gcc/testsuite/gcc.dg/c2x-unproto-2.c

   1 /* Test compatibility of unprototyped and prototyped function types (C2x makes
   2    the case of types affected by default argument promotions compatible).  Test
   3    invalid-in-C2x usages.  */
   4 /* { dg-do compile } */
   5 /* { dg-options "-std=c2x -pedantic-errors" } */
   6
   7 void f1 (); /* { dg-message "previous declaration" } */
   8 void f1 (int, ...); /* { dg-error "conflicting types" } */
   9 /* { dg-message "ellipsis" "" { target *-*-* } .-1 } */
  10
  11 void f2 (int, ...); /* { dg-message "previous declaration" } */
  12 void f2 (); /* { dg-error "conflicting types" } */
  13 /* { dg-message "ellipsis" "" { target *-*-* } .-1 } */
  14
  15 void f3 (); /* { dg-message "previous declaration" } */
  16 void f3 (char, ...); /* { dg-error "conflicting types" } */
  17 /* { dg-message "ellipsis" "" { target *-*-* } .-1 } */
  18
  19 void f4 (char, ...); /* { dg-message "previous declaration" } */
  20 void f4 (); /* { dg-error "conflicting types" } */
  21 /* { dg-message "ellipsis" "" { target *-*-* } .-1 } */