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avutil/mem: fix wrong comment 

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Zhao Zhili 2016-07-19 00:03:19 +08:00 committed by Michael Niedermayer
parent daf421d2ab
commit 450cf400fc
1 changed files with 2 additions and 2 deletions
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4
libavutil/mem.h
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@ -339,8 +339,8 @@ void *av_dynarray2_add(void **tab_ptr, int *nb_ptr, size_t elem_size,
static inline int av_size_mult(size_t a, size_t b, size_t *r) static inline int av_size_mult(size_t a, size_t b, size_t *r)
{ {
size_t t = a * b; size_t t = a * b;
/* Hack inspired from glibc: only try the division if nelem and elsize /* Hack inspired from glibc: don't try the division if nelem and elsize
* are both greater than sqrt(SIZE_MAX). */ * are both less than sqrt(SIZE_MAX). */
if ((a | b) >= ((size_t)1 << (sizeof(size_t) * 4)) && a && t / a != b) if ((a | b) >= ((size_t)1 << (sizeof(size_t) * 4)) && a && t / a != b)
return AVERROR(EINVAL); return AVERROR(EINVAL);
*r = t; *r = t;