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15 lines
247 B
Rust
15 lines
247 B
Rust
#![feature(negative_impls)]
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use std::marker::Sync;
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struct Foo { a: isize }
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impl !Sync for Foo {}
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fn bar<T: Sync>(_: T) {}
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fn main() {
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let x = Foo { a: 5 };
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bar(x);
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//~^ ERROR `Foo` cannot be shared between threads safely [E0277]
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}
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