From: ts <decoux@...>
Date: 2004-08-31T23:25:18+09:00
Subject: Re: (Revised) [PATCH] Subtle bug in bignum.c

>>>>> "M" == Markus  <markus@reality.com> writes:

M> I did not do anything with "volatile," in part because I am not really a
M> C programmer, but mostly because (as I explained in the note after the
M> revised patch), I don't trust the idea of leaving things in registers in
M> the hopes that other, unrelated code will find them there.

 Well, probably I'm wrong but if you write it

   VALUE
   rb_big_and(x0, y0)
       VALUE x0, y0;
   {
       volatile VALUE x = x0;
       volatile VALUE y = y0;

 I think that perhaps it will work.
  
 Probably it best to do the same with rb_big_xor() and see if this case can
 exist with other functions in bignum.c


Guy Decoux