| // 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 range_<F>(a: isize, b: isize, mut it: F) where F: FnMut(isize) { |
| assert!((a < b)); |
| let mut i: isize = a; |
| while i < b { it(i); i += 1; } |
| } |
| |
| pub fn main() { |
| let mut sum: isize = 0; |
| range_(0, 100, |x| sum += x ); |
| println!("{}", sum); |
| } |
