// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. fn want_slice(v: &[int]) -> int { let mut sum = 0; for i in v.iter() { sum += *i; } sum } fn has_mut_vec(v: ~[int]) -> int { want_slice(v) } pub fn main() { assert_eq!(has_mut_vec(~[1, 2, 3]), 6); }