Message 58617 - Python tracker

Message58617

Author	loewis
Recipients	christian.heimes, gregory.p.smith, loewis
Date	2007-12-14.07:08:22
SpamBayes Score	0.07403968
Marked as misclassified	No
Message-id	<1197616103.08.0.236191756469.issue1621@psf.upfronthosting.co.za>
In-reply-to

Content
Using ansi is out of scope of this issue, and should not be mixed with it. -ansi is about disabling certain GCC extensions. This report is about C code in Python which has undefined behavior. I think there is disagreement on whether Python should stop relying on this particular undefined behavior (namely, whether the sum of two large positive numbers is negative). GvR (apparently) believes that the compiler should guarantee that the twos-complement semantic is available throughout the C language.

Content

Using ansi is out of scope of this issue, and should not be mixed with
it. -ansi is about disabling certain GCC extensions. This report is
about C code in Python which has undefined behavior.

I think there is disagreement on whether Python should stop relying on
this particular undefined behavior (namely, whether the sum of two large
positive numbers is negative). GvR (apparently) believes that the
compiler should guarantee that the twos-complement semantic is available
throughout the C language.

History
Date	User	Action	Args
2007-12-14 07:08:23	loewis	set	spambayes_score: 0.0740397 -> 0.07403968 recipients: + loewis, gregory.p.smith, christian.heimes
2007-12-14 07:08:23	loewis	set	spambayes_score: 0.0740397 -> 0.0740397 messageid: <1197616103.08.0.236191756469.issue1621@psf.upfronthosting.co.za>
2007-12-14 07:08:23	loewis	link	issue1621 messages
2007-12-14 07:08:22	loewis	create