rust/tests/ui/typeck/typeck-default-trait-impl-n...

22 lines
345 B
Rust

#![feature(negative_impls)]
struct MySendable {
t: *mut u8
}
unsafe impl Send for MySendable {}
struct MyNotSendable {
t: *mut u8
}
impl !Send for MyNotSendable {}
fn is_send<T: Send>() {}
fn main() {
is_send::<MySendable>();
is_send::<MyNotSendable>();
//~^ ERROR `MyNotSendable` cannot be sent between threads safely
}