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1 | // Copyright 2012 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 | ||
c34b1796 AL |
11 | |
12 | #![feature(collections)] | |
13 | ||
1a4d82fc | 14 | extern crate collections; |
223e47cc | 15 | |
1a4d82fc | 16 | use std::collections::HashMap; |
223e47cc LB |
17 | |
18 | pub fn main() { | |
1a4d82fc | 19 | let mut h = HashMap::new(); |
85aaf69f SL |
20 | let kvs = [(1, 10), (2, 20), (3, 30)]; |
21 | for &(k,v) in &kvs { | |
1a4d82fc JJ |
22 | h.insert(k,v); |
23 | } | |
85aaf69f SL |
24 | let mut x = 0; |
25 | let mut y = 0; | |
26 | for (&k,&v) in &h { | |
1a4d82fc JJ |
27 | x += k; |
28 | y += v; | |
223e47cc | 29 | } |
1a4d82fc JJ |
30 | assert_eq!(x, 6); |
31 | assert_eq!(y, 60); | |
223e47cc | 32 | } |