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intreadwrite: support DEC compiler __unaligned type qualifier

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Originally committed as revision 14275 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2008-07-18 01:18:59 +00:00
parent c6002ea14d
commit b7b38fb28a
1 changed files with 11 additions and 1 deletions
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12
libavutil/intreadwrite.h
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@ -37,7 +37,17 @@ struct unaligned_16 { uint16_t l; } __attribute__((packed));
#define AV_WN32(a, b) (((struct unaligned_32 *) (a))->l) = (b)
#define AV_WN64(a, b) (((struct unaligned_64 *) (a))->l) = (b)
#else /* __GNUC__ */
#elif defined(__DECC)
#define AV_RN16(a) (*((const __unaligned uint16_t*)(a)))
#define AV_RN32(a) (*((const __unaligned uint32_t*)(a)))
#define AV_RN64(a) (*((const __unaligned uint64_t*)(a)))
#define AV_WN16(a, b) *((__unaligned uint16_t*)(a)) = (b)
#define AV_WN32(a, b) *((__unaligned uint32_t*)(a)) = (b)
#define AV_WN64(a, b) *((__unaligned uint64_t*)(a)) = (b)
#else
#define AV_RN16(a) (*((const uint16_t*)(a)))
#define AV_RN32(a) (*((const uint32_t*)(a)))