[MPlayer-dev-eng] Use of memcpy with overlapping memory instead of memmove

attila attila at pai.kinali.ch
Sun Jul 18 06:51:26 CEST 2004


On Tue, Apr 06, 2004 at 01:56:20PM +0200, Alex Beregszaszi wrote:
> Hi,
> 
> > >> While I was editing mencoder.c I saw a few memcpy's with potential
> > >> overlapping source and destination.
> > 
> > > i think that's only of academic interest. or did you see an actual
> > > memcpy implementation that copies backwards?
> > 
> > I've seen (and created) some of them ... :-)
> > 
> > Point is of course, that it is better to just follow specifications.
> > Just rely on the fact that most implementations will work anyway, even
> > though it is not guaranteed, is kind of sloppy IMHO.
> Any progress on fixing these issues?:)

Looks like nobody cares enough.

			Attila Kinali




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