]>
Commit | Line | Data |
---|---|---|
223e47cc LB |
1 | // Copyright 2012 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 | ||
223e47cc LB |
11 | pub fn main() { |
12 | // Make sure we properly handle repeated self-appends. | |
1a4d82fc | 13 | let mut a: String = "A".to_string(); |
85aaf69f | 14 | let mut i = 20; |
c34b1796 | 15 | let mut expected_len = 1; |
223e47cc | 16 | while i > 0 { |
1a4d82fc | 17 | println!("{}", a.len()); |
970d7e83 | 18 | assert_eq!(a.len(), expected_len); |
1a4d82fc | 19 | a = format!("{}{}", a, a); |
223e47cc | 20 | i -= 1; |
c34b1796 | 21 | expected_len *= 2; |
223e47cc LB |
22 | } |
23 | } |