2007-01-07 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
PR c++/28986
cp/
* typeck.c (build_binary_op): Call overflow_warning if
TREE_OVERFLOW_P is true for the result and not for any of the
operands.
testsuite/
* g++.dg/conversion/nullptr1.C: Added overflow warning.
* g++.dg/warn/overflow-warn-1.C: New.
* g++.dg/warn/overflow-warn-3.C: New.
* g++.dg/warn/overflow-warn-4.C: New.
* g++.dg/warn/overflow-warn-5.C: New.
* g++.dg/warn/overflow-warn-6.C: New.
* g++.dg/warn/Woverflow-1.C: New.
* g++.dg/warn/Woverflow-2.C: New.
* g++.dg/warn/Woverflow-3.C: New.
* g++.dg/warn/multiple-overflow-warn-2.C: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120558
138bc75d-0d04-0410-961f-
82ee72b054a4