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Apply "alloc_size" attribute to av_alloc, av_realloc and av_mallocz

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Originally committed as revision 12499 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Zuxy Meng 2008-03-19 07:30:34 +00:00
parent 85074d3c93
commit cca6d953c2
1 changed files with 9 additions and 3 deletions
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12
libavutil/mem.h
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@ -48,6 +48,12 @@
#define av_malloc_attrib
#endif
#if defined (__GNUC__) && (__GNU__ > 4 || __GNU__ == 4 && __GNU_MINOR__ > 1)
#define av_alloc_size(n) __attribute__((alloc_size(n)))
#else
#define av_alloc_size(n)
#endif
/**
* Allocate a block of \p size bytes with alignment suitable for all
* memory accesses (including vectors if available on the CPU).
@ -56,7 +62,7 @@
* it.
* @see av_mallocz()
*/
void *av_malloc(unsigned int size) av_malloc_attrib;
void *av_malloc(unsigned int size) av_malloc_attrib av_alloc_size(1);
/**
* Allocate or reallocate a block of memory.
@ -70,7 +76,7 @@ void *av_malloc(unsigned int size) av_malloc_attrib;
* reallocate or the function is used to free the memory block.
* @see av_fast_realloc()
*/
void *av_realloc(void *ptr, unsigned int size);
void *av_realloc(void *ptr, unsigned int size) av_alloc_size(2);
/**
* Free a memory block which has been allocated with av_malloc(z)() or
@ -91,7 +97,7 @@ void av_free(void *ptr);
* it.
* @see av_malloc()
*/
void *av_mallocz(unsigned int size) av_malloc_attrib;
void *av_mallocz(unsigned int size) av_malloc_attrib av_alloc_size(1);
/**
* Duplicate the string \p s.