24 lines
698 B
Rust
24 lines
698 B
Rust
// 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.
|
|
|
|
fn takes_two(x: &int, y: &int) -> int { *x + *y }
|
|
|
|
fn with<T>(f: &fn(x: &int) -> T) -> T {
|
|
f(&20)
|
|
}
|
|
|
|
fn has_one<'a>(x: &'a int) -> int {
|
|
do with |y| { takes_two(x, y) }
|
|
}
|
|
|
|
pub fn main() {
|
|
assert_eq!(has_one(&2), 22);
|
|
}
|