1  /* { dg-do compile } */
       2  /* { dg-options "-Wlogical-not-parentheses" } */
       3  
       4  /* Test that we don't warn if rhs is 0 and comparison is == or !=.  */
       5  
       6  #ifndef __cplusplus
       7  #define bool _Bool
       8  #endif
       9  
      10  bool r;
      11  
      12  void
      13  f1 (int a)
      14  {
      15    r = !a == 0;
      16    r = !a != 0;
      17    r = !a == 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      18    r = !a != 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      19  }
      20  
      21  void
      22  f2 (int a)
      23  {
      24    r = !a > 0;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      25    r = !a >= 0;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      26    r = !a < 0;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      27    r = !a <= 0;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      28    r = !a > 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      29    r = !a >= 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      30    r = !a < 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      31    r = !a <= 1;	/* { dg-warning "logical not is only applied to the left hand side of comparison" } */
      32  }