1  /* Test for the bad usage of "nonnull" function attribute parms.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-Wnonnull-compare" } */
       4  
       5  void bar (char **);
       6  
       7  __attribute__((nonnull (1, 3))) int
       8  foo (char *cp1, char *cp2, char *cp3, char *cp4)
       9  {
      10    if (cp1 == (char *) 0) /* { dg-warning "'nonnull' argument" "cp1 compared to NULL" } */
      11      return 1;
      12  
      13    cp1 = cp2;
      14    if (cp1 == (char *) 0) /* { dg-bogus "'nonnull' argument" } */
      15      return 2;
      16  
      17    if (!cp4)	   /* { dg-bogus "'nonnull' argument" } */
      18      return 3;
      19  
      20    char **p = &cp3;
      21    bar (p);
      22    if (cp3 == (char *) 0) /* { dg-bogus "'nonnull' argument" } */
      23      return 4;
      24  
      25    return 5;
      26  }