1 // Copyright 2017 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 use std::ops::{Index, IndexMut};
20 impl Index<u32> for H {
22 fn index(&self, index: u32) -> &S {
27 impl IndexMut<u32> for H {
28 fn index_mut(&mut self, index: u32) -> &mut S {
34 H["?"].f(); //~ ERROR mismatched types