// Copyright 2014 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. fn each(x: &[T], f: |&T|) { for val in x.iter() { f(val) } } fn main() { let mut sum = 0u; let elems = [ 1u, 2, 3, 4, 5 ]; each(elems, ref |val| sum += *val); assert_eq!(sum, 15); }