| // 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. |
| |
| #![feature(box_syntax)] |
| |
| trait Foo { |
| } |
| |
| impl<T:Copy> Foo for T { |
| } |
| |
| fn take_param<T:Foo>(foo: &T) { } |
| |
| fn main() { |
| let x: Box<_> = box 3; |
| take_param(&x); |
| //~^ ERROR `std::boxed::Box<{integer}>: std::marker::Copy` is not satisfied |
| } |