rust/tests/ui/traits/safety-ok-cc.rs
2024-02-16 20:02:50 +00:00

25 lines
452 B
Rust

//@ run-pass
//@ aux-build:trait_safety_lib.rs
// Simple smoke test that unsafe traits can be compiled across crates.
extern crate trait_safety_lib as lib;
use lib::Foo;
struct Bar { x: isize }
unsafe impl Foo for Bar {
fn foo(&self) -> isize { self.x }
}
fn take_foo<F:Foo>(f: &F) -> isize { f.foo() }
fn main() {
let x: isize = 22;
assert_eq!(22, take_foo(&x));
let x: Bar = Bar { x: 23 };
assert_eq!(23, take_foo(&x));
}