| // Copyright 2018 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // When mutably indexing a type that implements `Index` but not `IndexMut`, a |
| // special 'help' message is added to the output. |
| |
| |
| fn main() { |
| use std::collections::HashMap; |
| |
| let mut map = HashMap::new(); |
| map.insert("peter", "23".to_string()); |
| |
| map["peter"].clear(); //~ ERROR |
| map["peter"] = "0".to_string(); //~ ERROR |
| let _ = &mut map["peter"]; //~ ERROR |
| } |
