[issue1621] Do not assume signed integer overflow behavior

[Guido van Rossum]

Guido van Rossum added the comment:

Thanks! Good catch about -Wall. I think I am now able to reproduce these
results with gcc 4.2. These results, while much more disturbing
regarding the state of our code base, at least restore my faith in GCC. :-)

__________________________________
Tracker <report at bugs.python.org>
<http://bugs.python.org/issue1621>
__________________________________