[FFmpeg-cvslog] r12165 - trunk/libavcodec/dsputil.c

[Uoti Urpala]

On Thu, 2008-02-21 at 21:20 +0000, M?ns Rullg?rd wrote:
> > static const unsigned long pb_7f = -1UL/255 * 0x7f;
> 
> This assumes two's complement signed numbers.  Using ~0UL avoids this
> assumption.

No it does not. The only operation done to signed numbers is converting
255 and 0x7f to unsigned long, and the result of that does not depend on
representation.