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[Bug c++/47504] some constexpr calculations erroneously overflow when using negative numbers
- From: "jason at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 17 Mar 2011 22:01:04 +0000
- Subject: [Bug c++/47504] some constexpr calculations erroneously overflow when using negative numbers
- Auto-submitted: auto-generated
- References: <bug-47504-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47504
--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> 2011-03-17 22:00:51 UTC ---
Author: jason
Date: Thu Mar 17 22:00:47 2011
New Revision: 171116
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171116
Log:
PR c++/47504
* semantics.c (cxx_eval_constant_expression) [NOP_EXPR]: Don't let
the conversion set TREE_OVERFLOW.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-overflow2.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/semantics.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-data2.C