gcc/testsuite/gcc.dg/c2x-old-style-definition-4.c

   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 }