/* * Copyright 1996, University Corporation for Atmospheric Research * See netcdf/COPYRIGHT file for copying and redistribution conditions. */ /* "$Id: ncx.h,v 1.65 2010/05/26 18:11:08 dmh Exp $" */ #ifndef _NCX_H_ #define _NCX_H_ #include "ncdispatch.h" #include "ncio.h" #include "fbits.h" /* * An external data representation interface. * * This started out as a general replacement for ONC XDR, * specifically, the xdrmem family of functions. * * We eventually realized that we could write more portable * code if we decoupled any association between the 'C' types * and the external types. (XDR has this association between the 'C' * types and the external representations, like xdr_int() takes * an int argument and goes to an external int representation.) * So, now there is a matrix of functions. * */ #include /* output of 'configure' */ #include "rnd.h" #include /* size_t */ #include #include /* off_t */ #include #define longlong long long #if defined(_CRAY) && !defined(_CRAYIEEE) && !defined(__crayx1) #define CRAYFLOAT 1 /* CRAY Floating point */ #elif defined(_SX) && defined(_FLOAT2) /* NEC SUPER-UX in CRAY mode */ #define CRAYFLOAT 1 /* CRAY Floating point */ #endif /* * The integer return code for the conversion routines * is 0 (ENOERR) when no error occurred, or NC_ERANGE as appropriate * for an overflow conversion. */ #ifndef ENOERR #define ENOERR 0 #endif #ifndef NC_ERANGE #define NC_ERANGE (-60) /* N.B. must match value in netcdf.h */ #endif #ifndef NC_ENOMEM #define NC_ENOMEM (-61) /* N.B. must match value in netcdf.h */ #endif /* * External sizes of the primitive elements. */ #define X_SIZEOF_CHAR 1 #define X_SIZEOF_SHORT 2 #define X_SIZEOF_INT 4 /* xdr_int */ #if 0 #define X_SIZEOF_LONG 8 */ /* xdr_long_long */ #endif #define X_SIZEOF_FLOAT 4 #define X_SIZEOF_DOUBLE 8 /* * For now, netcdf is limited to 32 bit sizes, * If compiled with support for "large files", then * netcdf will use a 64 bit off_t and it can then write a file * using 64 bit offsets. * see also X_SIZE_MAX, X_OFF_MAX below */ #define X_SIZEOF_OFF_T (sizeof(off_t)) #define X_SIZEOF_SIZE_T X_SIZEOF_INT /* * limits of the external representation */ #define X_SCHAR_MIN (-128) #define X_SCHAR_MAX 127 #define X_UCHAR_MAX 255U #define X_SHORT_MIN (-32768) #define X_SHRT_MIN X_SHORT_MIN /* alias compatible with limits.h */ #define X_SHORT_MAX 32767 #define X_SHRT_MAX X_SHORT_MAX /* alias compatible with limits.h */ #define X_USHORT_MAX 65535U #define X_USHRT_MAX X_USHORT_MAX /* alias compatible with limits.h */ #define X_INT_MIN (-2147483647-1) #define X_INT_MAX 2147483647 #define X_UINT_MAX 4294967295U #define X_LONGLONG_MIN (-9223372036854775807LL-1LL) #define X_LONGLONG_MAX 9223372036854775807LL #define X_ULONGLONG_MAX 18446744073709551615ULL #define X_FLOAT_MAX 3.402823466e+38f #define X_FLOAT_MIN (-X_FLOAT_MAX) #define X_FLT_MAX X_FLOAT_MAX /* alias compatible with limits.h */ #if CRAYFLOAT /* ldexp(1. - ldexp(.5 , -46), 1024) */ #define X_DOUBLE_MAX 1.79769313486230e+308 #else /* scalb(1. - scalb(.5 , -52), 1024) */ #define X_DOUBLE_MAX 1.7976931348623157e+308 #endif #define X_DOUBLE_MIN (-X_DOUBLE_MAX) #define X_DBL_MAX X_DOUBLE_MAX /* alias compatible with limits.h */ #define X_SIZE_MAX X_UINT_MAX #define X_OFF_MAX X_INT_MAX /* Begin ncx_len */ /* * ncx_len_xxx() interfaces are defined as macros below, * These give the length of an array of nelems of the type. * N.B. The 'char' and 'short' interfaces give the X_ALIGNED length. */ #define X_ALIGN 4 /* a.k.a. BYTES_PER_XDR_UNIT */ #define ncx_len_char(nelems) \ _RNDUP((nelems), X_ALIGN) #define ncx_len_short(nelems) \ (((nelems) + (nelems)%2) * X_SIZEOF_SHORT) #define ncx_len_int(nelems) \ ((nelems) * X_SIZEOF_INT) #define ncx_len_long(nelems) \ ((nelems) * X_SIZEOF_LONG) #define ncx_len_float(nelems) \ ((nelems) * X_SIZEOF_FLOAT) #define ncx_len_double(nelems) \ ((nelems) * X_SIZEOF_DOUBLE) /* End ncx_len */ #if __CHAR_UNSIGNED__ /* 'char' is unsigned, declare ncbyte as 'signed char' */ typedef signed char schar; #else /* 'char' is signed */ typedef signed char schar; #endif /* __CHAR_UNSIGNED__ */ /* * Primitive numeric conversion functions. * The `put' functions convert from native internal * type to the external type, while the `get' functions * convert from the external to the internal. * * These take the form * int ncx_get_{external_type}_{internal_type}( * const void *xp, * internal_type *ip * ); * int ncx_put_{external_type}_{internal_type}( * void *xp, * const internal_type *ip * ); * where * `external_type' and `internal_type' chosen from schar uchar short ushort int uint long ulong float double * * Not all combinations make sense. * We may not implement all combinations that make sense. * The netcdf functions that use this ncx interface don't * use these primitive conversion functions. They use the * aggregate conversion functions declared below. * * Storage for a single element of external type is at the `void * xp' * argument. * * Storage for a single element of internal type is at `ip' argument. * * These functions return 0 (ENOERR) when no error occurred, * or NC_ERANGE when the value being converted is too large. * When NC_ERANGE occurs, an undefined (implementation dependent) * conversion may have occurred. * * Note that loss of precision may occur silently. * */ #if 0 extern int ncx_get_schar_schar(const void *xp, schar *ip); extern int ncx_get_schar_uchar(const void *xp, uchar *ip); extern int ncx_get_schar_short(const void *xp, short *ip); extern int ncx_get_schar_int(const void *xp, int *ip); extern int ncx_get_schar_long(const void *xp, long *ip); extern int ncx_get_schar_float(const void *xp, float *ip); extern int ncx_get_schar_double(const void *xp, double *ip); extern int ncx_put_schar_schar(void *xp, const schar *ip); extern int ncx_put_schar_uchar(void *xp, const uchar *ip); extern int ncx_put_schar_short(void *xp, const short *ip); extern int ncx_put_schar_int(void *xp, const int *ip); extern int ncx_put_schar_long(void *xp, const long *ip); extern int ncx_put_schar_float(void *xp, const float *ip); extern int ncx_put_schar_double(void *xp, const double *ip); #endif extern int ncx_get_short_schar(const void *xp, schar *ip); extern int ncx_get_short_uchar(const void *xp, uchar *ip); extern int ncx_get_short_short(const void *xp, short *ip); extern int ncx_get_short_int(const void *xp, int *ip); extern int ncx_get_short_long(const void *xp, long *ip); extern int ncx_get_short_float(const void *xp, float *ip); extern int ncx_get_short_double(const void *xp, double *ip); extern int ncx_put_short_schar(void *xp, const schar *ip); extern int ncx_put_short_uchar(void *xp, const uchar *ip); extern int ncx_put_short_short(void *xp, const short *ip); extern int ncx_put_short_int(void *xp, const int *ip); extern int ncx_put_short_long(void *xp, const long *ip); extern int ncx_put_short_float(void *xp, const float *ip); extern int ncx_put_short_double(void *xp, const double *ip); extern int ncx_get_int_schar(const void *xp, schar *ip); extern int ncx_get_int_uchar(const void *xp, uchar *ip); extern int ncx_get_int_short(const void *xp, short *ip); extern int ncx_get_int_int(const void *xp, int *ip); extern int ncx_get_int_long(const void *xp, long *ip); extern int ncx_get_int_float(const void *xp, float *ip); extern int ncx_get_int_double(const void *xp, double *ip); extern int ncx_put_int_schar(void *xp, const schar *ip); extern int ncx_put_int_uchar(void *xp, const uchar *ip); extern int ncx_put_int_short(void *xp, const short *ip); extern int ncx_put_int_int(void *xp, const int *ip); extern int ncx_put_int_long(void *xp, const long *ip); extern int ncx_put_int_float(void *xp, const float *ip); extern int ncx_put_int_double(void *xp, const double *ip); extern int ncx_get_float_schar(const void *xp, schar *ip); extern int ncx_get_float_uchar(const void *xp, uchar *ip); extern int ncx_get_float_short(const void *xp, short *ip); extern int ncx_get_float_int(const void *xp, int *ip); extern int ncx_get_float_long(const void *xp, long *ip); extern int ncx_get_float_float(const void *xp, float *ip); extern int ncx_get_float_double(const void *xp, double *ip); extern int ncx_put_float_schar(void *xp, const schar *ip); extern int ncx_put_float_uchar(void *xp, const uchar *ip); extern int ncx_put_float_short(void *xp, const short *ip); extern int ncx_put_float_int(void *xp, const int *ip); extern int ncx_put_float_long(void *xp, const long *ip); extern int ncx_put_float_float(void *xp, const float *ip); extern int ncx_put_float_double(void *xp, const double *ip); extern int ncx_get_double_schar(const void *xp, schar *ip); extern int ncx_get_double_uchar(const void *xp, uchar *ip); extern int ncx_get_double_short(const void *xp, short *ip); extern int ncx_get_double_int(const void *xp, int *ip); extern int ncx_get_double_long(const void *xp, long *ip); extern int ncx_get_double_float(const void *xp, float *ip); extern int ncx_get_double_double(const void *xp, double *ip); extern int ncx_put_double_schar(void *xp, const schar *ip); extern int ncx_put_double_uchar(void *xp, const uchar *ip); extern int ncx_put_double_short(void *xp, const short *ip); extern int ncx_put_double_int(void *xp, const int *ip); extern int ncx_put_double_long(void *xp, const long *ip); extern int ncx_put_double_float(void *xp, const float *ip); extern int ncx_put_double_double(void *xp, const double *ip); /* * Other primitive conversion functions * N.B. slightly different interface * Used by netcdf. */ /* ncx_get_int_size_t */ extern int ncx_get_size_t(const void **xpp, size_t *ulp); /* ncx_get_int_off_t */ extern int ncx_get_off_t(const void **xpp, off_t *lp, size_t sizeof_off_t); /* ncx_put_int_size_t */ extern int ncx_put_size_t(void **xpp, const size_t *ulp); /* ncx_put_int_off_t */ extern int ncx_put_off_t(void **xpp, const off_t *lp, size_t sizeof_off_t); /* * Aggregate numeric conversion functions. * Convert an array. Replaces xdr_array(...). * These functions are used by netcdf. Unlike the xdr * interface, we optimize for aggregate conversions. * This functions should be implemented to take advantage * of multiple processor / parallel hardware where available. * * These take the form * int ncx_getn_{external_type}_{internal_type}( * const void *xpp, * size_t nelems, * internal_type *ip * ); * int ncx_putn_{external_type}_{internal_type}( * void **xpp, * size_t nelems, * const internal_type *ip * ); * Where the types are as in the primitive numeric conversion functions. * * The value of the pointer to pointer argument, *xpp, is * expected to reference storage for `nelems' of the external * type. On return, it modified to reference just past the last * converted external element. * * The types whose external size is less than X_ALIGN also have `pad' * interfaces. These round (and zero fill on put) *xpp up to X_ALIGN * boundaries. (This is the usual xdr behavior.) * * The `ip' argument should point to an array of `nelems' of * internal_type. * * Range errors (NC_ERANGE) for a individual values in the array * DO NOT terminate the array conversion. All elements are converted, * with some having undefined values. * If any range error occurs, the function returns NC_ERANGE. * */ extern int ncx_getn_schar_schar(const void **xpp, size_t nelems, schar *ip); extern int ncx_getn_schar_uchar(const void **xpp, size_t nelems, uchar *ip); extern int ncx_getn_schar_short(const void **xpp, size_t nelems, short *ip); extern int ncx_getn_schar_int(const void **xpp, size_t nelems, int *ip); extern int ncx_getn_schar_long(const void **xpp, size_t nelems, long *ip); extern int ncx_getn_schar_float(const void **xpp, size_t nelems, float *ip); extern int ncx_getn_schar_double(const void **xpp, size_t nelems, double *ip); extern int ncx_getn_schar_uint(const void **xpp, size_t nelems, unsigned int *ip); extern int ncx_getn_schar_longlong(const void **xpp, size_t nelems, longlong *ip); extern int ncx_getn_schar_ulonglong(const void **xpp, size_t nelems, ulonglong *ip); extern int ncx_pad_getn_schar_schar(const void **xpp, size_t nelems, schar *ip); extern int ncx_pad_getn_schar_uchar(const void **xpp, size_t nelems, uchar *ip); extern int ncx_pad_getn_schar_short(const void **xpp, size_t nelems, short *ip); extern int ncx_pad_getn_schar_int(const void **xpp, size_t nelems, int *ip); extern int ncx_pad_getn_schar_long(const void **xpp, size_t nelems, long *ip); extern int ncx_pad_getn_schar_float(const void **xpp, size_t nelems, float *ip); extern int ncx_pad_getn_schar_double(const void **xpp, size_t nelems, double *ip); extern int ncx_pad_getn_schar_uint(const void **xpp, size_t nelems, unsigned int *ip); extern int ncx_pad_getn_schar_longlong(const void **xpp, size_t nelems, longlong *ip); extern int ncx_pad_getn_schar_ulonglong(const void **xpp, size_t nelems, ulonglong *ip); extern int ncx_putn_schar_schar(void **xpp, size_t nelems, const schar *ip); extern int ncx_putn_schar_uchar(void **xpp, size_t nelems, const uchar *ip); extern int ncx_putn_schar_short(void **xpp, size_t nelems, const short *ip); extern int ncx_putn_schar_int(void **xpp, size_t nelems, const int *ip); extern int ncx_putn_schar_long(void **xpp, size_t nelems, const long *ip); extern int ncx_putn_schar_float(void **xpp, size_t nelems, const float *ip); extern int ncx_putn_schar_double(void **xpp, size_t nelems, const double *ip); extern int ncx_putn_schar_uint(void **xpp, size_t nelems, const unsigned int *ip); extern int ncx_putn_schar_longlong(void **xpp, size_t nelems, const longlong *ip); extern int ncx_putn_schar_ulonglong(void **xpp, size_t nelems, const ulonglong *ip); extern int ncx_pad_putn_schar_schar(void **xpp, size_t nelems, const schar *ip); extern int ncx_pad_putn_schar_uchar(void **xpp, size_t nelems, const uchar *ip); extern int ncx_pad_putn_schar_short(void **xpp, size_t nelems, const short *ip); extern int ncx_pad_putn_schar_int(void **xpp, size_t nelems, const int *ip); extern int ncx_pad_putn_schar_long(void **xpp, size_t nelems, const long *ip); extern int ncx_pad_putn_schar_float(void **xpp, size_t nelems, const float *ip); extern int ncx_pad_putn_schar_double(void **xpp, size_t nelems, const double *ip); extern int ncx_pad_putn_schar_uint(void **xpp, size_t nelems, const unsigned int *ip); extern int ncx_pad_putn_schar_longlong(void **xpp, size_t nelems, const longlong *ip); extern int ncx_pad_putn_schar_ulonglong(void **xpp, size_t nelems, const ulonglong *ip); extern int ncx_getn_short_schar(const void **xpp, size_t nelems, schar *ip); extern int ncx_getn_short_uchar(const void **xpp, size_t nelems, uchar *ip); extern int ncx_getn_short_short(const void **xpp, size_t nelems, short *ip); extern int ncx_getn_short_int(const void **xpp, size_t nelems, int *ip); extern int ncx_getn_short_long(const void **xpp, size_t nelems, long *ip); extern int ncx_getn_short_float(const void **xpp, size_t nelems, float *ip); extern int ncx_getn_short_double(const void **xpp, size_t nelems, double *ip); extern int ncx_getn_short_uint(const void **xpp, size_t nelems, unsigned int *ip); extern int ncx_getn_short_longlong(const void **xpp, size_t nelems, longlong *ip); extern int ncx_getn_short_ulonglong(const void **xpp, size_t nelems, ulonglong *ip); extern int ncx_pad_getn_short_schar(const void **xpp, size_t nelems, schar *ip); extern int ncx_pad_getn_short_uchar(const void **xpp, size_t nelems, uchar *ip); extern int ncx_pad_getn_short_short(const void **xpp, size_t nelems, short *ip); extern int ncx_pad_getn_short_int(const void **xpp, size_t nelems, int *ip); extern int ncx_pad_getn_short_long(const void **xpp, size_t nelems, long *ip); extern int ncx_pad_getn_short_float(const void **xpp, size_t nelems, float *ip); extern int ncx_pad_getn_short_double(const void **xpp, size_t nelems, double *ip); extern int ncx_pad_getn_short_uint(const void **xpp, size_t nelems, unsigned int *ip); extern int ncx_pad_getn_short_longlong(const void **xpp, size_t nelems, longlong *ip); extern int ncx_pad_getn_short_ulonglong(const void **xpp, size_t nelems, ulonglong *ip); extern int ncx_putn_short_schar(void **xpp, size_t nelems, const schar *ip); extern int ncx_putn_short_uchar(void **xpp, size_t nelems, const uchar *ip); extern int ncx_putn_short_short(void **xpp, size_t nelems, const short *ip); extern int ncx_putn_short_int(void **xpp, size_t nelems, const int *ip); extern int ncx_putn_short_long(void **xpp, size_t nelems, const long *ip); extern int ncx_putn_short_float(void **xpp, size_t nelems, const float *ip); extern int ncx_putn_short_double(void **xpp, size_t nelems, const double *ip); extern int ncx_putn_short_uint(void **xpp, size_t nelems, const unsigned int *ip); extern int ncx_putn_short_longlong(void **xpp, size_t nelems, const longlong *ip); extern int ncx_putn_short_ulonglong(void **xpp, size_t nelems, const ulonglong *ip); extern int ncx_pad_putn_short_schar(void **xpp, size_t nelems, const schar *ip); extern int ncx_pad_putn_short_uchar(void **xpp, size_t nelems, const uchar *ip); extern int ncx_pad_putn_short_short(void **xpp, size_t nelems, const short *ip); extern int ncx_pad_putn_short_int(void **xpp, size_t nelems, const int *ip); extern int ncx_pad_putn_short_long(void **xpp, size_t nelems, const long *ip); extern int ncx_pad_putn_short_float(void **xpp, size_t nelems, const float *ip); extern int ncx_pad_putn_short_double(void **xpp, size_t nelems, const double *ip); extern int ncx_pad_putn_short_uint(void **xpp, size_t nelems, const unsigned int *ip); extern int ncx_pad_putn_short_longlong(void **xpp, size_t nelems, const longlong *ip); extern int ncx_pad_putn_short_ulonglong(void **xpp, size_t nelems, const ulonglong *ip); extern int ncx_getn_int_schar(const void **xpp, size_t nelems, schar *ip); extern int ncx_getn_int_uchar(const void **xpp, size_t nelems, uchar *ip); extern int ncx_getn_int_short(const void **xpp, size_t nelems, short *ip); extern int ncx_getn_int_int(const void **xpp, size_t nelems, int *ip); extern int ncx_getn_int_long(const void **xpp, size_t nelems, long *ip); extern int ncx_getn_int_float(const void **xpp, size_t nelems, float *ip); extern int ncx_getn_int_double(const void **xpp, size_t nelems, double *ip); extern int ncx_getn_int_uint(const void **xpp, size_t nelems, unsigned int *ip); extern int ncx_getn_int_longlong(const void **xpp, size_t nelems, longlong *ip); extern int ncx_getn_int_ulonglong(const void **xpp, size_t nelems, ulonglong *ip); extern int ncx_putn_int_schar(void **xpp, size_t nelems, const schar *ip); extern int ncx_putn_int_uchar(void **xpp, size_t nelems, const uchar *ip); extern int ncx_putn_int_short(void **xpp, size_t nelems, const short *ip); extern int ncx_putn_int_int(void **xpp, size_t nelems, const int *ip); extern int ncx_putn_int_long(void **xpp, size_t nelems, const long *ip); extern int ncx_putn_int_float(void **xpp, size_t nelems, const float *ip); extern int ncx_putn_int_double(void **xpp, size_t nelems, const double *ip); extern int ncx_putn_int_uint(void **xpp, size_t nelems, const unsigned int *ip); extern int ncx_putn_int_longlong(void **xpp, size_t nelems, const longlong *ip); extern int ncx_putn_int_ulonglong(void **xpp, size_t nelems, const ulonglong *ip); extern int ncx_getn_float_schar(const void **xpp, size_t nelems, schar *ip); extern int ncx_getn_float_uchar(const void **xpp, size_t nelems, uchar *ip); extern int ncx_getn_float_short(const void **xpp, size_t nelems, short *ip); extern int ncx_getn_float_int(const void **xpp, size_t nelems, int *ip); extern int ncx_getn_float_long(const void **xpp, size_t nelems, long *ip); extern int ncx_getn_float_float(const void **xpp, size_t nelems, float *ip); extern int ncx_getn_float_double(const void **xpp, size_t nelems, double *ip); extern int ncx_getn_float_uint(const void **xpp, size_t nelems, unsigned int *ip); extern int ncx_getn_float_longlong(const void **xpp, size_t nelems, longlong *ip); extern int ncx_getn_float_ulonglong(const void **xpp, size_t nelems, ulonglong *ip); extern int ncx_putn_float_schar(void **xpp, size_t nelems, const schar *ip); extern int ncx_putn_float_uchar(void **xpp, size_t nelems, const uchar *ip); extern int ncx_putn_float_short(void **xpp, size_t nelems, const short *ip); extern int ncx_putn_float_int(void **xpp, size_t nelems, const int *ip); extern int ncx_putn_float_long(void **xpp, size_t nelems, const long *ip); extern int ncx_putn_float_float(void **xpp, size_t nelems, const float *ip); extern int ncx_putn_float_double(void **xpp, size_t nelems, const double *ip); extern int ncx_putn_float_uint(void **xpp, size_t nelems, const unsigned int *ip); extern int ncx_putn_float_longlong(void **xpp, size_t nelems, const longlong *ip); extern int ncx_putn_float_ulonglong(void **xpp, size_t nelems, const ulonglong *ip); extern int ncx_getn_double_schar(const void **xpp, size_t nelems, schar *ip); extern int ncx_getn_double_uchar(const void **xpp, size_t nelems, uchar *ip); extern int ncx_getn_double_short(const void **xpp, size_t nelems, short *ip); extern int ncx_getn_double_int(const void **xpp, size_t nelems, int *ip); extern int ncx_getn_double_long(const void **xpp, size_t nelems, long *ip); extern int ncx_getn_double_float(const void **xpp, size_t nelems, float *ip); extern int ncx_getn_double_double(const void **xpp, size_t nelems, double *ip); extern int ncx_getn_double_uint(const void **xpp, size_t nelems, unsigned int *ip); extern int ncx_getn_double_longlong(const void **xpp, size_t nelems, longlong *ip); extern int ncx_getn_double_ulonglong(const void **xpp, size_t nelems, ulonglong *ip); extern int ncx_putn_double_schar(void **xpp, size_t nelems, const schar *ip); extern int ncx_putn_double_uchar(void **xpp, size_t nelems, const uchar *ip); extern int ncx_putn_double_short(void **xpp, size_t nelems, const short *ip); extern int ncx_putn_double_int(void **xpp, size_t nelems, const int *ip); extern int ncx_putn_double_long(void **xpp, size_t nelems, const long *ip); extern int ncx_putn_double_float(void **xpp, size_t nelems, const float *ip); extern int ncx_putn_double_double(void **xpp, size_t nelems, const double *ip); extern int ncx_putn_double_uint(void **xpp, size_t nelems, const unsigned int *ip); extern int ncx_putn_double_longlong(void **xpp, size_t nelems, const longlong *ip); extern int ncx_putn_double_ulonglong(void **xpp, size_t nelems, const ulonglong *ip); /* * Other aggregate conversion functions. */ /* read ASCII characters */ extern int ncx_getn_text(const void **xpp, size_t nchars, char *cp); extern int ncx_pad_getn_text(const void **xpp, size_t nchars, char *cp); /* write ASCII characters */ extern int ncx_putn_text(void **xpp, size_t nchars, const char *cp); extern int ncx_pad_putn_text(void **xpp, size_t nchars, const char *cp); /* for symmetry */ #define ncx_getn_char_char(xpp, nelems, fillp) ncx_getn_text(xpp, nelems, fillp) #define ncx_putn_char_char(xpp, nelems, fillp) ncx_putn_text(xpp, nelems, fillp) /* read opaque data */ extern int ncx_getn_void(const void **xpp, size_t nchars, void *vp); extern int ncx_pad_getn_void(const void **xpp, size_t nchars, void *vp); /* write opaque data */ extern int ncx_putn_void(void **xpp, size_t nchars, const void *vp); extern int ncx_pad_putn_void(void **xpp, size_t nchars, const void *vp); #endif /* _NCX_H_ */