| // Copyright 2013 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. |
| |
| use std::mem; |
| |
| #[repr(packed)] |
| struct S4(u8,[u8; 3]); |
| |
| #[repr(packed)] |
| struct S5(u8,u32); |
| |
| pub fn main() { |
| unsafe { |
| let s4 = S4(1, [2,3,4]); |
| let transd : [u8; 4] = mem::transmute(s4); |
| assert_eq!(transd, [1, 2, 3, 4]); |
| |
| let s5 = S5(1, 0xff_00_00_ff); |
| let transd : [u8; 5] = mem::transmute(s5); |
| // Don't worry about endianness, the u32 is palindromic. |
| assert_eq!(transd, [1, 0xff, 0, 0, 0xff]); |
| } |
| } |
