gcc/testsuite/gcc.dg/c2y-generic-2.c

   1 /* Test C2Y _Generic features: warning with -Wc23-c2y-compat.  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-std=c2y -pedantic-errors -Wc23-c2y-compat" } */
   4
   5 _Static_assert (_Generic (const int, int : 1, const int : 2) == 2); /* { dg-warning "use of type name" } */
   6
   7 _Static_assert (_Generic (void, int : 1, void : 2) == 2); /* { dg-warning "use of type name" } */
   8 /* { dg-warning "incomplete type" "incomplete type" { target *-*-* } .-1 } */
   9
  10 _Static_assert (_Generic (int (), int (*) () : 1, int () : 2) == 2); /* { dg-warning "use of type name" } */
  11 /* { dg-warning "function type" "function type" { target *-*-* } .-1 } */
  12
  13 const int ci;
  14
  15 _Static_assert (_Generic (typeof (ci), const int : 1, int : 2) == 1); /* { dg-warning "use of type name" } */
  16
  17 _Static_assert (_Generic (ci, const int : 1, int : 2) == 2);