1 // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT 2 // file at the top-level directory of this distribution and at 3 // http://rust-lang.org/COPYRIGHT. 4 // 5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or 6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license 7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your 8 // option. This file may not be copied, modified, or distributed 9 // except according to those terms. 10 11 // pretty-expanded FIXME #23616 12 13 #[cfg(feature = "use_core")] 14 extern crate core; 15 16 #[macro_use] 17 extern crate derivative; 18 19 use std::collections::hash_map::DefaultHasher; 20 21 #[derive(Derivative)] 22 #[derivative(Hash)] 23 struct Foo { 24 x: isize, 25 y: isize, 26 z: isize 27 } 28 29 #[test] main()30fn main() { 31 use std::hash::Hash; 32 let mut hasher = DefaultHasher::new(); 33 Foo { x: 0, y: 0, z: 0 }.hash(&mut hasher); 34 } 35