move bswap functions to static inline in byteswap.h

This commit is contained in:
Rich Felker
2011-04-12 13:04:17 -04:00
parent 4f4ba4c02f
commit c546be175c
3 changed files with 25 additions and 16 deletions
+25
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@@ -0,0 +1,25 @@
#ifndef _BYTESWAP_H
#define _BYTESWAP_H
#include <stdint.h>
static inline uint16_t __bswap_16(uint16_t __x)
{
return __x<<8 | __x>>8;
}
static inline uint32_t __bswap_32(uint32_t __x)
{
return __x>>24 | __x>>8&0xff00 | __x<<8&0xff0000 | __x<<24;
}
static inline uint64_t __bswap_64(uint64_t __x)
{
return __bswap_32(__x)+0ULL<<32 | __bswap_32(__x>>32);
}
#define bswap_16(x) __bswap_16(x)
#define bswap_32(x) __bswap_32(x)
#define bswap_64(x) __bswap_64(x)
#endif
-7
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@@ -1,7 +0,0 @@
#include <endian.h>
#include <stdint.h>
uint32_t bswap_32(uint32_t x)
{
return x>>24 | x>>8&0xff00 | x<<8&0xff0000 | x<<24;
}
-9
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@@ -1,9 +0,0 @@
#include <endian.h>
#include <stdint.h>
uint32_t bswap_32(uint32_t);
uint64_t bswap_64(uint64_t x)
{
return bswap_32(x)+0LL<<32 | bswap_32(x>>32);
}