rust/src/test/compile-fail/borrowck-mut-slice-of-imm-vec.rs

// 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 write(v: &mut [int]) {
    v[0] += 1;
}

fn main() {
    let v = vec!(1, 2, 3);
    write(v.as_mut_slice()); //~ ERROR cannot borrow
}