1  /* Test old-style function definitions not in C2x: () gives type with
       2     a prototype.  */
       3  /* { dg-do compile } */
       4  /* { dg-options "-std=c2x" } */
       5  
       6  void
       7  f ()
       8  {
       9  }
      10  
      11  void
      12  g (void)
      13  {
      14    f (1); /* { dg-error "too many arguments to function" } */
      15  }