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.
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.
11 #![allow(unknown_features)]
12 #![feature(box_syntax)]
15 struct LM { resize_at: uint, size: uint }
18 HashMap_(LM, Vec<(K,V)>)
21 fn linear_map<K,V>() -> HashMap<K,V> {
27 impl<K,V> HashMap<K,V> {
28 pub fn len(&mut self) -> uint {
30 HashMap::HashMap_(ref l, _) => l.size
36 let mut m = box linear_map::<(),()>();
37 assert_eq!(m.len(), 0);