15 lines
284 B
Rust
15 lines
284 B
Rust
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fn swap[T](&vec[mutable T] v, int i, int j) {
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v.(i) <-> v.(j);
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}
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fn main() {
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let vec[mutable int] a = [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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auto 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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}
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