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// 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 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
extern mod std;
/**
* A function that returns a hash of a value
*
* The hash should concentrate entropy in the lower bits.
*/
type HashFn<K> = pure fn~(K) -> uint;
type EqFn<K> = pure fn~(K, K) -> bool;
enum LinearMap<K,V> {
LinearMap_({
resize_at: uint,
size: uint})
}
fn linear_map<K,V>() -> LinearMap<K,V> {
LinearMap_({
resize_at: 32,
size: 0})
}
impl<K,V> LinearMap<K,V> {
fn len(&mut self) -> uint {
self.size
}
}
fn main() {
let mut m = ~linear_map::<(),()>();
assert m.len() == 0;
}
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