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

19 lines
313 B
Rust

//@ run-pass
// Simple smoke test that unsafe traits can be compiled etc.
unsafe trait Foo {
fn foo(&self) -> isize;
}
unsafe impl Foo for isize {
fn foo(&self) -> isize { *self }
}
fn take_foo<F:Foo>(f: &F) -> isize { f.foo() }
fn main() {
let x: isize = 22;
assert_eq!(22, take_foo(&x));
}