[FFmpeg-devel] [PATCH 1/3] Replace DUP_DATA & memset with 0 by av_mallocz

Nicolas George nicolas.george at normalesup.org
Mon Sep 17 18:56:58 CEST 2012

Le jour du Génie, an CCXX, Andrey Utkin a écrit :
> Offtop childish question: does malloc(struct_size * number) always alloc
> same size as calloc(number, struct_size)? I.e. is having two params in
> calloc() a nonsense?

No: struct_size * number can overflow and allocate less memory than
intended. calloc with its two arguments checks the overflow and returns an


  Nicolas George
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