41 lines
986 B
Rust
41 lines
986 B
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#[derive(Copy, Clone)]
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struct HasChars;
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impl HasChars {
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fn chars(self) -> std::str::Chars<'static> {
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"HasChars".chars()
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}
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}
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fn main() {
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let abc = "abc";
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let def = String::from("def");
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let mut s = String::new();
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s.push_str(abc);
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s.extend(abc.chars());
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s.push_str("abc");
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s.extend("abc".chars());
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s.push_str(&def);
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s.extend(def.chars());
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s.extend(abc.chars().skip(1));
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s.extend("abc".chars().skip(1));
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s.extend(['a', 'b', 'c'].iter());
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let f = HasChars;
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s.extend(f.chars());
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}
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