATE,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED)
/*copy source value into it if case is ignored by user handler*/
H5T__bit_copy (d, dst.offset, int_buf, (size_t)0, first+1);
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
}
}
} else if (H5T_SGN_2==dst.u.i.sign) { /*Destination is signed*/
if(sign) { /*source is negative*/
if(first < dst.prec-1) {
if(truncated && cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_TRUNCATE,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) { /*If this case ignored by user handler*/
/*Convert to integer representation. Equivalent to ~(value - 1).*/
H5T__bit_dec(int_buf, (size_t)0, 8 * buf_size);
H5T__bit_neg(int_buf, (size_t)0, 8 * buf_size);
/*copy source value into destination*/
H5T__bit_copy(d, dst.offset, int_buf, (size_t)0, dst.prec-1);
H5T__bit_set(d, (dst.offset + dst.prec-1), (size_t)1, TRUE);
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
}
} else {
/* if underflows and no callback, do nothing except turn on
* the sign bit because 0x80...00 is the biggest negative value.
*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_LOW,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED)
H5T__bit_set(d, (dst.offset + dst.prec-1), (size_t)1, TRUE);
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
}
}
} else { /*source is positive*/
if (first >= dst.prec-1) {
/*overflow*/
if(cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED)
H5T__bit_set(d, dst.offset, dst.prec-1, TRUE);
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
}
} else if(first < dst.prec-1) {
if(truncated && cb_struct.func) { /*If user's exception handler is present, use it*/
/*reverse order first*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order);
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_TRUNCATE,
src_id, dst_id, src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_UNHANDLED) {
/*copy source value into it if case is ignored by user handler*/
H5T__bit_copy (d, dst.offset, int_buf, (size_t)0, first+1);
} else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED) {
/*No need to reverse the order of destination because user handles it*/
reverse = FALSE;
goto next;
}
}
}
}
padding:
/*
* Set padding areas in destination.
*/
if (dst.offset>0) {
HDassert(H5T_PAD_ZERO==dst.lsb_pad || H5T_PAD_ONE==dst.lsb_pad);
H5T__bit_set(d, (size_t)0, dst.offset, (hbool_t)(H5T_PAD_ONE==dst.lsb_pad));
}
if (dst.offset+dst.prec!=8*dst_p->shared->size) {
HDassert(H5T_PAD_ZERO==dst.msb_pad || H5T_PAD_ONE==dst.msb_pad);
H5T__bit_set(d, dst.offset+dst.prec,
8*dst_p->shared->size - (dst.offset+ dst.prec),
(hbool_t)(H5T_PAD_ONE==dst.msb_pad));
}
/*
* Put the destination in the correct byte order. See note at
* beginning of loop.
*/
if (H5T_ORDER_BE==dst.order && reverse) {
half_size = dst_p->shared->size/2;
for (i=0; i<half_size; i++) {
tmp1 = d[dst_p->shared->size-(i+1)];
d[dst_p->shared->size-(i+1)] = d[i];
d[i] = tmp1;
}
}
next:
/*
* If we had used a temporary buffer for the destination then we
* should copy the value to the true destination buffer.
*/
if (d==dbuf)
H5MM_memcpy (dp, d, dst_p->shared->size);
if (buf_stride) {
sp += direction * (ssize_t) buf_stride;
dp += direction * (ssize_t) buf_stride;
} else {
sp += direction * (ssize_t) src_p->shared->size;
dp += direction * (ssize_t) dst_p->shared->size;
}
HDmemset(int_buf, 0, buf_size);
}
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
if(int_buf)
H5MM_xfree(int_buf);
if(src_rev)
H5MM_free(src_rev);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_f_i() */
/*-------------------------------------------------------------------------
* Function: H5T__conv_i_f
*
* Purpose: Convert one integer type to a floating-point type. This is
* the catch-all function for integer-float conversions and
* is probably not particularly fast.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* Friday, Feb 6, 2004
*
*-------------------------------------------------------------------------
*/
herr_t
H5T__conv_i_f(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, size_t nelmts,
size_t buf_stride, size_t H5_ATTR_UNUSED bkg_stride, void *buf, void H5_ATTR_UNUSED *bkg)
{
/* Traversal-related variables */
H5T_t *src_p; /*source datatype */
H5T_t *dst_p; /*destination datatype */
H5T_atomic_t src; /*atomic source info */
H5T_atomic_t dst; /*atomic destination info */
int direction; /*forward or backward traversal */
size_t elmtno; /*element number */
size_t half_size; /*half the type size */
size_t tsize; /*type size for swapping bytes */
size_t olap; /*num overlapping elements */
uint8_t *s, *sp, *d, *dp; /*source and dest traversal ptrs*/
uint8_t *src_rev = NULL; /*order-reversed source buffer */
uint8_t dbuf[64]; /*temp destination buffer */
uint8_t tmp1, tmp2; /*temp variables for swapping bytes*/
/* Conversion-related variables */
hsize_t expo; /*destination exponent */
hsize_t expo_max; /*maximal possible exponent value */
size_t sign; /*source sign bit value */
hbool_t is_max_neg; /*source is maximal negative value*/
hbool_t do_round; /*whether there is roundup */
uint8_t *int_buf = NULL; /*buffer for temporary value */
size_t buf_size; /*buffer size for temporary value */
size_t i; /*miscellaneous counters */
size_t first; /*first bit(MSB) in an integer */
ssize_t sfirst; /*a signed version of `first' */
H5T_conv_cb_t cb_struct = {NULL, NULL}; /*conversion callback structure */
H5T_conv_ret_t except_ret; /*return of callback function */
hbool_t reverse; /*if reverse the order of destination */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
switch(cdata->command) {
case H5T_CONV_INIT:
if(NULL == (src_p = (H5T_t *)H5I_object(src_id)) || NULL == (dst_p = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
src = src_p->shared->u.atomic;
dst = dst_p->shared->u.atomic;
if(H5T_ORDER_LE != dst.order && H5T_ORDER_BE != dst.order && H5T_ORDER_VAX != dst.order)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unsupported byte order")
if(dst_p->shared->size > sizeof(dbuf))
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "destination size is too large")
if(8 * sizeof(expo) - 1 < src.u.f.esize)
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "exponent field is too large")
cdata->need_bkg = H5T_BKG_NO;
break;
case H5T_CONV_FREE:
break;
case H5T_CONV_CONV:
/* Get the datatypes */
if(NULL == (src_p = (H5T_t *)H5I_object(src_id)) || NULL == (dst_p = (H5T_t *)H5I_object(dst_id)))
HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
src = src_p->shared->u.atomic;
dst = dst_p->shared->u.atomic;
/*
* Do we process the values from beginning to end or vice versa? Also,
* how many of the elements have the source and destination areas
* overlapping?
*/
if (src_p->shared->size==dst_p->shared->size || buf_stride) {
sp = dp = (uint8_t*)buf;
direction = 1;
olap = nelmts;
} else if (src_p->shared->size>=dst_p->shared->size) {
double olap_d = HDceil((double)(dst_p->shared->size)/
(double)(src_p->shared->size-dst_p->shared->size));
olap = (size_t)olap_d;
sp = dp = (uint8_t*)buf;
direction = 1;
} else {
double olap_d = HDceil((double)(src_p->shared->size)/
(double)(dst_p->shared->size-src_p->shared->size));
olap = (size_t)olap_d;
sp = (uint8_t*)buf + (nelmts-1) * src_p->shared->size;
dp = (uint8_t*)buf + (nelmts-1) * dst_p->shared->size;
direction = -1;
}
/* Allocate enough space for the buffer holding temporary
* converted value
*/
buf_size = (src.prec > dst.u.f.msize ? src.prec : dst.u.f.msize)/8 + 1;
int_buf = (uint8_t*)H5MM_calloc(buf_size);
/* Get conversion exception callback property */
if(H5CX_get_dt_conv_cb(&cb_struct) < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "unable to get conversion exception callback")
/* Allocate space for order-reversed source buffer */
src_rev = (uint8_t*)H5MM_calloc(src_p->shared->size);
/* The conversion loop */
for (elmtno=0; elmtno<nelmts; elmtno++) {
/* Set these variables to default */
except_ret = H5T_CONV_UNHANDLED;
reverse = TRUE;
/* Make sure these variables are reset to 0. */
sign = 0; /*source sign bit value */
is_max_neg = 0; /*source is maximal negative value*/
do_round = 0; /*whether there is roundup */
sfirst = 0;
/*
* If the source and destination buffers overlap then use a
* temporary buffer for the destination.
*/
if (direction>0) {
s = sp;
d = elmtno<olap ? dbuf : dp;
} else {
s = sp;
d = elmtno+olap >= nelmts ? dbuf : dp;
}
#ifndef NDEBUG
/* I don't quite trust the overlap calculations yet --rpm */
if (d==dbuf) {
HDassert((dp>=sp && dp<sp+src_p->shared->size) ||
(sp>=dp && sp<dp+dst_p->shared->size));
} else {
HDassert((dp<sp && dp+dst_p->shared->size<=sp) ||
(sp<dp && sp+src_p->shared->size<=dp));
}
#endif
/* Put the data in little endian order so our loops aren't so
* complicated. We'll do all the conversion stuff assuming
* little endian and then we'll fix the order at the end.
*/
if (H5T_ORDER_BE==src.order) {
half_size = src_p->shared->size/2;
for (i=0; i<half_size; i++) {
tmp1 = s[src_p->shared->size-(i+1)];
s[src_p->shared->size-(i+1)] = s[i];
s[i] = tmp1;
}
}
/* Zero-set all destination bits*/
H5T__bit_set (d, dst.offset, dst.prec, FALSE);
/* Copy source into a temporary buffer */
H5T__bit_copy(int_buf, (size_t)0, s, src.offset, src.prec);
/* Find the sign bit value of the source */
if(H5T_SGN_2 == src.u.i.sign)
sign = (size_t)H5T__bit_get_d(int_buf, src.prec - 1, (size_t)1);
/* What is the bit position(starting from 0 as first one) for the most significant
* bit(MSB) of S which is set?
*/
if(H5T_SGN_2 == src.u.i.sign) {
sfirst = H5T__bit_find(int_buf, (size_t)0, src.prec - 1, H5T_BIT_MSB, TRUE);
if(sign && sfirst < 0)
/* The case 0x80...00, which is negative with maximal value */
is_max_neg = 1;
} else if(H5T_SGN_NONE == src.u.i.sign)
sfirst = H5T__bit_find(int_buf, (size_t)0, src.prec, H5T_BIT_MSB, TRUE);
/* Handle special cases here. Integer is zero */
if(!sign && sfirst < 0)
goto padding;
/* Convert source integer if it's negative */
if(H5T_SGN_2 == src.u.i.sign && sign) {
if(!is_max_neg) {
/* Equivalent to ~(i - 1) */
H5T__bit_dec(int_buf, (size_t)0, buf_size * 8);
H5T__bit_neg(int_buf, (size_t)0, buf_size * 8);
sfirst = H5T__bit_find(int_buf, (size_t)0, src.prec - 1, H5T_BIT_MSB, TRUE);
} else {
/* If it's maximal negative number 0x80...000, treat it as if it overflowed
* (create a carry) to help conversion. i.e. a character type number 0x80
* is treated as 0x100.
*/
sfirst = (ssize_t)(src.prec - 1);
is_max_neg = 0;
}
if(sfirst < 0)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "zero bit not found")
/* Sign bit has been negated if bit vector isn't 0x80...00. Set all bits in front of
* sign bit to 0 in the temporary buffer because they're all negated from the previous
* step.
*/
H5T__bit_set(int_buf, src.prec, (buf_size * 8) - src.prec, 0);
/* Set sign bit in destination */
H5T__bit_set_d(d, dst.u.f.sign, (size_t)1, (hsize_t)sign);
} /* end if */
first = (size_t)sfirst;
/* Calculate the true destination exponent by adjusting according to
* the destination exponent bias. Implied and non-implied normalization
* should be the same.
*/
if (H5T_NORM_NONE==dst.u.f.norm || H5T_NORM_IMPLIED==dst.u.f.norm) {
expo = first + dst.u.f.ebias;
}
else {
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "normalization method not implemented yet")
}
/* Handle mantissa part here */
if (H5T_NORM_IMPLIED==dst.u.f.norm) {
/* Imply first bit */
H5T__bit_set(int_buf, first, (size_t)1, 0);
}
else if (H5T_NORM_NONE==dst.u.f.norm) {
first++;
}
/* Roundup for mantissa */
if(first > dst.u.f.msize) {
/* If the bit sequence is bigger than the mantissa part, there'll be some
* precision loss. Let user's handler deal with the case if it's present
*/
if(cb_struct.func) {
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order); /*reverse order first*/
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_PRECISION, src_id, dst_id,
src_rev, d, cb_struct.user_data);
}
if(except_ret == H5T_CONV_HANDLED) {
reverse = FALSE;
goto padding;
}
else if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
/* If user's exception handler does deal with it, we do it by dropping off the
* extra bits at the end and do rounding. If we have .50...0(decimal) after radix
* point, we do roundup when the least significant digit before radix is odd, we do
* rounddown if it's even.
*/
/* Check 1st dropoff bit, see if it's set. */
if(H5T__bit_get_d(int_buf, ((first - dst.u.f.msize) - 1), (size_t)1)) {
/* Check all bits after 1st dropoff bit, see if any of them is set. */
if(((first - dst.u.f.msize) - 1) > 0 && H5T__bit_get_d(int_buf, (size_t)0, ((first - dst.u.f.msize) - 1)))
do_round = 1;
else { /* The .50...0 case */
/* Check if the least significant bit is odd. */
if(H5T__bit_get_d(int_buf, (first - dst.u.f.msize), (size_t)1))
do_round = 1;
}
}
/* Right shift to drop off extra bits */
H5T__bit_shift(int_buf, (ssize_t)(dst.u.f.msize - first), (size_t)0, buf_size * 8);
if(do_round) {
H5T__bit_inc(int_buf, (size_t)0, buf_size * 8);
do_round = 0;
/* If integer is like 0x0ff...fff and we need to round up the
* last f, we get 0x100...000. Treat this special case here.
*/
if(H5T__bit_get_d(int_buf, dst.u.f.msize, (size_t)1)) {
if (H5T_NORM_IMPLIED==dst.u.f.norm) {
/* The bit at this 1's position was impled already, so this
* number should be 0x200...000. We need to increment the
* exponent in this case.
*/
expo++;
} else if (H5T_NORM_NONE==dst.u.f.norm) {
/* Right shift 1 bit to let the carried 1 fit in the mantissa,
* and increment exponent by 1.
*/
H5T__bit_shift(int_buf, (ssize_t)-1, (size_t)0, buf_size * 8);
expo++;
}
}
}
} else {
/* The bit sequence can fit mantissa part. Left shift to fit in from high-order of
* bit position. */
H5T__bit_shift(int_buf, (ssize_t)(dst.u.f.msize - first), (size_t)0, dst.u.f.msize);
}
/* Check if the exponent is too big */
expo_max = (hsize_t) (HDpow((double)2.0f, (double)dst.u.f.esize) - 1);
if(expo > expo_max) { /*overflows*/
if(cb_struct.func) { /*user's exception handler. Reverse back source order*/
H5T_reverse_order(src_rev, s, src_p->shared->size, src_p->shared->u.atomic.order); /*reverse order first*/
except_ret = (cb_struct.func)(H5T_CONV_EXCEPT_RANGE_HI, src_id, dst_id,
src_rev, d, cb_struct.user_data);
if(except_ret == H5T_CONV_ABORT)
HGOTO_ERROR(H5E_DATATYPE, H5E_CANTCONVERT, FAIL, "can't handle conversion exception")
else if(except_ret == H5T_CONV_HANDLED) {
reverse = FALSE;
goto padding;
}
} else {
/*make destination infinity by setting exponent to maximal number and
*mantissa to zero.*/
expo = expo_max;
HDmemset(int_buf, 0, buf_size);
}
}
if(except_ret == H5T_CONV_UNHANDLED) {
/* Set exponent in destination */
H5T__bit_set_d(d, dst.u.f.epos, dst.u.f.esize, expo);
/* Copy mantissa into destination */
H5T__bit_copy(d, dst.u.f.mpos, int_buf, (size_t)0, (buf_size * 8) > dst.u.f.msize ? dst.u.f.msize : buf_size * 8);
}
padding:
/*
* Set padding areas in destination.
*/
if(dst.offset > 0) {
HDassert(H5T_PAD_ZERO == dst.lsb_pad || H5T_PAD_ONE == dst.lsb_pad);
H5T__bit_set(d, (size_t)0, dst.offset, (hbool_t)(H5T_PAD_ONE==dst.lsb_pad));
}
if(dst.offset + dst.prec != 8 * dst_p->shared->size) {
HDassert(H5T_PAD_ZERO == dst.msb_pad || H5T_PAD_ONE == dst.msb_pad);
H5T__bit_set(d, dst.offset + dst.prec,
8 * dst_p->shared->size - (dst.offset + dst.prec),
(hbool_t)(H5T_PAD_ONE == dst.msb_pad));
}
/*
* Put the destination in the correct byte order. See note at
* beginning of loop.
*/
if (H5T_ORDER_BE==dst.order && reverse) {
half_size = dst_p->shared->size/2;
for (i=0; i<half_size; i++) {
uint8_t tmp = d[dst_p->shared->size-(i+1)];
d[dst_p->shared->size-(i+1)] = d[i];
d[i] = tmp;
}
} else if (H5T_ORDER_VAX==dst.order && reverse) {
tsize = dst_p->shared->size;
HDassert(0 == tsize % 2);
for (i = 0; i < tsize; i += 4) {
tmp1 = d[i];
tmp2 = d[i+1];
d[i] = d[(tsize-2)-i];
d[i+1] = d[(tsize-1)-i];
d[(tsize-2)-i] = tmp1;
d[(tsize-1)-i] = tmp2;
}
}
/*
* If we had used a temporary buffer for the destination then we
* should copy the value to the true destination buffer.
*/
if (d==dbuf)
H5MM_memcpy (dp, d, dst_p->shared->size);
if (buf_stride) {
sp += direction * (ssize_t) buf_stride;
dp += direction * (ssize_t) buf_stride;
} else {
sp += direction * (ssize_t) src_p->shared->size;
dp += direction * (ssize_t) dst_p->shared->size;
}
HDmemset(int_buf, 0, buf_size);
}
break;
default:
HGOTO_ERROR(H5E_DATATYPE, H5E_UNSUPPORTED, FAIL, "unknown conversion command")
} /* end switch */
done:
if(int_buf)
H5MM_xfree(int_buf);
if(src_rev)
H5MM_free(src_rev);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5T__conv_i_f() */
/*-------------------------------------------------------------------------
* Function: H5T_reverse_order
*
* Purpose: Internal assisting function to reverse the order of
* a sequence of byte when it's big endian or VAX order.
* The byte sequence simulates the endian order.
*
* Return: Success: A pointer to the reversed byte sequence
*
* Failure: Null
*
* Programmer: Raymond Lu
* April 26, 2004
*
*-------------------------------------------------------------------------
*/
static herr_t
H5T_reverse_order(uint8_t *rev, uint8_t *s, size_t size, H5T_order_t order)
{
size_t i;
FUNC_ENTER_NOAPI_NOINIT_NOERR
HDassert(s);
HDassert(size);
if (H5T_ORDER_VAX == order) {
for (i = 0; i < size; i += 2) {
rev[i] = s[(size - 2) - i];
rev[i + 1] = s[(size - 1) - i];
}
} else if (H5T_ORDER_BE == order) {
for (i=0; i<size; i++)
rev[size-(i+1)] = s[i];
} else {
for (i=0; i<size; i++)
rev[i] = s[i];
}
FUNC_LEAVE_NOAPI(SUCCEED)
}
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