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https://github.com/Unidata/netcdf-c.git
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78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
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/*********************************************************************
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* Copyright 2016, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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*********************************************************************/
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#ifndef D4UTIL_H
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#define D4UTIL_H 1
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#ifdef HAVE_MEMMOVE
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#define d4memmove(dst,src,n) memmove(dst,src,n)
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#else
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#define d4memmove(dst,src,n) localmemmove(dst,src,n)
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#endif
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/* This is intended to be big enough to work as
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an offset/position/size for a file or a memory block.
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*/
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typedef unsigned long long d4size_t;
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/* Define an counted memory marker */
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typedef struct D4blob {d4size_t size; void* memory;} D4blob;
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/**************************************************/
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/* signature: void swapinline16(void* ip) */
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#define swapinline16(ip) \
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{ \
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union {char b[2]; unsigned short i;} u; \
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char* src = (char*)(ip); \
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u.b[0] = src[1]; \
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u.b[1] = src[0]; \
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*((unsigned short*)ip) = u.i; \
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}
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/* signature: void swapinline32(void* ip) */
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#define swapinline32(ip) \
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{ \
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union {char b[4]; unsigned int i;} u; \
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char* src = (char*)(ip); \
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u.b[0] = src[3]; \
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u.b[1] = src[2]; \
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u.b[2] = src[1]; \
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u.b[3] = src[0]; \
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*((unsigned int*)ip) = u.i; \
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}
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/* signature: void swapinline64(void* ip) */
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#define swapinline64(ip) \
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{ \
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union {char b[8]; unsigned long long i;} u; \
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char* src = (char*)(ip); \
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u.b[0] = src[7]; \
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u.b[1] = src[6]; \
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u.b[2] = src[5]; \
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u.b[3] = src[4]; \
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u.b[4] = src[3]; \
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u.b[5] = src[2]; \
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u.b[6] = src[1]; \
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u.b[7] = src[0]; \
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*((unsigned long long*)ip) = u.i; \
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}
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/***************************************************/
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/* Define the NCD4node.data.flags */
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#define HASNIL (0) /* no flags set */
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#define HASSEQ (1) /* transitively contains sequence(s)*/
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#define HASSTR (2) /* transitively contains strings */
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#define HASOPFIX (4) /* transitively contains fixed size opaques */
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#define HASOPVAR (8) /* transitively contains variable size opaques */
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#define LEAFSEQ (16) /* mark leaf sequences */
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#define HASANY (HASNIL|HASSEQ|HASSTR|HASOPTFIX|HASOPVAR)
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/***************************************************/
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extern int ncd4__testurl(const char* parth, char** basename);
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#endif /*D4UTIL_H*/
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