Plain POSIX malloc(0) is allowed to return either NULL or a
non-NULL pointer. The calling code should be ready to handle
a NULL return as a correct return (instead of a failure) if the size
to allocate was 0 - this makes sure the condition is handled
in a consistent way across platforms.
This also avoids calling posix_memalign(&ptr, 32, 0) on OS X,
which returns an invalid pointer (a non-NULL pointer that causes
crashes when passed to av_free).
Abort in debug mode, to help track down issues related to
incorrect handling of this case.
Signed-off-by: Martin Storsjö <martin@martin.st>
long diff;
#endif
+ assert(size);
+
/* let's disallow possible ambiguous cases */
- if(size > (INT_MAX-32) )
+ if (size > (INT_MAX-32) || !size)
return NULL;
#if CONFIG_MEMALIGN_HACK