| // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // 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)); |
| } |
