1 // Copyright 2015 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 #![allow(deprecated)]
12 
13 #[cfg(feature = "use_core")]
14 extern crate core;
15 
16 use std::hash::{SipHasher, Hasher, Hash};
17 
18 #[macro_use]
19 extern crate derivative;
20 
21 #[derive(Derivative)]
22 #[derivative(Hash)]
23 struct Empty;
24 
25 #[test]
main()26 fn main() {
27     let mut s1 = SipHasher::new_with_keys(0, 0);
28     Empty.hash(&mut s1);
29     let mut s2 = SipHasher::new_with_keys(0, 0);
30     Empty.hash(&mut s2);
31     assert_eq!(s1.finish(), s2.finish());
32 }
33