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avutil/mem: Fix invalid use of av_alloc_size
The alloc_size attribute is valid only on functions that return a pointer. GCC 9 (not yet released) warns about invalid usage: ./libavutil/mem.h:342:1: warning: 'alloc_size' attribute ignored on a function returning int' [-Wattributes] 342 | av_alloc_size(2, 3) int av_reallocp_array(void *ptr, size_t nmemb, size_t size); | ^~~~~~~~~~~~~ Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -339,7 +339,7 @@ av_alloc_size(2, 3) void *av_realloc_array(void *ptr, size_t nmemb, size_t size)
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* @warning Unlike av_malloc(), the allocated memory is not guaranteed to be
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* correctly aligned.
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*/
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av_alloc_size(2, 3) int av_reallocp_array(void *ptr, size_t nmemb, size_t size);
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int av_reallocp_array(void *ptr, size_t nmemb, size_t size);
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/**
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* Reallocate the given buffer if it is not large enough, otherwise do nothing.
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