20 lines
809 B
Rust
20 lines
809 B
Rust
// 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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fn inc(x: &uint) -> uint { *x + 1 }
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pub fn main() {
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assert_eq!([1, 3].map_to_vec(inc), ~[2, 4]);
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assert_eq!([1, 2, 3].map_to_vec(inc), ~[2, 3, 4]);
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assert_eq!(old_iter::map_to_vec(&None::<uint>, inc), ~[]);
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assert_eq!(old_iter::map_to_vec(&Some(1u), inc), ~[2]);
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assert_eq!(old_iter::map_to_vec(&Some(2u), inc), ~[3]);
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}
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