src/test/ui/consts/min_const_fn/allow_const_fn_ptr_run_pass.rs

   1 // run-pass
   2 #![feature(rustc_allow_const_fn_unstable)]
   3
   4 #![feature(rustc_attrs, staged_api)]
   5 #![stable(feature = "rust1", since = "1.0.0")]
   6
   7 #[stable(feature = "rust1", since = "1.0.0")]
   8 #[rustc_const_stable(since="1.0.0", feature = "mep")]
   9 const fn takes_fn_ptr(_: fn()) {}
  10
  11 const FN: fn() = || ();
  12
  13 const fn gives_fn_ptr() {
  14     takes_fn_ptr(FN)
  15 }
  16
  17 fn main() {
  18     gives_fn_ptr();
  19 }