1  /* { dg-options "-fshow-column -Wall -Wfloat-equal -pedantic" } */
       2  
       3  int i, j;
       4  float a, b;
       5  
       6  int *p;
       7  struct {
       8  	int a;
       9  	char b;
      10  } *q;
      11  
      12  extern void bar();
      13  
      14  void foo (void)
      15  {
      16    if (a == b) /* { dg-warning "9:comparing floating-point with" } */
      17      bar ();
      18  
      19    if (p < q) /* { dg-warning "9:comparison of distinct pointer types" } */
      20      bar ();
      21  
      22    if (&p == 0) /* { dg-warning "10:comparison will always evaluate as 'false'" } */
      23      bar();
      24  
      25    if (p == 4) /* { dg-warning "9:comparison between pointer and integer" } */
      26      bar();
      27  
      28    if (p < 0) /* { dg-warning "9:ordered comparison of pointer with" } */
      29      bar();
      30  
      31    -q;	 /* { dg-error "3:wrong type argument to unary" } */
      32  
      33    ~q;    /* { dg-error "3:wrong type argument to bit" } */
      34  
      35    ++*q; /* { dg-error "3:wrong type argument to increment" } */
      36  
      37    i = j / 0;  /* { dg-warning "9:division by zero" } */
      38  
      39    i /= 0; /* { dg-warning "5:division by zero" } */
      40  }