15 lines
272 B
Rust
15 lines
272 B
Rust
// run-pass
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use std::mem::swap;
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pub fn main() {
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let mut a: Vec<isize> = vec![0, 1, 2, 3, 4, 5, 6];
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a.swap(2, 4);
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assert_eq!(a[2], 4);
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assert_eq!(a[4], 2);
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let mut n = 42;
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swap(&mut n, &mut a[0]);
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assert_eq!(a[0], 42);
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assert_eq!(n, 0);
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}
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