2012-12-10 19:32:48 -06:00
|
|
|
// 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.
|
|
|
|
|
2012-07-19 12:10:22 -05:00
|
|
|
fn takes_two(x: &int, y: &int) -> int { *x + *y }
|
|
|
|
|
2013-11-19 18:34:19 -06:00
|
|
|
fn with<T>(f: |x: &int| -> T) -> T {
|
2012-07-19 12:10:22 -05:00
|
|
|
f(&20)
|
|
|
|
}
|
|
|
|
|
2013-03-25 15:21:04 -05:00
|
|
|
fn has_one<'a>(x: &'a int) -> int {
|
2013-11-21 19:23:21 -06:00
|
|
|
with(|y| takes_two(x, y))
|
2012-07-19 12:10:22 -05:00
|
|
|
}
|
|
|
|
|
2013-02-01 21:43:17 -06:00
|
|
|
pub fn main() {
|
2013-05-18 21:02:45 -05:00
|
|
|
assert_eq!(has_one(&2), 22);
|
2013-02-14 13:47:00 -06:00
|
|
|
}
|