[Bug c/19978] New: overflow in expression of constants should not cause multiple warnings

[jsm28 at gcc dot gnu dot org]

The test

#include <limits.h>

int
f (void)
{
  return INT_MAX + 1 - INT_MAX;
}

should yield only a single "integer overflow in expression" warning,
but yields two.  Not a regression.

-- 
           Summary: overflow in expression of constants should not cause
                    multiple warnings
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jsm28 at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19978