// 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. // -*- rust -*- pub fn main() { let a: ~str = ~"hello"; let b: ~str = ~"world"; let s: ~str = a + b; log(debug, copy s); assert (s[9] == 'd' as u8); }