| // Copyright 2012 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. |
| |
| |
| trait Mumbo { |
| fn jumbo(&self, x: &usize) -> usize; |
| } |
| |
| impl Mumbo for usize { |
| // Cannot have a larger effect than the trait: |
| unsafe fn jumbo(&self, x: &usize) { *self + *x; } |
| //~^ ERROR method `jumbo` has an incompatible type for trait |
| //~| expected normal fn, |
| //~| found unsafe fn |
| } |
| |
| fn main() {} |
