[Vorbis-dev] Add vorbis_dsp_init() ?

[ogg.k.ogg.k at googlemail.com]

> Is a memset of zeros also promised to create proper null pointers just
> as assigning with zero?  (The value in memory for a null pointer isn't
> guarenteed to be the all zero bit sequence)

Pedantically, I think not (though I'm very hazy with the distinction
of the null pointer and its bit pattern that can be non zeros).
Are you aware of an implementation that does this ? I do recall
eerie discussions about assigments of a pointer with 0 yielding
this non zero bit pattern, but that was years ago.

Moreover, I'm entirely in the dark what would then happen to:

void foo(char *p)
{
  if (p) *p=0;
}

Would the test of p test against the null pointer, or cast p to an
int, then test this int ?