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1a4d82fc | 1 | // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
223e47cc LB |
2 | // file at the top-level directory of this distribution and at |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
1a4d82fc | 11 | // Simple smoke test that unsafe traits can be compiled etc. |
223e47cc | 12 | |
c34b1796 | 13 | |
1a4d82fc | 14 | unsafe trait Foo { |
c34b1796 | 15 | fn foo(&self) -> isize; |
970d7e83 LB |
16 | } |
17 | ||
c34b1796 AL |
18 | unsafe impl Foo for isize { |
19 | fn foo(&self) -> isize { *self } | |
223e47cc | 20 | } |
970d7e83 | 21 | |
c34b1796 | 22 | fn take_foo<F:Foo>(f: &F) -> isize { f.foo() } |
1a4d82fc | 23 | |
970d7e83 | 24 | fn main() { |
c34b1796 | 25 | let x: isize = 22; |
1a4d82fc JJ |
26 | assert_eq!(22, take_foo(&x)); |
27 | } |