24 lines
776 B
Rust
24 lines
776 B
Rust
// Copyright 2012-2014 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 iter_vec<T, F>(v: Vec<T> , mut f: F) where F: FnMut(&T) { for x in &v { f(x); } }
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pub fn main() {
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let v = vec![1, 2, 3, 4, 5, 6, 7];
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let mut odds = 0;
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iter_vec(v, |i| {
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if *i % 2 == 1 {
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odds += 1;
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}
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});
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println!("{}", odds);
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assert_eq!(odds, 4);
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}
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