rust/src/test/run-pass/packed-tuple-struct-layout.rs
Alex Crichton ec7c800d2f Remove pretty-expanded from failing tests
This commit removes pretty-expanded from all tests that wind up calling panic!
one way or another now that its internals are unstable.
2015-04-08 17:21:34 -07:00

32 lines
927 B
Rust

// 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!(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!(transd == [1, 0xff, 0, 0, 0xff]);
}
}