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__BYTE_ORDER__ not supported on GCC 4.0

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fincs 2014-12-11 00:38:25 +01:00
parent d6485ea332
commit 4b1f834e01
1 changed files with 7 additions and 0 deletions
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7
source/types.h
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@ -17,6 +17,13 @@ typedef uint8_t u8;
#define BIT(n) (1U << (n))
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)
#ifndef __BYTE_ORDER__
#include <sys/param.h>
#define __BYTE_ORDER__ BYTE_ORDER
#define __ORDER_LITTLE_ENDIAN__ LITTLE_ENDIAN
#define __ORDER_BIG_ENDIAN__ BIG_ENDIAN
#endif
static inline uint16_t __builtin_bswap16(uint16_t x)
{
return ((x << 8) & 0xff00) | ((x >> 8) & 0x00ff);