25 lines
716 B
Rust
25 lines
716 B
Rust
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(optin_builtin_traits)]
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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 the trait `core::marker::Sync` is not implemented
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}
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