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Add an AV_PRAGMA() macro for constructing _Pragma() directives

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The seemingly equivalent _Pragma(AV_STRINGIFY(x)) is not accepted
by some compilers.

Originally committed as revision 21378 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-01-22 03:25:21 +00:00
parent c67278098d
commit d408b77a3a
1 changed files with 1 additions and 0 deletions
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libavutil/avutil.h
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@ -29,6 +29,7 @@
#define AV_STRINGIFY(s) AV_TOSTRING(s) #define AV_STRINGIFY(s) AV_TOSTRING(s)
#define AV_TOSTRING(s) #s #define AV_TOSTRING(s) #s
#define AV_PRAGMA(s) _Pragma(#s)
#define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c) #define AV_VERSION_INT(a, b, c) (a<<16 | b<<8 | c)
#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c #define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c