| // This checks that function pointer signatures that are referenced mutably | |
| // but contain a &mut T parameter still fail in a constant context: see issue #114994. | |
| // | |
| //@ check-fail | |
| const fn use_mut_const_fn(_f: &mut fn(&mut String)) { //~ ERROR mutable references are not allowed in constant functions | |
| () | |
| } | |
| const fn use_mut_const_tuple_fn(_f: (fn(), &mut u32)) { //~ ERROR mutable references are not allowed in constant functions | |
| } | |
| fn main() {} |