| // Copyright 2018 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. |
| |
| // run-pass |
| |
| #![feature(const_str_len, const_str_as_bytes)] |
| |
| const S: &str = "foo"; |
| pub const B: &[u8] = S.as_bytes(); |
| |
| pub fn foo() -> [u8; S.len()] { |
| let mut buf = [0; S.len()]; |
| for (i, &c) in S.as_bytes().iter().enumerate() { |
| buf[i] = c; |
| } |
| buf |
| } |
| |
| fn main() { |
| assert_eq!(&foo()[..], b"foo"); |
| assert_eq!(foo().len(), S.len()); |
| const LEN: usize = S.len(); |
| assert_eq!(LEN, S.len()); |
| assert_eq!(B, foo()); |
| assert_eq!(B, b"foo"); |
| } |
