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Use alias-safe types in AV_[RW] macros 

Originally committed as revision 21878 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-02-18 13:40:21 +00:00
parent d10458c9e2
commit 0c76e635f5
1 changed files with 7 additions and 7 deletions
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14
libavutil/intreadwrite.h
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@ -177,12 +177,12 @@ typedef union {
#if HAVE_ATTRIBUTE_PACKED
struct unaligned_64 { uint64_t l; } __attribute__((packed));
struct unaligned_32 { uint32_t l; } __attribute__((packed));
struct unaligned_16 { uint16_t l; } __attribute__((packed));
union unaligned_64 { uint64_t l; } __attribute__((packed)) av_alias;
union unaligned_32 { uint32_t l; } __attribute__((packed)) av_alias;
union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias;
# define AV_RN(s, p) (((const struct unaligned_##s *) (p))->l)
# define AV_WN(s, p, v) ((((struct unaligned_##s *) (p))->l) = (v))
# define AV_RN(s, p) (((const union unaligned_##s *) (p))->l)
# define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v))
#elif defined(__DECC)
@ -191,8 +191,8 @@ struct unaligned_16 { uint16_t l; } __attribute__((packed));
#elif HAVE_FAST_UNALIGNED
# define AV_RN(s, p) (*((const uint##s##_t*)(p)))
# define AV_WN(s, p, v) (*((uint##s##_t*)(p)) = (v))
# define AV_RN(s, p) (((const av_alias##s*)(p))->u##s)
# define AV_WN(s, p, v) (((uint##s##_t*)(p))->u##s = (v))
#else