// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #[feature(managed_boxes)]; fn takes_mut(x: @mut int) { } fn takes_imm(x: @int) { } fn apply(t: T, f: |T|) { f(t) } fn main() { apply(@3, takes_mut); //~ ERROR (values differ in mutability) apply(@3, takes_imm); apply(@mut 3, takes_mut); apply(@mut 3, takes_imm); //~ ERROR (values differ in mutability) }