mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-16 10:35:22 +00:00
15 lines
247 B
Rust
15 lines
247 B
Rust
#![feature(negative_impls)]
|
|
|
|
use std::marker::Sync;
|
|
|
|
struct Foo { a: isize }
|
|
impl !Sync for Foo {}
|
|
|
|
fn bar<T: Sync>(_: T) {}
|
|
|
|
fn main() {
|
|
let x = Foo { a: 5 };
|
|
bar(x);
|
|
//~^ ERROR `Foo` cannot be shared between threads safely [E0277]
|
|
}
|