git.ozlabs.org Git - ccan/blob - ccan/typesafe_cb/test/compile_fail-typesafe_cb_cast-multi.c

   1 #include <ccan/typesafe_cb/typesafe_cb.h>
   2 #include <stdlib.h>
   3
   4 struct foo {
   5         int x;
   6 };
   7
   8 struct bar {
   9         int x;
  10 };
  11
  12 struct baz {
  13         int x;
  14 };
  15
  16 struct any {
  17         int x;
  18 };
  19
  20 struct other {
  21         int x;
  22 };
  23
  24 static void take_any(struct any *any)
  25 {
  26         (void)any;
  27 }
  28
  29 int main(void)
  30 {
  31 #ifdef FAIL
  32         struct other
  33 #if !HAVE_TYPEOF||!HAVE_BUILTIN_CHOOSE_EXPR||!HAVE_BUILTIN_TYPES_COMPATIBLE_P
  34 #error "Unfortunately we don't fail if typesafe_cb_cast is a noop."
  35 #endif
  36 #else
  37         struct foo
  38 #endif
  39                 *arg = NULL;
  40         take_any(typesafe_cb_cast3(struct any *,
  41                                    struct foo *, struct bar *, struct baz *,
  42                                    arg));
  43         return 0;
  44 }