mirror/netcdf-c
2
0
Fork 0
mirror of https://github.com/Unidata/netcdf-c.git synced 2024-11-21 03:13:42 +08:00
Code Issues Packages Projects Releases Wiki Activity
92ccf1c5fa
netcdf-c/libsrc/old_ncx.m4
Ed Hartnett 18f4bca367 moving to trunk subdir
2010-06-03 13:24:43 +00:00

2908 lines
56 KiB
Plaintext
Raw Blame History

dnl
dnl sjl: this version of ncx.m4 has SX-specific optimisations as per
dnl Harveys mods to earlier versions. However, I have removed
dnl support for FLOAT2 and attemped to tidy up the mods to
dnl reduce the complexity a bit
dnl
dnl This is m4 source.
dnl Process using m4 to produce 'C' language file.
dnl
dnl If you see this line, you can ignore the next one.
/* Do not edit this file. It is produced from the corresponding .m4 source */
dnl
/*
* Copyright 1996, University Corporation for Atmospheric Research
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
*
* This file contains some routines derived from code
* which is copyrighted by Sun Microsystems, Inc.
* The "#ifdef vax" versions of
* ncx_put_float_float()
* ncx_get_float_float()
* ncx_put_double_double()
* ncx_get_double_double()
* ncx_putn_float_float()
* ncx_getn_float_float()
* ncx_putn_double_double()
* ncx_getn_double_double()
* are derived from xdr_float() and xdr_double() routines
* in the freely available, copyrighted Sun RPCSRC 3.9
* distribution, xdr_float.c.
* Our "value added" is that these are always memory to memory,
* they handle IEEE subnormals properly, and their "n" versions
* operate speedily on arrays.
*/
/* $Id: old_ncx.m4,v 2.1 2010/05/25 17:54:17 dmh Exp $ */
/*
* An external data representation interface.
*/
#include "ncx.h"
#include <string.h>
#include <limits.h>
/* alias poorly named limits.h macros */
#define SHORT_MAX SHRT_MAX
#define SHORT_MIN SHRT_MIN
#define USHORT_MAX USHRT_MAX
#include <float.h>
#ifndef FLT_MAX /* This POSIX macro missing on some systems */
# ifndef NO_IEEE_FLOAT
# define FLT_MAX 3.40282347e+38f
# else
# error "You will need to define FLT_MAX"
# endif
#endif
/* alias poorly named float.h macros */
#define FLOAT_MAX FLT_MAX
#define FLOAT_MIN (-FLT_MAX)
#define DOUBLE_MAX DBL_MAX
#define DOUBLE_MIN (-DBL_MAX)
#define FLOAT_MAX_EXP FLT_MAX_EXP
#define DOUBLE_MAX_EXP DBL_MAX_EXP
#include <assert.h>
#define UCHAR_MIN 0
#define Min(a,b) ((a) < (b) ? (a) : (b))
#define Max(a,b) ((a) > (b) ? (a) : (b))
/*
* If the machine's float domain is "smaller" than the external one
* use the machine domain
*/
#if defined(FLT_MAX_EXP) && FLT_MAX_EXP < 128 /* 128 is X_FLT_MAX_EXP */
#undef X_FLOAT_MAX
# define X_FLOAT_MAX FLT_MAX
#undef X_FLOAT_MIN
# define X_FLOAT_MIN (-X_FLOAT_MAX)
#endif
#if _SX /* NEC SUPER UX */
#define LOOPCNT 256 /* must be no longer than hardware vector length */
#if _INT64
#undef INT_MAX /* workaround cpp bug */
#define INT_MAX X_INT_MAX
#undef INT_MIN /* workaround cpp bug */
#define INT_MIN X_INT_MIN
#undef LONG_MAX /* workaround cpp bug */
#define LONG_MAX X_INT_MAX
#undef LONG_MIN /* workaround cpp bug */
#define LONG_MIN X_INT_MIN
#elif _LONG64
#undef LONG_MAX /* workaround cpp bug */
#define LONG_MAX 4294967295L
#undef LONG_MIN /* workaround cpp bug */
#define LONG_MIN -4294967295L
#endif
#if !_FLOAT0
#error "FLOAT1 and FLOAT2 not supported"
#endif
#endif /* _SX */
static const char nada[X_ALIGN] = {0, 0, 0, 0};
#ifndef WORDS_BIGENDIAN
/* LITTLE_ENDIAN: DEC and intel */
/*
* Routines to convert to BIGENDIAN.
* Optimize the swapn?b() and swap?b() routines aggressivly.
*/
#define SWAP2(a) ( (((a) & 0xff) << 8) | \
(((a) >> 8) & 0xff) )
#define SWAP4(a) ( ((a) << 24) | \
(((a) << 8) & 0x00ff0000) | \
(((a) >> 8) & 0x0000ff00) | \
(((a) >> 24) & 0x000000ff) )
static void
swapn2b(void *dst, const void *src, size_t nn)
{
char *op = dst;
const char *ip = src;
/* unroll the following to reduce loop overhead
*
* while(nn-- != 0)
* {
* *op++ = *(++ip);
* *op++ = *(ip++ -1);
* }
*/
while(nn > 3)
{
*op++ = *(++ip);
*op++ = *(ip++ -1);
*op++ = *(++ip);
*op++ = *(ip++ -1);
*op++ = *(++ip);
*op++ = *(ip++ -1);
*op++ = *(++ip);
*op++ = *(ip++ -1);
nn -= 4;
}
while(nn-- != 0)
{
*op++ = *(++ip);
*op++ = *(ip++ -1);
}
}
# ifndef vax
static void
swap4b(void *dst, const void *src)
{
char *op = dst;
const char *ip = src;
op[0] = ip[3];
op[1] = ip[2];
op[2] = ip[1];
op[3] = ip[0];
}
# endif /* !vax */
static void
swapn4b(void *dst, const void *src, size_t nn)
{
char *op = dst;
const char *ip = src;
/* unroll the following to reduce loop overhead
* while(nn-- != 0)
* {
* op[0] = ip[3];
* op[1] = ip[2];
* op[2] = ip[1];
* op[3] = ip[0];
* op += 4;
* ip += 4;
* }
*/
while(nn > 3)
{
op[0] = ip[3];
op[1] = ip[2];
op[2] = ip[1];
op[3] = ip[0];
op[4] = ip[7];
op[5] = ip[6];
op[6] = ip[5];
op[7] = ip[4];
op[8] = ip[11];
op[9] = ip[10];
op[10] = ip[9];
op[11] = ip[8];
op[12] = ip[15];
op[13] = ip[14];
op[14] = ip[13];
op[15] = ip[12];
op += 16;
ip += 16;
nn -= 4;
}
while(nn-- != 0)
{
op[0] = ip[3];
op[1] = ip[2];
op[2] = ip[1];
op[3] = ip[0];
op += 4;
ip += 4;
}
}
# ifndef vax
static void
swap8b(void *dst, const void *src)
{
char *op = dst;
const char *ip = src;
# ifndef FLOAT_WORDS_BIGENDIAN
op[0] = ip[7];
op[1] = ip[6];
op[2] = ip[5];
op[3] = ip[4];
op[4] = ip[3];
op[5] = ip[2];
op[6] = ip[1];
op[7] = ip[0];
# else
op[0] = ip[3];
op[1] = ip[2];
op[2] = ip[1];
op[3] = ip[0];
op[4] = ip[7];
op[5] = ip[6];
op[6] = ip[5];
op[7] = ip[4];
# endif
}
# endif /* !vax */
# ifndef vax
static void
swapn8b(void *dst, const void *src, size_t nn)
{
char *op = dst;
const char *ip = src;
/* unroll the following to reduce loop overhead
* while(nn-- != 0)
* {
* op[0] = ip[7];
* op[1] = ip[6];
* op[2] = ip[5];
* op[3] = ip[4];
* op[4] = ip[3];
* op[5] = ip[2];
* op[6] = ip[1];
* op[7] = ip[0];
* op += 8;
* ip += 8;
* }
*/
# ifndef FLOAT_WORDS_BIGENDIAN
while(nn > 1)
{
op[0] = ip[7];
op[1] = ip[6];
op[2] = ip[5];
op[3] = ip[4];
op[4] = ip[3];
op[5] = ip[2];
op[6] = ip[1];
op[7] = ip[0];
op[8] = ip[15];
op[9] = ip[14];
op[10] = ip[13];
op[11] = ip[12];
op[12] = ip[11];
op[13] = ip[10];
op[14] = ip[9];
op[15] = ip[8];
op += 16;
ip += 16;
nn -= 2;
}
while(nn-- != 0)
{
op[0] = ip[7];
op[1] = ip[6];
op[2] = ip[5];
op[3] = ip[4];
op[4] = ip[3];
op[5] = ip[2];
op[6] = ip[1];
op[7] = ip[0];
op += 8;
ip += 8;
}
# else
while(nn-- != 0)
{
op[0] = ip[3];
op[1] = ip[2];
op[2] = ip[1];
op[3] = ip[0];
op[4] = ip[7];
op[5] = ip[6];
op[6] = ip[5];
op[7] = ip[4];
op += 8;
ip += 8;
}
# endif
}
# endif /* !vax */
#endif /* LITTLE_ENDIAN */
/*
* Primitive numeric conversion functions.
*/
/* x_schar */
/* We don't implement and x_schar primitives. */
/* x_short */
#if SHORT_MAX == X_SHORT_MAX
typedef short ix_short;
#define SIZEOF_IX_SHORT SIZEOF_SHORT
#define IX_SHORT_MAX SHORT_MAX
#elif INT_MAX >= X_SHORT_MAX
typedef int ix_short;
#define SIZEOF_IX_SHORT SIZEOF_INT
#define IX_SHORT_MAX INT_MAX
#elif LONG_MAX >= X_SHORT_MAX
typedef long ix_short;
#define SIZEOF_IX_SHORT SIZEOF_LONG
#define IX_SHORT_MAX LONG_MAX
#else
#error "ix_short implementation"
#endif
static void
get_ix_short(const void *xp, ix_short *ip)
{
const uchar *cp = (const uchar *) xp;
*ip = *cp++ << 8;
#if SIZEOF_IX_SHORT > X_SIZEOF_SHORT
if(*ip & 0x8000)
{
/* extern is negative */
*ip |= (~(0xffff)); /* N.B. Assumes "twos complement" */
}
#endif
*ip |= *cp;
}
static void
put_ix_short(void *xp, const ix_short *ip)
{
uchar *cp = (uchar *) xp;
*cp++ = (*ip) >> 8;
*cp = (*ip) & 0xff;
}
int
ncx_get_short_schar(const void *xp, schar *ip)
{
ix_short xx;
get_ix_short(xp, &xx);
*ip = xx;
if(xx > SCHAR_MAX || xx < SCHAR_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_short_uchar(const void *xp, uchar *ip)
{
ix_short xx;
get_ix_short(xp, &xx);
*ip = xx;
if(xx > UCHAR_MAX || xx < 0)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_short_short(const void *xp, short *ip)
{
#if SIZEOF_IX_SHORT == SIZEOF_SHORT && IX_SHORT_MAX == SHORT_MAX
get_ix_short(xp, (ix_short *)ip);
return ENOERR;
#else
ix_short xx;
get_ix_short(xp, &xx);
*ip = xx;
# if IX_SHORT_MAX > SHORT_MAX
if(xx > SHORT_MAX || xx < SHORT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_get_short_int(const void *xp, int *ip)
{
#if SIZEOF_IX_SHORT == SIZEOF_INT && IX_SHORT_MAX == INT_MAX
get_ix_short(xp, (ix_short *)ip);
return ENOERR;
#else
ix_short xx;
get_ix_short(xp, &xx);
*ip = xx;
# if IX_SHORT_MAX > INT_MAX
if(xx > INT_MAX || xx < INT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_get_short_long(const void *xp, long *ip)
{
#if SIZEOF_IX_SHORT == SIZEOF_LONG && IX_SHORT_MAX == LONG_MAX
get_ix_short(xp, (ix_short *)ip);
return ENOERR;
#else
/* assert(LONG_MAX >= X_SHORT_MAX); */
ix_short xx;
get_ix_short(xp, &xx);
*ip = xx;
return ENOERR;
#endif
}
int
ncx_get_short_float(const void *xp, float *ip)
{
ix_short xx;
get_ix_short(xp, &xx);
*ip = xx;
#if 0 /* TODO: determine when necessary */
if(xx > FLT_MAX || xx < (-FLT_MAX))
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_get_short_double(const void *xp, double *ip)
{
/* assert(DBL_MAX >= X_SHORT_MAX); */
ix_short xx;
get_ix_short(xp, &xx);
*ip = xx;
return ENOERR;
}
int
ncx_put_short_schar(void *xp, const schar *ip)
{
uchar *cp = (uchar *) xp;
if(*ip & 0x80)
*cp++ = 0xff;
else
*cp++ = 0;
*cp = (uchar)*ip;
return ENOERR;
}
int
ncx_put_short_uchar(void *xp, const uchar *ip)
{
uchar *cp = (uchar *) xp;
*cp++ = 0;
*cp = *ip;
return ENOERR;
}
int
ncx_put_short_short(void *xp, const short *ip)
{
#if SIZEOF_IX_SHORT == SIZEOF_SHORT && X_SHORT_MAX == SHORT_MAX
put_ix_short(xp, (const ix_short *)ip);
return ENOERR;
#else
ix_short xx = (ix_short)*ip;
put_ix_short(xp, &xx);
# if X_SHORT_MAX < SHORT_MAX
if(*ip > X_SHORT_MAX || *ip < X_SHORT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_put_short_int(void *xp, const int *ip)
{
#if SIZEOF_IX_SHORT == SIZEOF_INT && X_SHORT_MAX == INT_MAX
put_ix_short(xp, (const ix_short *)ip);
return ENOERR;
#else
ix_short xx = (ix_short)*ip;
put_ix_short(xp, &xx);
# if X_SHORT_MAX < INT_MAX
if(*ip > X_SHORT_MAX || *ip < X_SHORT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_put_short_long(void *xp, const long *ip)
{
#if SIZEOF_IX_SHORT == SIZEOF_LONG && X_SHORT_MAX == LONG_MAX
put_ix_short(xp, (const ix_short *)ip);
return ENOERR;
#else
ix_short xx = (ix_short)*ip;
put_ix_short(xp, &xx);
# if X_SHORT_MAX < LONG_MAX
if(*ip > X_SHORT_MAX || *ip < X_SHORT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_put_short_float(void *xp, const float *ip)
{
ix_short xx = *ip;
put_ix_short(xp, &xx);
if(*ip > X_SHORT_MAX || *ip < X_SHORT_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_put_short_double(void *xp, const double *ip)
{
ix_short xx = *ip;
put_ix_short(xp, &xx);
if(*ip > X_SHORT_MAX || *ip < X_SHORT_MIN)
return NC_ERANGE;
return ENOERR;
}
/* x_int */
#if SHORT_MAX == X_INT_MAX
typedef short ix_int;
#define SIZEOF_IX_INT SIZEOF_SHORT
#define IX_INT_MAX SHORT_MAX
#elif INT_MAX >= X_INT_MAX
typedef int ix_int;
#define SIZEOF_IX_INT SIZEOF_INT
#define IX_INT_MAX INT_MAX
#elif LONG_MAX >= X_INT_MAX
typedef long ix_int;
#define SIZEOF_IX_INT SIZEOF_LONG
#define IX_INT_MAX LONG_MAX
#else
#error "ix_int implementation"
#endif
static void
get_ix_int(const void *xp, ix_int *ip)
{
const uchar *cp = (const uchar *) xp;
*ip = *cp++ << 24;
#if SIZEOF_IX_INT > X_SIZEOF_INT
if(*ip & 0x80000000)
{
/* extern is negative */
*ip |= (~(0xffffffff)); /* N.B. Assumes "twos complement" */
}
#endif
*ip |= (*cp++ << 16);
*ip |= (*cp++ << 8);
*ip |= *cp;
}
static void
put_ix_int(void *xp, const ix_int *ip)
{
uchar *cp = (uchar *) xp;
*cp++ = (*ip) >> 24;
*cp++ = ((*ip) & 0x00ff0000) >> 16;
*cp++ = ((*ip) & 0x0000ff00) >> 8;
*cp = ((*ip) & 0x000000ff);
}
int
ncx_get_int_schar(const void *xp, schar *ip)
{
ix_int xx;
get_ix_int(xp, &xx);
*ip = xx;
if(xx > SCHAR_MAX || xx < SCHAR_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_int_uchar(const void *xp, uchar *ip)
{
ix_int xx;
get_ix_int(xp, &xx);
*ip = xx;
if(xx > UCHAR_MAX || xx < 0)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_int_short(const void *xp, short *ip)
{
#if SIZEOF_IX_INT == SIZEOF_SHORT && IX_INT_MAX == SHORT_MAX
get_ix_int(xp, (ix_int *)ip);
return ENOERR;
#else
ix_int xx;
get_ix_int(xp, &xx);
*ip = xx;
# if IX_INT_MAX > SHORT_MAX
if(xx > SHORT_MAX || xx < SHORT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_get_int_int(const void *xp, int *ip)
{
#if SIZEOF_IX_INT == SIZEOF_INT && IX_INT_MAX == INT_MAX
get_ix_int(xp, (ix_int *)ip);
return ENOERR;
#else
ix_int xx;
get_ix_int(xp, &xx);
*ip = xx;
# if IX_INT_MAX > INT_MAX
if(xx > INT_MAX || xx < INT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_get_int_long(const void *xp, long *ip)
{
#if SIZEOF_IX_INT == SIZEOF_LONG && IX_INT_MAX == LONG_MAX
get_ix_int(xp, (ix_int *)ip);
return ENOERR;
#else
ix_int xx;
get_ix_int(xp, &xx);
*ip = xx;
# if IX_INT_MAX > LONG_MAX /* unlikely */
if(xx > LONG_MAX || xx < LONG_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_get_int_float(const void *xp, float *ip)
{
ix_int xx;
get_ix_int(xp, &xx);
*ip = xx;
#if 0 /* TODO: determine when necessary */
if(xx > FLT_MAX || xx < (-FLT_MAX))
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_get_int_double(const void *xp, double *ip)
{
/* assert((DBL_MAX >= X_INT_MAX); */
ix_int xx;
get_ix_int(xp, &xx);
*ip = xx;
return ENOERR;
}
int
ncx_put_int_schar(void *xp, const schar *ip)
{
uchar *cp = (uchar *) xp;
if(*ip & 0x80)
{
*cp++ = 0xff;
*cp++ = 0xff;
*cp++ = 0xff;
}
else
{
*cp++ = 0x00;
*cp++ = 0x00;
*cp++ = 0x00;
}
*cp = (uchar)*ip;
return ENOERR;
}
int
ncx_put_int_uchar(void *xp, const uchar *ip)
{
uchar *cp = (uchar *) xp;
*cp++ = 0x00;
*cp++ = 0x00;
*cp++ = 0x00;
*cp = *ip;
return ENOERR;
}
int
ncx_put_int_short(void *xp, const short *ip)
{
#if SIZEOF_IX_INT == SIZEOF_SHORT && IX_INT_MAX == SHORT_MAX
put_ix_int(xp, (ix_int *)ip);
return ENOERR;
#else
ix_int xx = (ix_int)(*ip);
put_ix_int(xp, &xx);
# if IX_INT_MAX < SHORT_MAX
if(*ip > X_INT_MAX || *ip < X_INT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_put_int_int(void *xp, const int *ip)
{
#if SIZEOF_IX_INT == SIZEOF_INT && IX_INT_MAX == INT_MAX
put_ix_int(xp, (ix_int *)ip);
return ENOERR;
#else
ix_int xx = (ix_int)(*ip);
put_ix_int(xp, &xx);
# if IX_INT_MAX < INT_MAX
if(*ip > X_INT_MAX || *ip < X_INT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_put_int_long(void *xp, const long *ip)
{
#if SIZEOF_IX_INT == SIZEOF_LONG && IX_INT_MAX == LONG_MAX
put_ix_int(xp, (ix_int *)ip);
return ENOERR;
#else
ix_int xx = (ix_int)(*ip);
put_ix_int(xp, &xx);
# if IX_INT_MAX < LONG_MAX
if(*ip > X_INT_MAX || *ip < X_INT_MIN)
return NC_ERANGE;
# endif
return ENOERR;
#endif
}
int
ncx_put_int_float(void *xp, const float *ip)
{
ix_int xx = (ix_int)(*ip);
put_ix_int(xp, &xx);
if(*ip > (double)X_INT_MAX || *ip < (double)X_INT_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_put_int_double(void *xp, const double *ip)
{
ix_int xx = (ix_int)(*ip);
put_ix_int(xp, &xx);
if(*ip > X_INT_MAX || *ip < X_INT_MIN)
return NC_ERANGE;
return ENOERR;
}
/* x_float */
#if X_SIZEOF_FLOAT == SIZEOF_FLOAT && !defined(NO_IEEE_FLOAT)
static void
get_ix_float(const void *xp, float *ip)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(ip, xp, sizeof(float));
#else
swap4b(ip, xp);
#endif
}
static void
put_ix_float(void *xp, const float *ip)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(xp, ip, X_SIZEOF_FLOAT);
#else
swap4b(xp, ip);
#endif
}
#elif vax
/* What IEEE single precision floating point looks like on a Vax */
struct ieee_single {
unsigned int exp_hi : 7;
unsigned int sign : 1;
unsigned int mant_hi : 7;
unsigned int exp_lo : 1;
unsigned int mant_lo_hi : 8;
unsigned int mant_lo_lo : 8;
};
/* Vax single precision floating point */
struct vax_single {
unsigned int mantissa1 : 7;
unsigned int exp : 8;
unsigned int sign : 1;
unsigned int mantissa2 : 16;
};
#define VAX_SNG_BIAS 0x81
#define IEEE_SNG_BIAS 0x7f
static struct sgl_limits {
struct vax_single s;
struct ieee_single ieee;
} max = {
{ 0x7f, 0xff, 0x0, 0xffff }, /* Max Vax */
{ 0x7f, 0x0, 0x0, 0x1, 0x0, 0x0 } /* Max IEEE */
};
static struct sgl_limits min = {
{ 0x0, 0x0, 0x0, 0x0 }, /* Min Vax */
{ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 } /* Min IEEE */
};
dnl dnl dnl
dnl
dnl GET_VAX_DFLOAT_Body(xp) (body for get_ix_float)
dnl
define(`GET_VAX_DFLOAT_Body',dnl
`dnl
struct vax_single *const vsp = (struct vax_single *) ip;
const struct ieee_single *const isp =
(const struct ieee_single *) $1;
unsigned exp = isp->exp_hi << 1 | isp->exp_lo;
switch(exp) {
case 0 :
/* ieee subnormal */
if(isp->mant_hi == min.ieee.mant_hi
&& isp->mant_lo_hi == min.ieee.mant_lo_hi
&& isp->mant_lo_lo == min.ieee.mant_lo_lo)
{
*vsp = min.s;
}
else
{
unsigned mantissa = (isp->mant_hi << 16)
| isp->mant_lo_hi << 8
| isp->mant_lo_lo;
unsigned tmp = mantissa >> 20;
if(tmp >= 4) {
vsp->exp = 2;
} else if (tmp >= 2) {
vsp->exp = 1;
} else {
*vsp = min.s;
break;
} /* else */
tmp = mantissa - (1 << (20 + vsp->exp ));
tmp <<= 3 - vsp->exp;
vsp->mantissa2 = tmp;
vsp->mantissa1 = (tmp >> 16);
}
break;
case 0xfe :
case 0xff :
*vsp = max.s;
break;
default :
vsp->exp = exp - IEEE_SNG_BIAS + VAX_SNG_BIAS;
vsp->mantissa2 = isp->mant_lo_hi << 8 | isp->mant_lo_lo;
vsp->mantissa1 = isp->mant_hi;
}
vsp->sign = isp->sign;
')dnl
static void
get_ix_float(const void *xp, float *ip)
{
GET_VAX_DFLOAT_Body(xp)
}
dnl dnl dnl
dnl
dnl PUT_VAX_DFLOAT_Body(xp) (body for get_ix_float)
dnl
define(`PUT_VAX_DFLOAT_Body',dnl
`dnl
const struct vax_single *const vsp =
(const struct vax_single *)ip;
struct ieee_single *const isp = (struct ieee_single *) $1;
switch(vsp->exp){
case 0 :
/* all vax float with zero exponent map to zero */
*isp = min.ieee;
break;
case 2 :
case 1 :
{
/* These will map to subnormals */
unsigned mantissa = (vsp->mantissa1 << 16)
| vsp->mantissa2;
mantissa >>= 3 - vsp->exp;
mantissa += (1 << (20 + vsp->exp));
isp->mant_lo_lo = mantissa;
isp->mant_lo_hi = mantissa >> 8;
isp->mant_hi = mantissa >> 16;
isp->exp_lo = 0;
isp->exp_hi = 0;
}
break;
case 0xff : /* max.s.exp */
if( vsp->mantissa2 == max.s.mantissa2
&& vsp->mantissa1 == max.s.mantissa1)
{
/* map largest vax float to ieee infinity */
*isp = max.ieee;
break;
} /* else, fall thru */
default :
{
unsigned exp = vsp->exp - VAX_SNG_BIAS + IEEE_SNG_BIAS;
isp->exp_hi = exp >> 1;
isp->exp_lo = exp;
isp->mant_lo_lo = vsp->mantissa2;
isp->mant_lo_hi = vsp->mantissa2 >> 8;
isp->mant_hi = vsp->mantissa1;
}
}
isp->sign = vsp->sign;
')dnl
static void
put_ix_float(void *xp, const float *ip)
{
PUT_VAX_DFLOAT_Body(xp)
}
/* vax */
#elif defined(_CRAY) && !defined(__crayx1)
/*
* Return the number of bytes until the next "word" boundary
* N.B. This is based on the very wierd YMP address structure,
* which puts the address within a word in the leftmost 3 bits
* of the address.
*/
static size_t
word_align(const void *vp)
{
const size_t rem = ((size_t)vp >> (64 - 3)) & 0x7;
return (rem != 0);
}
struct ieee_single_hi {
unsigned int sign : 1;
unsigned int exp : 8;
unsigned int mant :23;
unsigned int pad :32;
};
typedef struct ieee_single_hi ieee_single_hi;
struct ieee_single_lo {
unsigned int pad :32;
unsigned int sign : 1;
unsigned int exp : 8;
unsigned int mant :23;
};
typedef struct ieee_single_lo ieee_single_lo;
static const int ieee_single_bias = 0x7f;
struct ieee_double {
unsigned int sign : 1;
unsigned int exp :11;
unsigned int mant :52;
};
typedef struct ieee_double ieee_double;
static const int ieee_double_bias = 0x3ff;
#if defined(NO_IEEE_FLOAT)
struct cray_single {
unsigned int sign : 1;
unsigned int exp :15;
unsigned int mant :48;
};
typedef struct cray_single cray_single;
static const int cs_ieis_bias = 0x4000 - 0x7f;
static const int cs_id_bias = 0x4000 - 0x3ff;
dnl dnl dnl
dnl
dnl GET_IX_FLOAT_Body (body for get_ix_float)
dnl
define(`GET_IX_FLOAT_Body',dnl
`dnl
cray_single *csp = (cray_single *) ip;
if(isp->exp == 0)
{
/* ieee subnormal */
*ip = (double)isp->mant;
if(isp->mant != 0)
{
csp->exp -= (ieee_single_bias + 22);
}
}
else
{
csp->exp = isp->exp + cs_ieis_bias + 1;
csp->mant = isp->mant << (48 - 1 - 23);
csp->mant |= (1 << (48 - 1));
}
csp->sign = isp->sign;
')dnl
dnl dnl dnl
dnl
dnl PUT_IX_FLOAT_Body (body for put_ix_float)
dnl
define(`PUT_IX_FLOAT_Body',dnl
`dnl
const cray_single *csp = (const cray_single *) ip;
int ieee_exp = csp->exp - cs_ieis_bias -1;
isp->sign = csp->sign;
if(ieee_exp >= 0xff)
{
/* NC_ERANGE => ieee Inf */
isp->exp = 0xff;
isp->mant = 0x0;
}
else if(ieee_exp > 0)
{
/* normal ieee representation */
isp->exp = ieee_exp;
/* assumes cray rep is in normal form */
assert(csp->mant & 0x800000000000);
isp->mant = (((csp->mant << 1) &
0xffffffffffff) >> (48 - 23));
}
else if(ieee_exp > -23)
{
/* ieee subnormal, right shift */
const int rshift = (48 - 23 - ieee_exp);
isp->mant = csp->mant >> rshift;
#if 0
if(csp->mant & (1 << (rshift -1)))
{
/* round up */
isp->mant++;
}
#endif
isp->exp = 0;
}
else
{
/* smaller than ieee can represent */
isp->exp = 0;
isp->mant = 0;
}
')dnl
static void
get_ix_float(const void *xp, float *ip)
{
if(word_align(xp) == 0)
{
const ieee_single_hi *isp = (const ieee_single_hi *) xp;
GET_IX_FLOAT_Body
}
else
{
const ieee_single_lo *isp = (const ieee_single_lo *) xp;
GET_IX_FLOAT_Body
}
}
static void
put_ix_float(void *xp, const float *ip)
{
if(word_align(xp) == 0)
{
ieee_single_hi *isp = (ieee_single_hi*)xp;
PUT_IX_FLOAT_Body
}
else
{
ieee_single_lo *isp = (ieee_single_lo*)xp;
PUT_IX_FLOAT_Body
}
}
#else
/* IEEE Cray with only doubles */
static void
get_ix_float(const void *xp, float *ip)
{
ieee_double *idp = (ieee_double *) ip;
if(word_align(xp) == 0)
{
const ieee_single_hi *isp = (const ieee_single_hi *) xp;
if(isp->exp == 0 && isp->mant == 0)
{
idp->exp = 0;
idp->mant = 0;
}
else
{
idp->exp = isp->exp + (ieee_double_bias - ieee_single_bias);
idp->mant = isp->mant << (52 - 23);
}
idp->sign = isp->sign;
}
else
{
const ieee_single_lo *isp = (const ieee_single_lo *) xp;
if(isp->exp == 0 && isp->mant == 0)
{
idp->exp = 0;
idp->mant = 0;
}
else
{
idp->exp = isp->exp + (ieee_double_bias - ieee_single_bias);
idp->mant = isp->mant << (52 - 23);
}
idp->sign = isp->sign;
}
}
static void
put_ix_float(void *xp, const float *ip)
{
const ieee_double *idp = (const ieee_double *) ip;
if(word_align(xp) == 0)
{
ieee_single_hi *isp = (ieee_single_hi*)xp;
if(idp->exp > (ieee_double_bias - ieee_single_bias))
isp->exp = idp->exp - (ieee_double_bias - ieee_single_bias);
else
isp->exp = 0;
isp->mant = idp->mant >> (52 - 23);
isp->sign = idp->sign;
}
else
{
ieee_single_lo *isp = (ieee_single_lo*)xp;
if(idp->exp > (ieee_double_bias - ieee_single_bias))
isp->exp = idp->exp - (ieee_double_bias - ieee_single_bias);
else
isp->exp = 0;
isp->mant = idp->mant >> (52 - 23);
isp->sign = idp->sign;
}
}
#endif
#else
#error "ix_float implementation"
#endif
int
ncx_get_float_schar(const void *xp, schar *ip)
{
float xx;
get_ix_float(xp, &xx);
*ip = (schar) xx;
if(xx > SCHAR_MAX || xx < SCHAR_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_float_uchar(const void *xp, uchar *ip)
{
float xx;
get_ix_float(xp, &xx);
*ip = (uchar) xx;
if(xx > UCHAR_MAX || xx < 0)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_float_short(const void *xp, short *ip)
{
float xx;
get_ix_float(xp, &xx);
*ip = (short) xx;
if(xx > SHORT_MAX || xx < SHORT_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_float_int(const void *xp, int *ip)
{
float xx;
get_ix_float(xp, &xx);
*ip = (int) xx;
if(xx > (double)INT_MAX || xx < (double)INT_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_float_long(const void *xp, long *ip)
{
float xx;
get_ix_float(xp, &xx);
*ip = (long) xx;
if(xx > LONG_MAX || xx < LONG_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_float_float(const void *xp, float *ip)
{
/* TODO */
get_ix_float(xp, ip);
return ENOERR;
}
int
ncx_get_float_double(const void *xp, double *ip)
{
/* TODO */
float xx;
get_ix_float(xp, &xx);
*ip = xx;
return ENOERR;
}
int
ncx_put_float_schar(void *xp, const schar *ip)
{
float xx = (float) *ip;
put_ix_float(xp, &xx);
return ENOERR;
}
int
ncx_put_float_uchar(void *xp, const uchar *ip)
{
float xx = (float) *ip;
put_ix_float(xp, &xx);
return ENOERR;
}
int
ncx_put_float_short(void *xp, const short *ip)
{
float xx = (float) *ip;
put_ix_float(xp, &xx);
#if 0 /* TODO: figure this out */
if((float)(*ip) > X_FLOAT_MAX || (float)(*ip) < X_FLOAT_MIN)
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_put_float_int(void *xp, const int *ip)
{
float xx = (float) *ip;
put_ix_float(xp, &xx);
#if 1 /* TODO: figure this out */
if((float)(*ip) > X_FLOAT_MAX || (float)(*ip) < X_FLOAT_MIN)
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_put_float_long(void *xp, const long *ip)
{
float xx = (float) *ip;
put_ix_float(xp, &xx);
#if 1 /* TODO: figure this out */
if((float)(*ip) > X_FLOAT_MAX || (float)(*ip) < X_FLOAT_MIN)
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_put_float_float(void *xp, const float *ip)
{
put_ix_float(xp, ip);
#ifdef NO_IEEE_FLOAT
if(*ip > X_FLOAT_MAX || *ip < X_FLOAT_MIN)
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_put_float_double(void *xp, const double *ip)
{
float xx = (float) *ip;
put_ix_float(xp, &xx);
if(*ip > X_FLOAT_MAX || *ip < X_FLOAT_MIN)
return NC_ERANGE;
return ENOERR;
}
/* x_double */
#if X_SIZEOF_DOUBLE == SIZEOF_DOUBLE && !defined(NO_IEEE_FLOAT)
static void
get_ix_double(const void *xp, double *ip)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(ip, xp, sizeof(double));
#else
swap8b(ip, xp);
#endif
}
static void
put_ix_double(void *xp, const double *ip)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(xp, ip, X_SIZEOF_DOUBLE);
#else
swap8b(xp, ip);
#endif
}
#elif vax
/* What IEEE double precision floating point looks like on a Vax */
struct ieee_double {
unsigned int exp_hi : 7;
unsigned int sign : 1;
unsigned int mant_6 : 4;
unsigned int exp_lo : 4;
unsigned int mant_5 : 8;
unsigned int mant_4 : 8;
unsigned int mant_lo : 32;
};
/* Vax double precision floating point */
struct vax_double {
unsigned int mantissa1 : 7;
unsigned int exp : 8;
unsigned int sign : 1;
unsigned int mantissa2 : 16;
unsigned int mantissa3 : 16;
unsigned int mantissa4 : 16;
};
#define VAX_DBL_BIAS 0x81
#define IEEE_DBL_BIAS 0x3ff
#define MASK(nbits) ((1 << nbits) - 1)
static const struct dbl_limits {
struct vax_double d;
struct ieee_double ieee;
} dbl_limits[2] = {
{{ 0x7f, 0xff, 0x0, 0xffff, 0xffff, 0xffff }, /* Max Vax */
{ 0x7f, 0x0, 0x0, 0xf, 0x0, 0x0, 0x0}}, /* Max IEEE */
{{ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, /* Min Vax */
{ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, /* Min IEEE */
};
dnl dnl dnl
dnl
dnl GET_VAX_DDOUBLE_Body(xp) (body for get_ix_double)
dnl
define(`GET_VAX_DDOUBLE_Body',dnl
`dnl
struct vax_double *const vdp =
(struct vax_double *)ip;
const struct ieee_double *const idp =
(const struct ieee_double *) $1;
{
const struct dbl_limits *lim;
int ii;
for (ii = 0, lim = dbl_limits;
ii < sizeof(dbl_limits)/sizeof(struct dbl_limits);
ii++, lim++)
{
if ((idp->mant_lo == lim->ieee.mant_lo)
&& (idp->mant_4 == lim->ieee.mant_4)
&& (idp->mant_5 == lim->ieee.mant_5)
&& (idp->mant_6 == lim->ieee.mant_6)
&& (idp->exp_lo == lim->ieee.exp_lo)
&& (idp->exp_hi == lim->ieee.exp_hi)
)
{
*vdp = lim->d;
goto doneit;
}
}
}
{
unsigned exp = idp->exp_hi << 4 | idp->exp_lo;
vdp->exp = exp - IEEE_DBL_BIAS + VAX_DBL_BIAS;
}
{
unsigned mant_hi = ((idp->mant_6 << 16)
| (idp->mant_5 << 8)
| idp->mant_4);
unsigned mant_lo = SWAP4(idp->mant_lo);
vdp->mantissa1 = (mant_hi >> 13);
vdp->mantissa2 = ((mant_hi & MASK(13)) << 3)
| (mant_lo >> 29);
vdp->mantissa3 = (mant_lo >> 13);
vdp->mantissa4 = (mant_lo << 3);
}
doneit:
vdp->sign = idp->sign;
')dnl
static void
get_ix_double(const void *xp, double *ip)
{
GET_VAX_DDOUBLE_Body(xp)
}
dnl dnl dnl
dnl
dnl PUT_VAX_DDOUBLE_Body(xp) (body for put_ix_double)
dnl
define(`PUT_VAX_DDOUBLE_Body',dnl
`dnl
const struct vax_double *const vdp =
(const struct vax_double *)ip;
struct ieee_double *const idp =
(struct ieee_double *) $1;
if ((vdp->mantissa4 > (dbl_limits[0].d.mantissa4 - 3)) &&
(vdp->mantissa3 == dbl_limits[0].d.mantissa3) &&
(vdp->mantissa2 == dbl_limits[0].d.mantissa2) &&
(vdp->mantissa1 == dbl_limits[0].d.mantissa1) &&
(vdp->exp == dbl_limits[0].d.exp))
{
*idp = dbl_limits[0].ieee;
goto shipit;
}
if ((vdp->mantissa4 == dbl_limits[1].d.mantissa4) &&
(vdp->mantissa3 == dbl_limits[1].d.mantissa3) &&
(vdp->mantissa2 == dbl_limits[1].d.mantissa2) &&
(vdp->mantissa1 == dbl_limits[1].d.mantissa1) &&
(vdp->exp == dbl_limits[1].d.exp))
{
*idp = dbl_limits[1].ieee;
goto shipit;
}
{
unsigned exp = vdp->exp - VAX_DBL_BIAS + IEEE_DBL_BIAS;
unsigned mant_lo = ((vdp->mantissa2 & MASK(3)) << 29) |
(vdp->mantissa3 << 13) |
((vdp->mantissa4 >> 3) & MASK(13));
unsigned mant_hi = (vdp->mantissa1 << 13)
| (vdp->mantissa2 >> 3);
if((vdp->mantissa4 & 7) > 4)
{
/* round up */
mant_lo++;
if(mant_lo == 0)
{
mant_hi++;
if(mant_hi > 0xffffff)
{
mant_hi = 0;
exp++;
}
}
}
idp->mant_lo = SWAP4(mant_lo);
idp->mant_6 = mant_hi >> 16;
idp->mant_5 = (mant_hi & 0xff00) >> 8;
idp->mant_4 = mant_hi;
idp->exp_hi = exp >> 4;
idp->exp_lo = exp;
}
shipit:
idp->sign = vdp->sign;
')dnl
static void
put_ix_double(void *xp, const double *ip)
{
PUT_VAX_DDOUBLE_Body(xp)
}
/* vax */
#elif defined(_CRAY) && !defined(__crayx1)
static void
get_ix_double(const void *xp, double *ip)
{
const ieee_double *idp = (const ieee_double *) xp;
cray_single *csp = (cray_single *) ip;
if(idp->exp == 0)
{
/* ieee subnormal */
*ip = (double)idp->mant;
if(idp->mant != 0)
{
csp->exp -= (ieee_double_bias + 51);
}
}
else
{
csp->exp = idp->exp + cs_id_bias + 1;
csp->mant = idp->mant >> (52 - 48 + 1);
csp->mant |= (1 << (48 - 1));
}
csp->sign = idp->sign;
}
static void
put_ix_double(void *xp, const double *ip)
{
ieee_double *idp = (ieee_double *) xp;
const cray_single *csp = (const cray_single *) ip;
int ieee_exp = csp->exp - cs_id_bias -1;
idp->sign = csp->sign;
if(ieee_exp >= 0x7ff)
{
/* NC_ERANGE => ieee Inf */
idp->exp = 0x7ff;
idp->mant = 0x0;
}
else if(ieee_exp > 0)
{
/* normal ieee representation */
idp->exp = ieee_exp;
/* assumes cray rep is in normal form */
assert(csp->mant & 0x800000000000);
idp->mant = (((csp->mant << 1) &
0xffffffffffff) << (52 - 48));
}
else if(ieee_exp >= (-(52 -48)))
{
/* ieee subnormal, left shift */
const int lshift = (52 - 48) + ieee_exp;
idp->mant = csp->mant << lshift;
idp->exp = 0;
}
else if(ieee_exp >= -52)
{
/* ieee subnormal, right shift */
const int rshift = (- (52 - 48) - ieee_exp);
idp->mant = csp->mant >> rshift;
#if 0
if(csp->mant & (1 << (rshift -1)))
{
/* round up */
idp->mant++;
}
#endif
idp->exp = 0;
}
else
{
/* smaller than ieee can represent */
idp->exp = 0;
idp->mant = 0;
}
}
#else
#error "ix_double implementation"
#endif
int
ncx_get_double_schar(const void *xp, schar *ip)
{
double xx;
get_ix_double(xp, &xx);
*ip = (schar) xx;
if(xx > SCHAR_MAX || xx < SCHAR_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_double_uchar(const void *xp, uchar *ip)
{
double xx;
get_ix_double(xp, &xx);
*ip = (uchar) xx;
if(xx > UCHAR_MAX || xx < 0)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_double_short(const void *xp, short *ip)
{
double xx;
get_ix_double(xp, &xx);
*ip = (short) xx;
if(xx > SHORT_MAX || xx < SHORT_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_double_int(const void *xp, int *ip)
{
double xx;
get_ix_double(xp, &xx);
*ip = (int) xx;
if(xx > INT_MAX || xx < INT_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_double_long(const void *xp, long *ip)
{
double xx;
get_ix_double(xp, &xx);
*ip = (long) xx;
if(xx > LONG_MAX || xx < LONG_MIN)
return NC_ERANGE;
return ENOERR;
}
int
ncx_get_double_float(const void *xp, float *ip)
{
double xx;
get_ix_double(xp, &xx);
if(xx > FLT_MAX || xx < (-FLT_MAX))
{
*ip = FLT_MAX;
return NC_ERANGE;
}
if(xx < (-FLT_MAX))
{
*ip = (-FLT_MAX);
return NC_ERANGE;
}
*ip = (float) xx;
return ENOERR;
}
int
ncx_get_double_double(const void *xp, double *ip)
{
/* TODO */
get_ix_double(xp, ip);
return ENOERR;
}
int
ncx_put_double_schar(void *xp, const schar *ip)
{
double xx = (double) *ip;
put_ix_double(xp, &xx);
return ENOERR;
}
int
ncx_put_double_uchar(void *xp, const uchar *ip)
{
double xx = (double) *ip;
put_ix_double(xp, &xx);
return ENOERR;
}
int
ncx_put_double_short(void *xp, const short *ip)
{
double xx = (double) *ip;
put_ix_double(xp, &xx);
#if 0 /* TODO: figure this out */
if((double)(*ip) > X_DOUBLE_MAX || (double)(*ip) < X_DOUBLE_MIN)
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_put_double_int(void *xp, const int *ip)
{
double xx = (double) *ip;
put_ix_double(xp, &xx);
#if 0 /* TODO: figure this out */
if((double)(*ip) > X_DOUBLE_MAX || (double)(*ip) < X_DOUBLE_MIN)
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_put_double_long(void *xp, const long *ip)
{
double xx = (double) *ip;
put_ix_double(xp, &xx);
#if 1 /* TODO: figure this out */
if((double)(*ip) > X_DOUBLE_MAX || (double)(*ip) < X_DOUBLE_MIN)
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_put_double_float(void *xp, const float *ip)
{
double xx = (double) *ip;
put_ix_double(xp, &xx);
#if 1 /* TODO: figure this out */
if((double)(*ip) > X_DOUBLE_MAX || (double)(*ip) < X_DOUBLE_MIN)
return NC_ERANGE;
#endif
return ENOERR;
}
int
ncx_put_double_double(void *xp, const double *ip)
{
put_ix_double(xp, ip);
#ifdef NO_IEEE_FLOAT
if(*ip > X_DOUBLE_MAX || *ip < X_DOUBLE_MIN)
return NC_ERANGE;
#endif
return ENOERR;
}
/* x_size_t */
#if SIZEOF_SIZE_T < X_SIZEOF_SIZE_T
#error "x_size_t implementation"
/* netcdf requires size_t which can hold a values from 0 to 2^32 -1 */
#endif
int
ncx_put_size_t(void **xpp, const size_t *ulp)
{
/* similar to put_ix_int() */
uchar *cp = (uchar *) *xpp;
assert(*ulp <= X_SIZE_MAX);
*cp++ = (uchar)((*ulp) >> 24);
*cp++ = (uchar)(((*ulp) & 0x00ff0000) >> 16);
*cp++ = (uchar)(((*ulp) & 0x0000ff00) >> 8);
*cp = (uchar)((*ulp) & 0x000000ff);
*xpp = (void *)((char *)(*xpp) + X_SIZEOF_SIZE_T);
return ENOERR;
}
int
ncx_get_size_t(const void **xpp, size_t *ulp)
{
/* similar to get_ix_int */
const uchar *cp = (const uchar *) *xpp;
*ulp = (unsigned)(*cp++ << 24);
*ulp |= (*cp++ << 16);
*ulp |= (*cp++ << 8);
*ulp |= *cp;
*xpp = (const void *)((const char *)(*xpp) + X_SIZEOF_SIZE_T);
return ENOERR;
}
/* x_off_t */
int
ncx_put_off_t(void **xpp, const off_t *lp, size_t sizeof_off_t)
{
/* similar to put_ix_int() */
uchar *cp = (uchar *) *xpp;
/* No negative offsets stored in netcdf */
if (*lp < 0) {
/* Assume this is an overflow of a 32-bit int... */
return ERANGE;
}
assert(sizeof_off_t == 4 || sizeof_off_t == 8);
if (sizeof_off_t == 4) {
*cp++ = (uchar) ((*lp) >> 24);
*cp++ = (uchar)(((*lp) & 0x00ff0000) >> 16);
*cp++ = (uchar)(((*lp) & 0x0000ff00) >> 8);
*cp = (uchar)( (*lp) & 0x000000ff);
} else {
#if SIZEOF_OFF_T == 4
/* Write a 64-bit offset on a system with only a 32-bit offset */
*cp++ = (uchar)0;
*cp++ = (uchar)0;
*cp++ = (uchar)0;
*cp++ = (uchar)0;
*cp++ = (uchar)(((*lp) & 0xff000000) >> 24);
*cp++ = (uchar)(((*lp) & 0x00ff0000) >> 16);
*cp++ = (uchar)(((*lp) & 0x0000ff00) >> 8);
*cp = (uchar)( (*lp) & 0x000000ff);
#else
*cp++ = (uchar) ((*lp) >> 56);
*cp++ = (uchar)(((*lp) & 0x00ff000000000000ULL) >> 48);
*cp++ = (uchar)(((*lp) & 0x0000ff0000000000ULL) >> 40);
*cp++ = (uchar)(((*lp) & 0x000000ff00000000ULL) >> 32);
*cp++ = (uchar)(((*lp) & 0x00000000ff000000ULL) >> 24);
*cp++ = (uchar)(((*lp) & 0x0000000000ff0000ULL) >> 16);
*cp++ = (uchar)(((*lp) & 0x000000000000ff00ULL) >> 8);
*cp = (uchar)( (*lp) & 0x00000000000000ffULL);
#endif
}
*xpp = (void *)((char *)(*xpp) + sizeof_off_t);
return ENOERR;
}
int
ncx_get_off_t(const void **xpp, off_t *lp, size_t sizeof_off_t)
{
/* similar to get_ix_int() */
const uchar *cp = (const uchar *) *xpp;
assert(sizeof_off_t == 4 || sizeof_off_t == 8);
if (sizeof_off_t == 4) {
*lp = *cp++ << 24;
*lp |= (*cp++ << 16);
*lp |= (*cp++ << 8);
*lp |= *cp;
} else {
#if SIZEOF_OFF_T == 4
/* Read a 64-bit offset on a system with only a 32-bit offset */
/* If the offset overflows, set an error code and return */
*lp = ((off_t)(*cp++) << 24);
*lp |= ((off_t)(*cp++) << 16);
*lp |= ((off_t)(*cp++) << 8);
*lp |= ((off_t)(*cp++));
/*
* lp now contains the upper 32-bits of the 64-bit offset. if lp is
* not zero, then the dataset is larger than can be represented
* on this system. Set an error code and return.
*/
if (*lp != 0) {
return ERANGE;
}
*lp = ((off_t)(*cp++) << 24);
*lp |= ((off_t)(*cp++) << 16);
*lp |= ((off_t)(*cp++) << 8);
*lp |= (off_t)*cp;
if (*lp < 0) {
/*
* If this fails, then the offset is >2^31, but less
* than 2^32 which is not allowed, but is not caught
* by the previous check
*/
return ERANGE;
}
#else
*lp = ((off_t)(*cp++) << 56);
*lp |= ((off_t)(*cp++) << 48);
*lp |= ((off_t)(*cp++) << 40);
*lp |= ((off_t)(*cp++) << 32);
*lp |= ((off_t)(*cp++) << 24);
*lp |= ((off_t)(*cp++) << 16);
*lp |= ((off_t)(*cp++) << 8);
*lp |= (off_t)*cp;
#endif
}
*xpp = (const void *)((const char *)(*xpp) + sizeof_off_t);
return ENOERR;
}
/*
* Aggregate numeric conversion functions.
*/
dnl dnl dnl
dnl
dnl Upcase(str)
dnl
define(`Upcase',dnl
`dnl
translit($1, abcdefghijklmnopqrstuvwxyz, ABCDEFGHIJKLMNOPQRSTUVWXYZ)')dnl
dnl
dnl dnl dnl
dnl
dnl sjl: some macros used for putn/getn:
define(`Isizeof', ``SIZEOF_'Upcase($1)')dnl
define(`Xsizeof', ``X_SIZEOF_'Upcase($1)')dnl
define(`Imax', `Upcase($1)`_MAX'')dnl
define(`Imin', `Upcase($1)`_MIN'')dnl
define(`Xmax', ``X_'Upcase($1)`_MAX'')dnl
define(`Xmin', ``X_'Upcase($1)`_MIN'')dnl
define(`ImaxExp', `Upcase($1)`_MAX_EXP'')dnl
dnl
dnl dnl dnl
dnl
dnl NCX_GETN_Byte_Body (body for one byte types on diagonal)
dnl
define(`NCX_GETN_Byte_Body',dnl
`dnl
(void) memcpy(tp, *xpp, nelems);
*xpp = (void *)((char *)(*xpp) + nelems);
return ENOERR;
')dnl
dnl dnl dnl
dnl
dnl NCX_PAD_GETN_Byte_body (body for one byte types on diagonal)
dnl
define(`NCX_PAD_GETN_Byte_Body',dnl
`dnl
size_t rndup = nelems % X_ALIGN;
if(rndup)
rndup = X_ALIGN - rndup;
(void) memcpy(tp, *xpp, nelems);
*xpp = (void *)((char *)(*xpp) + nelems + rndup);
return ENOERR;
')dnl
dnl dnl dnl
dnl
dnl NCX_GETN_SCHAR(Type)
dnl
define(`NCX_GETN_SCHAR',dnl
`dnl
int
ncx_getn_schar_$1(const void **xpp, size_t nelems, $1 *tp)
{
schar *xp = (schar *)(*xpp);
while(nelems-- != 0)
{
*tp++ = *xp++;
}
*xpp = (const void *)xp;
return ENOERR;
}
')dnl
dnl dnl dnl
dnl
dnl NCX_PAD_GETN_SCHAR(Type)
dnl
define(`NCX_PAD_GETN_SCHAR',dnl
`dnl
int
ncx_pad_getn_schar_$1(const void **xpp, size_t nelems, $1 *tp)
{
size_t rndup = nelems % X_ALIGN;
schar *xp = (schar *) *xpp;
if(rndup)
rndup = X_ALIGN - rndup;
while(nelems-- != 0)
{
*tp++ = *xp++;
}
*xpp = (void *)(xp + rndup);
return ENOERR;
}
')dnl
dnl dnl dnl
dnl
dnl NCX_GETNo(XType, Type) deprecated
dnl
define(`NCX_GETNo',dnl
`dnl
int
ncx_getn_$1_$2(const void **xpp, size_t nelems, $2 *tp)
{
const char *xp = (const char *) *xpp;
int status = ENOERR;
$1 xx;
for( ; nelems != 0; nelems--, xp += Xsizeof($1), tp++)
{
const int lstatus = ncx_get_$1_$1(xp, &xx);
*tp = ($2)xx;
if(lstatus != ENOERR)
status = lstatus;
}
*xpp = (const void *)xp;
return status;
}
')dnl
dnl dnl dnl
dnl
dnl NCX_GETN(XType, Type)
dnl
define(`NCX_GETN',dnl
`dnl
int
ncx_getn_$1_$2(const void **xpp, size_t nelems, $2 *tp)
{
#if _SX && \
Xsizeof($1) == Isizeof($1)
/* basic algorithm is:
* - ensure sane alignment of input data
* - copy (conversion happens automatically) input data
* to output
* - update xpp to point at next unconverted input, and tp to point
* at next location for converted output
*/
long i, j, ni;
$1 tmp[LOOPCNT]; /* in case input is misaligned */
$1 *xp;
int nrange = 0; /* number of range errors */
int realign = 0; /* "do we need to fix input data alignment?" */
long cxp = (long) *((char**)xpp);
realign = (cxp & 7) % Isizeof($1);
/* sjl: manually stripmine so we can limit amount of
* vector work space reserved to LOOPCNT elements. Also
* makes vectorisation easy */
for (j=0; j<nelems && nrange==0; j+=LOOPCNT) {
ni=Min(nelems-j,LOOPCNT);
if (realign) {
memcpy(tmp, *xpp, ni*Isizeof($1));
xp = tmp;
} else {
xp = ($1 *) *xpp;
}
/* copy the next block */
#pragma cdir loopcnt=LOOPCNT
#pragma cdir shortloop
for (i=0; i<ni; i++) {
tp[i] = ($2) Max( Imin($2), Min(Imax($2), ($2) xp[i]));
/* test for range errors (not always needed but do it anyway) */
nrange += xp[i] < Imin($2) || xp[i] > Imax($2);
}
/* update xpp and tp */
if (realign) xp = ($1 *) *xpp;
xp += ni;
tp += ni;
*xpp = (void*)xp;
}
return nrange == 0 ? ENOERR : NC_ERANGE;
#else /* not SX */
const char *xp = (const char *) *xpp;
int status = ENOERR;
for( ; nelems != 0; nelems--, xp += Xsizeof($1), tp++)
{
const int lstatus = ncx_get_$1_$2(xp, tp);
if(lstatus != ENOERR)
status = lstatus;
}
*xpp = (const void *)xp;
return status;
# endif
}
')dnl
dnl dnl dnl
dnl
dnl NCX_PAD_GETN_SHORT( Type)
dnl
define(`NCX_PAD_GETN_SHORT',dnl
`dnl
int
ncx_pad_getn_short_$1(const void **xpp, size_t nelems, $1 *tp)
{
const size_t rndup = nelems % 2;
const char *xp = (const char *) *xpp;
int status = ENOERR;
for( ; nelems != 0; nelems--, xp += X_SIZEOF_SHORT, tp++)
{
const int lstatus = ncx_get_short_$1(xp, tp);
if(lstatus != ENOERR)
status = lstatus;
}
if(rndup != 0)
xp += X_SIZEOF_SHORT;
*xpp = (void *)xp;
return status;
}
')dnl
dnl dnl dnl
dnl
dnl NCX_PUTN_Byte_Body(Type) (body for one byte types)
dnl
define(`NCX_PUTN_Byte_Body',dnl
`dnl
(void) memcpy(*xpp, tp, nelems);
*xpp = (void *)((char *)(*xpp) + nelems);
return ENOERR;
')dnl
dnl dnl dnl
dnl
dnl NCX_PAD_PUTN_Byte_Body(Type) (body for one byte types)
dnl
define(`NCX_PAD_PUTN_Byte_Body',dnl
size_t rndup = nelems % X_ALIGN;
if(rndup)
rndup = X_ALIGN - rndup;
(void) memcpy(*xpp, tp, nelems);
*xpp = (void *)((char *)(*xpp) + nelems);
if(rndup)
{
(void) memcpy(*xpp, nada, rndup);
*xpp = (void *)((char *)(*xpp) + rndup);
}
return ENOERR;
`dnl
')dnl
dnl dnl dnl
dnl
dnl NCX_PUTN_SCHAR(Type)
dnl
define(`NCX_PUTN_SCHAR',dnl
`dnl
int
ncx_putn_schar_$1(void **xpp, size_t nelems, const $1 *tp)
{
int status = ENOERR;
schar *xp = (schar *) *xpp;
while(nelems-- != 0)
{
if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
status = NC_ERANGE;
*xp++ = (schar) *tp++;
}
*xpp = (void *)xp;
return status;
}
')dnl
dnl dnl dnl
dnl
dnl NCX_PAD_PUTN_SCHAR(Type)
dnl
define(`NCX_PAD_PUTN_SCHAR',dnl
`dnl
int
ncx_pad_putn_schar_$1(void **xpp, size_t nelems, const $1 *tp)
{
int status = ENOERR;
size_t rndup = nelems % X_ALIGN;
schar *xp = (schar *) *xpp;
if(rndup)
rndup = X_ALIGN - rndup;
while(nelems-- != 0)
{
/* N.B. schar as signed */
if(*tp > X_SCHAR_MAX || *tp < X_SCHAR_MIN)
status = NC_ERANGE;
*xp++ = (schar) *tp++;
}
if(rndup)
{
(void) memcpy(xp, nada, rndup);
xp += rndup;
}
*xpp = (void *)xp;
return status;
}
')dnl
dnl dnl dnl
dnl
dnl NCX_PUTNo(XType, Type) deprecated
dnl
define(`NCX_PUTNo',dnl
`dnl
int
ncx_putn_$1_$2(void **xpp, size_t nelems, const $2 *tp)
{
char *xp = (char *) *xpp;
int status = ENOERR;
$1 xx;
for( ; nelems != 0; nelems--, xp += Xsizeof($1), tp++)
{
xx = ($1) *tp;
{
int lstatus = ncx_put_$1_$1(xp, &xx);
if(lstatus != ENOERR)
status = lstatus;
}
}
*xpp = (void *)xp;
return status;
}
')dnl
dnl dnl dnl
dnl
dnl NCX_PUTN(XType, Type)
dnl
define(`NCX_PUTN',dnl
`dnl
int
ncx_putn_$1_$2(void **xpp, size_t nelems, const $2 *tp)
{
#if _SX && \
Xsizeof($1) == Isizeof($1)
/* basic algorithm is:
* - ensure sane alignment of output data
* - copy (conversion happens automatically) input data
* to output
* - update tp to point at next unconverted input, and xpp to point
* at next location for converted output
*/
long i, j, ni;
$1 tmp[LOOPCNT]; /* in case input is misaligned */
$1 *xp;
ifelse( $1$2, intfloat,dnl
`dnl
double d; /* special case for ncx_putn_int_float */
')dnl
int nrange = 0; /* number of range errors */
int realign = 0; /* "do we need to fix input data alignment?" */
long cxp = (long) *((char**)xpp);
realign = (cxp & 7) % Isizeof($1);
/* sjl: manually stripmine so we can limit amount of
* vector work space reserved to LOOPCNT elements. Also
* makes vectorisation easy */
for (j=0; j<nelems && nrange==0; j+=LOOPCNT) {
ni=Min(nelems-j,LOOPCNT);
if (realign) {
xp = tmp;
} else {
xp = ($1 *) *xpp;
}
/* copy the next block */
#pragma cdir loopcnt=LOOPCNT
#pragma cdir shortloop
for (i=0; i<ni; i++) {
ifelse( $1$2, intfloat,dnl
`dnl
/* for some reason int to float, for putn, requires a special case */
d = tp[i];
xp[i] = ($1) Max( Xmin($1), Min(Xmax($1), ($1) d));
nrange += d < Xmin($1) || d > Xmax($1);
',dnl
`dnl
/* the normal case: */
xp[i] = ($1) Max( Xmin($1), Min(Xmax($1), ($1) tp[i]));
/* test for range errors (not always needed but do it anyway) */
nrange += tp[i] < Xmin($1) || tp[i] > Xmax($1);
')dnl
}
/* copy workspace back if necessary */
if (realign) {
memcpy(*xpp, tmp, ni*Xsizeof($1));
xp = ($1 *) *xpp;
}
/* update xpp and tp */
xp += ni;
tp += ni;
*xpp = (void*)xp;
}
return nrange == 0 ? ENOERR : NC_ERANGE;
#else /* not SX */
char *xp = (char *) *xpp;
int status = ENOERR;
for( ; nelems != 0; nelems--, xp += Xsizeof($1), tp++)
{
int lstatus = ncx_put_$1_$2(xp, tp);
if(lstatus != ENOERR)
status = lstatus;
}
*xpp = (void *)xp;
return status;
#endif
}
')dnl
dnl dnl dnl
dnl
dnl NCX_PAD_PUTN_SHORT(Type)
dnl
define(`NCX_PAD_PUTN_SHORT',dnl
`dnl
int
ncx_pad_putn_short_$1(void **xpp, size_t nelems, const $1 *tp)
{
const size_t rndup = nelems % 2;
char *xp = (char *) *xpp;
int status = ENOERR;
for( ; nelems != 0; nelems--, xp += Xsizeof(short), tp++)
{
int lstatus = ncx_put_short_$1(xp, tp);
if(lstatus != ENOERR)
status = lstatus;
}
if(rndup != 0)
{
(void) memcpy(xp, nada, X_SIZEOF_SHORT);
xp += X_SIZEOF_SHORT;
}
*xpp = (void *)xp;
return status;
}
')dnl
dnl dnl dnl
dnl
dnl Declare & define routines
dnl
dnl dnl dnl
/* schar */
dnl NCX_GETN_SCHAR(schar)
int
ncx_getn_schar_schar(const void **xpp, size_t nelems, schar *tp)
{
NCX_GETN_Byte_Body
}
dnl NCX_GETN_SCHAR(uchar)
int
ncx_getn_schar_uchar(const void **xpp, size_t nelems, uchar *tp)
{
NCX_GETN_Byte_Body
}
NCX_GETN_SCHAR(short)
NCX_GETN_SCHAR(int)
NCX_GETN_SCHAR(long)
NCX_GETN_SCHAR(float)
NCX_GETN_SCHAR(double)
dnl NCX_PAD_GETN_SCHAR(schar)
int
ncx_pad_getn_schar_schar(const void **xpp, size_t nelems, schar *tp)
{
NCX_PAD_GETN_Byte_Body
}
dnl NCX_PAD_GETN_SCHAR(uchar)
int
ncx_pad_getn_schar_uchar(const void **xpp, size_t nelems, uchar *tp)
{
NCX_PAD_GETN_Byte_Body
}
NCX_PAD_GETN_SCHAR(short)
NCX_PAD_GETN_SCHAR(int)
NCX_PAD_GETN_SCHAR(long)
NCX_PAD_GETN_SCHAR(float)
NCX_PAD_GETN_SCHAR(double)
dnl NCX_PUTN_SCHAR(schar)
int
ncx_putn_schar_schar(void **xpp, size_t nelems, const schar *tp)
{
NCX_PUTN_Byte_Body
}
dnl NCX_PUTN_SCHAR(uchar)
int
ncx_putn_schar_uchar(void **xpp, size_t nelems, const uchar *tp)
{
NCX_PUTN_Byte_Body
}
NCX_PUTN_SCHAR(short)
NCX_PUTN_SCHAR(int)
NCX_PUTN_SCHAR(long)
NCX_PUTN_SCHAR(float)
NCX_PUTN_SCHAR(double)
dnl NCX_PAD_PUTN_SCHAR(schar)
int
ncx_pad_putn_schar_schar(void **xpp, size_t nelems, const schar *tp)
{
NCX_PAD_PUTN_Byte_Body
}
dnl NCX_PAD_PUTN_SCHAR(uchar)
int
ncx_pad_putn_schar_uchar(void **xpp, size_t nelems, const uchar *tp)
{
NCX_PAD_PUTN_Byte_Body
}
NCX_PAD_PUTN_SCHAR(short)
NCX_PAD_PUTN_SCHAR(int)
NCX_PAD_PUTN_SCHAR(long)
NCX_PAD_PUTN_SCHAR(float)
NCX_PAD_PUTN_SCHAR(double)
/* short */
NCX_GETN(short, schar)
NCX_GETN(short, uchar)
#if X_SIZEOF_SHORT == SIZEOF_SHORT
/* optimized version */
int
ncx_getn_short_short(const void **xpp, size_t nelems, short *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(tp, *xpp, nelems * sizeof(short));
# else
swapn2b(tp, *xpp, nelems);
# endif
*xpp = (const void *)((const char *)(*xpp) + nelems * X_SIZEOF_SHORT);
return ENOERR;
}
#else
NCX_GETN(short, short)
#endif
NCX_GETN(short, int)
NCX_GETN(short, long)
NCX_GETN(short, float)
NCX_GETN(short, double)
NCX_PAD_GETN_SHORT(schar)
NCX_PAD_GETN_SHORT(uchar)
NCX_PAD_GETN_SHORT(short)
NCX_PAD_GETN_SHORT(int)
NCX_PAD_GETN_SHORT(long)
NCX_PAD_GETN_SHORT(float)
NCX_PAD_GETN_SHORT(double)
NCX_PUTN(short, schar)
NCX_PUTN(short, uchar)
#if X_SIZEOF_SHORT == SIZEOF_SHORT
/* optimized version */
int
ncx_putn_short_short(void **xpp, size_t nelems, const short *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(*xpp, tp, nelems * X_SIZEOF_SHORT);
# else
swapn2b(*xpp, tp, nelems);
# endif
*xpp = (void *)((char *)(*xpp) + nelems * X_SIZEOF_SHORT);
return ENOERR;
}
#else
NCX_PUTN(short, short)
#endif
NCX_PUTN(short, int)
NCX_PUTN(short, long)
NCX_PUTN(short, float)
NCX_PUTN(short, double)
NCX_PAD_PUTN_SHORT(schar)
NCX_PAD_PUTN_SHORT(uchar)
NCX_PAD_PUTN_SHORT(short)
NCX_PAD_PUTN_SHORT(int)
NCX_PAD_PUTN_SHORT(long)
NCX_PAD_PUTN_SHORT(float)
NCX_PAD_PUTN_SHORT(double)
/* int */
NCX_GETN(int, schar)
NCX_GETN(int, uchar)
NCX_GETN(int, short)
#if X_SIZEOF_INT == SIZEOF_INT
/* optimized version */
int
ncx_getn_int_int(const void **xpp, size_t nelems, int *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(tp, *xpp, nelems * sizeof(int));
# else
swapn4b(tp, *xpp, nelems);
# endif
*xpp = (const void *)((const char *)(*xpp) + nelems * X_SIZEOF_INT);
return ENOERR;
}
#else
NCX_GETN(int, int)
#endif
#if X_SIZEOF_INT == SIZEOF_LONG
/* optimized version */
int
ncx_getn_int_long(const void **xpp, size_t nelems, long *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(tp, *xpp, nelems * sizeof(long));
# else
swapn4b(tp, *xpp, nelems);
# endif
*xpp = (const void *)((const char *)(*xpp) + nelems * X_SIZEOF_INT);
return ENOERR;
}
#else
NCX_GETN(int, long)
#endif
NCX_GETN(int, float)
NCX_GETN(int, double)
NCX_PUTN(int, schar)
NCX_PUTN(int, uchar)
NCX_PUTN(int, short)
#if X_SIZEOF_INT == SIZEOF_INT
/* optimized version */
int
ncx_putn_int_int(void **xpp, size_t nelems, const int *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(*xpp, tp, nelems * X_SIZEOF_INT);
# else
swapn4b(*xpp, tp, nelems);
# endif
*xpp = (void *)((char *)(*xpp) + nelems * X_SIZEOF_INT);
return ENOERR;
}
#else
NCX_PUTN(int, int)
#endif
#if X_SIZEOF_INT == SIZEOF_LONG
/* optimized version */
int
ncx_putn_int_long(void **xpp, size_t nelems, const long *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(*xpp, tp, nelems * X_SIZEOF_INT);
# else
swapn4b(*xpp, tp, nelems);
# endif
*xpp = (void *)((char *)(*xpp) + nelems * X_SIZEOF_INT);
return ENOERR;
}
#else
NCX_PUTN(int, long)
#endif
NCX_PUTN(int, float)
NCX_PUTN(int, double)
/* float */
NCX_GETN(float, schar)
NCX_GETN(float, uchar)
NCX_GETN(float, short)
NCX_GETN(float, int)
NCX_GETN(float, long)
#if X_SIZEOF_FLOAT == SIZEOF_FLOAT && !defined(NO_IEEE_FLOAT)
/* optimized version */
int
ncx_getn_float_float(const void **xpp, size_t nelems, float *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(tp, *xpp, nelems * sizeof(float));
# else
swapn4b(tp, *xpp, nelems);
# endif
*xpp = (const void *)((const char *)(*xpp) + nelems * X_SIZEOF_FLOAT);
return ENOERR;
}
#elif vax
int
ncx_getn_float_float(const void **xpp, size_t nfloats, float *ip)
{
float *const end = ip + nfloats;
while(ip < end)
{
GET_VAX_DFLOAT_Body(`(*xpp)')
ip++;
*xpp = (char *)(*xpp) + X_SIZEOF_FLOAT;
}
return ENOERR;
}
#else
int
ncx_getn_float_float(const void **xpp, size_t nelems, float *tp)
{
const char *xp = *xpp;
int status = ENOERR;
for( ; nelems != 0; nelems--, xp += X_SIZEOF_FLOAT, tp++)
{
const int lstatus = ncx_get_float_float(xp, tp);
if(lstatus != ENOERR)
status = lstatus;
}
*xpp = (const void *)xp;
return status;
}
#endif
NCX_GETN(float, double)
NCX_PUTN(float, schar)
NCX_PUTN(float, uchar)
NCX_PUTN(float, short)
NCX_PUTN(float, int)
NCX_PUTN(float, long)
#if X_SIZEOF_FLOAT == SIZEOF_FLOAT && !defined(NO_IEEE_FLOAT)
/* optimized version */
int
ncx_putn_float_float(void **xpp, size_t nelems, const float *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(*xpp, tp, nelems * X_SIZEOF_FLOAT);
# else
swapn4b(*xpp, tp, nelems);
# endif
*xpp = (void *)((char *)(*xpp) + nelems * X_SIZEOF_FLOAT);
return ENOERR;
}
#elif vax
int
ncx_putn_float_float(void **xpp, size_t nfloats, const float *ip)
{
const float *const end = ip + nfloats;
while(ip < end)
{
PUT_VAX_DFLOAT_Body(`(*xpp)')
ip++;
*xpp = (char *)(*xpp) + X_SIZEOF_FLOAT;
}
return ENOERR;
}
#else
int
ncx_putn_float_float(void **xpp, size_t nelems, const float *tp)
{
char *xp = *xpp;
int status = ENOERR;
for( ; nelems != 0; nelems--, xp += X_SIZEOF_FLOAT, tp++)
{
int lstatus = ncx_put_float_float(xp, tp);
if(lstatus != ENOERR)
status = lstatus;
}
*xpp = (void *)xp;
return status;
}
#endif
NCX_PUTN(float, double)
/* double */
NCX_GETN(double, schar)
NCX_GETN(double, uchar)
NCX_GETN(double, short)
NCX_GETN(double, int)
NCX_GETN(double, long)
NCX_GETN(double, float)
dnl NCX_GETN(double, double)
#if X_SIZEOF_DOUBLE == SIZEOF_DOUBLE && !defined(NO_IEEE_FLOAT)
/* optimized version */
int
ncx_getn_double_double(const void **xpp, size_t nelems, double *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(tp, *xpp, nelems * sizeof(double));
# else
swapn8b(tp, *xpp, nelems);
# endif
*xpp = (const void *)((const char *)(*xpp) + nelems * X_SIZEOF_DOUBLE);
return ENOERR;
}
#elif vax
int
ncx_getn_double_double(const void **xpp, size_t ndoubles, double *ip)
{
double *const end = ip + ndoubles;
while(ip < end)
{
GET_VAX_DDOUBLE_Body(`(*xpp)')
ip++;
*xpp = (char *)(*xpp) + X_SIZEOF_DOUBLE;
}
return ENOERR;
}
/* vax */
#else
int
ncx_getn_double_double(const void **xpp, size_t nelems, double *tp)
{
const char *xp = *xpp;
int status = ENOERR;
for( ; nelems != 0; nelems--, xp += X_SIZEOF_DOUBLE, tp++)
{
const int lstatus = ncx_get_double_double(xp, tp);
if(lstatus != ENOERR)
status = lstatus;
}
*xpp = (const void *)xp;
return status;
}
#endif
NCX_PUTN(double, schar)
NCX_PUTN(double, uchar)
NCX_PUTN(double, short)
NCX_PUTN(double, int)
NCX_PUTN(double, long)
NCX_PUTN(double, float)
dnl NCX_PUTN(double, double)
#if X_SIZEOF_DOUBLE == SIZEOF_DOUBLE && !defined(NO_IEEE_FLOAT)
/* optimized version */
int
ncx_putn_double_double(void **xpp, size_t nelems, const double *tp)
{
#ifdef WORDS_BIGENDIAN
(void) memcpy(*xpp, tp, nelems * X_SIZEOF_DOUBLE);
# else
swapn8b(*xpp, tp, nelems);
# endif
*xpp = (void *)((char *)(*xpp) + nelems * X_SIZEOF_DOUBLE);
return ENOERR;
}
#elif vax
int
ncx_putn_double_double(void **xpp, size_t ndoubles, const double *ip)
{
const double *const end = ip + ndoubles;
while(ip < end)
{
PUT_VAX_DDOUBLE_Body(`(*xpp)')
ip++;
*xpp = (char *)(*xpp) + X_SIZEOF_DOUBLE;
}
return ENOERR;
}
/* vax */
#else
int
ncx_putn_double_double(void **xpp, size_t nelems, const double *tp)
{
char *xp = *xpp;
int status = ENOERR;
for( ; nelems != 0; nelems--, xp += X_SIZEOF_DOUBLE, tp++)
{
int lstatus = ncx_put_double_double(xp, tp);
if(lstatus != ENOERR)
status = lstatus;
}
*xpp = (void *)xp;
return status;
}
#endif
/*
* Other aggregate conversion functions.
*/
/* text */
int
ncx_getn_text(const void **xpp, size_t nelems, char *tp)
{
NCX_GETN_Byte_Body
}
int
ncx_pad_getn_text(const void **xpp, size_t nelems, char *tp)
{
NCX_PAD_GETN_Byte_Body
}
int
ncx_putn_text(void **xpp, size_t nelems, const char *tp)
{
NCX_PUTN_Byte_Body
}
int
ncx_pad_putn_text(void **xpp, size_t nelems, const char *tp)
{
NCX_PAD_PUTN_Byte_Body
}
/* opaque */
int
ncx_getn_void(const void **xpp, size_t nelems, void *tp)
{
NCX_GETN_Byte_Body
}
int
ncx_pad_getn_void(const void **xpp, size_t nelems, void *tp)
{
NCX_PAD_GETN_Byte_Body
}
int
ncx_putn_void(void **xpp, size_t nelems, const void *tp)
{
NCX_PUTN_Byte_Body
}
int
ncx_pad_putn_void(void **xpp, size_t nelems, const void *tp)
{
NCX_PAD_PUTN_Byte_Body
}
Reference in New Issue View Git Blame Copy Permalink