25 lines
746 B
Rust
25 lines
746 B
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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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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pub fn main() {
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let mut s = ~"a";
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s += ~"b";
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assert (s[0] == 'a' as u8);
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assert (s[1] == 'b' as u8);
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s += ~"c";
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s += ~"d";
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assert (s[0] == 'a' as u8);
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assert (s[1] == 'b' as u8);
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assert (s[2] == 'c' as u8);
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assert (s[3] == 'd' as u8);
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}
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