http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59324
Bug ID: 59324
Summary: C++11: -Wsequence-point
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mathieu.malaterre at gmail dot com
It would be nice to remove the following warning about UB when compiling in
C++11 mode:
$ cat t.cxx
int main()
{
int b = 1;
int m = (b++) + (++b);
(void)m;
return 0;
}
$ g++ -std=c++11 -Wsequence-point t.cxx
t.cxx: In function 'int main()':
t.cxx:4:23: warning: operation on 'b' may be undefined [-Wsequence-point]
int m = (b++) + (++b);
^
$ g++ --version
g++ (Debian 4.8.2-1) 4.8.2
