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Use bswap functions provided by MSVC and Apple

pull/218/head
Hleb Valoshka 2019-01-15 16:27:45 +03:00
parent 706c99d308
commit f367d7bacc
1 changed files with 24 additions and 3 deletions
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27
src/celutil/bytes.h
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@ -26,18 +26,39 @@
#endif
/* Use the system byteswap.h definitions if we have them */
#ifdef HAVE_BYTESWAP_H
#if defined(HAVE_BYTESWAP_H)
#include <byteswap.h>
#elif defined(__APPLE__)
#include <libkern/OSByteOrder.h>
#define bswap_16 OSSwapInt16
#define bswap_32 OSSwapInt32
#define bswap_64 OSSwapInt64
#elif defined(_MSC_VER) && (_MSC_VER >= 1400)
#include <stdlib.h>
#define bswap_32 _byteswap_ulong
#define bswap_16 _byteswap_ushort
#define bswap_64 _byteswap_uint64
#else
static unsigned short bswap_16 (unsigned short val)
static unsigned short bswap_16 (uint16_t val)
{
return ((((val) >> 8) & 0xff) | (((val) & 0xff) << 8));
}
static unsigned int bswap_32(unsigned int val) {
static unsigned int bswap_32(uint32_t val) {
return (((val) & 0xff000000) >> 24) | (((val) & 0x00ff0000) >> 8) |
(((val) & 0x0000ff00) << 8) | (((val) & 0x000000ff) << 24);
}
static unsigned int bswap_64(uint64_t val) {
return (((val & 0xff00000000000000ull) >> 56) |
((val & 0x00ff000000000000ull) >> 40) |
((val & 0x0000ff0000000000ull) >> 24) |
((val & 0x000000ff00000000ull) >> 8) |
((val & 0x00000000ff000000ull) << 8) |
((val & 0x0000000000ff0000ull) << 24) |
((val & 0x000000000000ff00ull) << 40) |
((val & 0x00000000000000ffull) << 56));
}
#endif
inline double bswap_double(double d)