1  /* { dg-do compile } */
       2  /* { dg-options "-w" } */
       3  
       4  
       5  int foo(int x)
       6  {
       7    switch(x)
       8    {
       9  
      10    case 0 % 0:	 /* { dg-error "case label does not reduce to an integer constant" } */
      11      return 1;
      12    default:
      13      return 2;
      14    }
      15  }