14 lines
310 B
Rust
14 lines
310 B
Rust
// xfail-pretty
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fn swap[@T](v: &vec[mutable T], i: int, j: int) { v.(i) <-> v.(j); }
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fn main() {
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let a: vec[mutable int] = [mutable 0, 1, 2, 3, 4, 5, 6];
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swap(a, 2, 4);
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assert (a.(2) == 4);
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assert (a.(4) == 2);
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let n = 42;
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n <-> a.(0);
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assert (a.(0) == 42);
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assert (n == 0);
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} |