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[Bug libstdc++/22200] numeric_limits<signed>::is_modulo is inconsistend with gcc
- From: "veksler at il dot ibm dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 Jun 2005 15:33:40 -0000
- Subject: [Bug libstdc++/22200] numeric_limits<signed>::is_modulo is inconsistend with gcc
- References: <20050627151911.22200.veksler@il.ibm.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From veksler at il dot ibm dot com 2005-06-27 15:33 -------
This is a bug because std::numeric_limits<signed>::is_modulo
should be true only if singed overflow is defined.
This is not the case with gcc, because gcc does not have the
extension "signed oveflow == module" then is_modulo should
not lie.
The undefinedness referse to MAX_INT+1 not to is_modulo.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22200