gcc/testsuite/gcc.dg/divbyzero.c

   1 /* Copyright (C) 2001 Free Software Foundation, Inc.  */
   2
   3 /* { dg-do compile } */
   4
   5 /* Source: Neil Booth, Oct 22 2001.  PR 150 - warn about division by
   6    zero.  */
   7
   8 #define ZERO (4 - 6 + 2)
   9
  10 int main (int argc, char *argv[])
  11 {
  12   int w = argc % ZERO;          /* { dg-warning "division by zero" } */
  13   int x = argc / 0;             /* { dg-warning "division by zero" } */
  14   int y = argc / ZERO;          /* { dg-warning "division by zero" } */
  15
  16   double z = 0.0 / 0.0  ;       /* { dg-bogus "division by zero" } */
  17   w = (ZERO ? y / ZERO : x);    /* { dg-bogus "division by zero" } */
  18   x = (ZERO ? argc % ZERO: x);  /* { dg-bogus "division by zero" } */
  19
  20   return 0;
  21 }