// 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)] use std::gc::GC; fn foo(x: &uint) -> uint { *x } pub fn main() { let p = box(GC) 22u; let r = foo(p); println!("r={}", r); assert_eq!(r, 22u); }