1 // Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution.
4 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
5 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
7 // option. This file may not be copied, modified, or distributed
8 // except according to those terms.
11 #[derive(Copy, Clone)]
15 fn chars(self) -> std::str::Chars<'static> {
22 let def = String::from("def");
23 let mut s = String::new();
26 s.extend(abc.chars());
29 s.extend("abc".chars());
32 s.extend(def.chars());
34 s.extend(abc.chars().skip(1));
35 s.extend("abc".chars().skip(1));
36 s.extend(['a', 'b', 'c'].iter());