1  /* Test omitted parameter names in C2x: diagnosed with -Wc11-c2x-compat.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-std=c2x -pedantic-errors -Wc11-c2x-compat" } */
       4  
       5  void f (int) { } /* { dg-warning "omitting parameter names" } */