[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: INT_ADD_OVERFLOW broken?
|
From: |
Paul Eggert |
|
Subject: |
Re: INT_ADD_OVERFLOW broken? |
|
Date: |
Sat, 21 Sep 2013 23:59:32 -0700 |
|
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 |
Daniel Colascione wrote:
> Is INT_ADD_OVERFLOW actually safe?
It's supposed to be, yes.
As I recall, -Wstrict-overflow and -Wtype-limits issue many false
alarms, for INT_ADD_OVERFLOW as well as for other things, so I don't
recommend their use when building GNU Emacs. That's why
--enable-gcc-warnings doesn't enable these options.
It's possible that you've found a bug in INT_ADD_OVERFLOW;
to check that it'd be helpful to have a self-contained example
so that the problem can be reproduced and understood.