[Speex-dev] 64 bit integer spx_word64_t

[tunkeat]

hi,

jean-marc: am interested in just integer implementation. 
is the 64 bit used more for possibility of large values rather 
than accuracy?  could give me a rough idea of the 
range, typical value and the extremes off-hand? i take it
your workaround involves some complex manipulations 
instead of just using the 32bit to represent the more significant 
bits of 64-bit integer.  if yes, could you throw some ideas? thanks!

tk

On Tue, 11 Jan 2005 08:22:20 +0100, Claude Brisson <claude at renegat.net> wrote:
> On Tue, 2005-01-11 at 02:07 -0500, Jean-Marc Valin wrote:
> > > noticed there's a 64 bit integer being used in the long term prediction.
> > > any chance of using a 32 bit integer without incurring some major side-effects?
> >
> > A 32-bit integer may overflow (which is why I used a 64-bit int). Of
> > course, it's possible to emulate it using 32-bit arithmetic. Otherwise,
> > there's probably a work-around, but it would require rewriting that part
> > of the search.
> 
> 32 bits should be a concern, mon cher Jean-Marc, lowcosts are on this
> side
> 
> where do you leave ?
> 
> Claude
> 
> >       Jean-Marc
> >
> > > cheers,
> > > tk
> > > _______________________________________________
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> > > Speex-dev at xiph.org
> > > http://lists.xiph.org/mailman/listinfo/speex-dev
> > >
> --
> 
>