gcc/testsuite/g++.dg/warn/overflow-warn-6.C


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

/* Test non-constant operands in overflowed expressions.  */
/* { dg-do compile } */
/* { dg-options "-Woverflow" } */

#include <limits.h>

int 
h1 (int x)
{
  return x * (0 * (INT_MAX + 1)); /* { dg-warning "integer overflow in expression" } */
}

int 
h2 (int x)
{
  return ((INT_MAX + 1) * 0) * x; /* { dg-warning "integer overflow in expression" } */
}