rust/tests/ui/extern/extern-types-not-sync-send.rs

19 lines
375 B
Rust

// Make sure extern types are !Sync and !Send.
#![feature(extern_types)]
extern "C" {
type A;
}
fn assert_sync<T: ?Sized + Sync>() {}
fn assert_send<T: ?Sized + Send>() {}
fn main() {
assert_sync::<A>();
//~^ ERROR `A` cannot be shared between threads safely [E0277]
assert_send::<A>();
//~^ ERROR `A` cannot be sent between threads safely [E0277]
}