mirror of https://github.com/rust-lang/rust
21 lines
394 B
Rust
21 lines
394 B
Rust
// Tests that two closures cannot simultaneously both have mutable
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// access to the variable. Related to issue #6801.
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fn get(x: &isize) -> isize {
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*x
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}
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fn set(x: &mut isize) {
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*x = 4;
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}
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fn a(x: &mut isize) {
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let mut c1 = || set(&mut *x);
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let mut c2 = || set(&mut *x);
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//~^ ERROR two closures require unique access to `x` at the same time
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c2(); c1();
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}
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fn main() {
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}
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