[issue1621] Do not assume signed integer overflow behavior

[Alexandre Vassalotti]

Alexandre Vassalotti added the comment:

Hm. I don't get any warning, related to the overflow issue, neither with
-Wstrict-overflow=3, nor -Wstrict-overflow=5. Are the cPickle warnings
already fixed?

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