30 lines
780 B
Rust
30 lines
780 B
Rust
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// Copyright 2017 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 tups = vec![(0u8, 1u8)];
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for (n, m) in &tups {
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let _: &u8 = n;
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let _: &u8 = m;
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}
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for (n, m) in &mut tups {
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*n += 1;
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*m += 2;
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}
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assert_eq!(tups, vec![(1u8, 3u8)]);
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for (n, m) in tups {
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println!("{} {}", m, n);
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}
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}
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