mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-22 14:55:26 +00:00
14 lines
330 B
Rust
14 lines
330 B
Rust
// MutexGuard<Cell<i32>> must not be Sync, that would be unsound.
|
|
use std::sync::Mutex;
|
|
use std::cell::Cell;
|
|
|
|
fn test_sync<T: Sync>(_t: T) {}
|
|
|
|
fn main()
|
|
{
|
|
let m = Mutex::new(Cell::new(0i32));
|
|
let guard = m.lock().unwrap();
|
|
test_sync(guard);
|
|
//~^ ERROR `Cell<i32>` cannot be shared between threads safely [E0277]
|
|
}
|