// 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. struct Foo { x: int, } pub impl Foo { fn f(&const self) {} } fn g(x: &mut Foo) { x.f(); } pub fn main() { }