2012-12-10 19:32:48 -06:00
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// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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2015-03-22 15:13:15 -05:00
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2015-03-25 19:06:52 -05:00
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fn takes_two(x: &isize, y: &isize) -> isize { *x + *y }
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2012-07-19 12:10:22 -05:00
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2015-03-25 19:06:52 -05:00
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fn with<T, F>(f: F) -> T where F: FnOnce(&isize) -> T {
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2012-07-19 12:10:22 -05:00
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f(&20)
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}
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2015-03-25 19:06:52 -05:00
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fn has_one<'a>(x: &'a isize) -> isize {
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2013-11-21 19:23:21 -06:00
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with(|y| takes_two(x, y))
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2012-07-19 12:10:22 -05:00
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}
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2013-02-01 21:43:17 -06:00
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pub fn main() {
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2013-05-18 21:02:45 -05:00
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assert_eq!(has_one(&2), 22);
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2013-02-14 13:47:00 -06:00
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}
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