src/test/run-pass/capture-clauses-unboxed-closures.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![feature(unboxed_closures)]
  12
  13 fn each<'a,T,F:FnMut(&'a T)>(x: &'a [T], mut f: F) {
  14     for val in x {
  15         f(val)
  16     }
  17 }
  18
  19 fn main() {
  20     let mut sum = 0_usize;
  21     let elems = [ 1_usize, 2, 3, 4, 5 ];
  22     each(&elems, |val: &uint| sum += *val);
  23     assert_eq!(sum, 15);
  24 }