mirror of https://github.com/rust-lang/rust
35 lines
798 B
Rust
35 lines
798 B
Rust
// Ensure that we cannot move out of a reference to a fixed-size array
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struct D { _x: u8 }
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impl Drop for D { fn drop(&mut self) { } }
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fn move_elem(a: &[D; 4]) -> D {
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let [_, e, _, _] = *a; //~ ERROR cannot move
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e
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}
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fn move_subarr(a: &[D; 4]) -> [D; 2] {
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let [_, s @ .. , _] = *a; //~ ERROR cannot move
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s
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}
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fn move_elem_mut(a: &mut [D; 4]) -> D {
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let [_, e, _, _] = *a; //~ ERROR cannot move
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e
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}
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fn move_subarr_mut(a: &mut [D; 4]) -> [D; 2] {
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let [_, s @ .. , _] = *a; //~ ERROR cannot move
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s
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}
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fn main() {
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fn d() -> D { D { _x: 0 } }
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move_elem(&[d(), d(), d(), d()]);
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move_subarr(&[d(), d(), d(), d()]);
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move_elem_mut(&mut [d(), d(), d(), d()]);
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move_subarr_mut(&mut [d(), d(), d(), d()]);
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}
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