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

   1 fn main() {}
   2
   3 const fn unsize(x: &[u8; 3]) -> &[u8] { x }
   4 const fn closure() -> fn() { || {} }
   5 //~^ ERROR function pointers in const fn are unstable
   6 const fn closure2() {
   7     (|| {}) as fn();
   8 //~^ ERROR function pointers in const fn are unstable
   9 }
  10 const fn reify(f: fn()) -> unsafe fn() { f }
  11 //~^ ERROR function pointers in const fn are unstable
  12 const fn reify2() { main as unsafe fn(); }
  13 //~^ ERROR function pointers in const fn are unstable