1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
//@ run-pass
#![allow(dead_code)]
#![allow(overflowing_literals)]
use std::mem;
#[repr(packed)]
struct S<T, S> {
a: T,
b: u8,
c: S
}
pub fn main() {
unsafe {
let s = S { a: 0xff_ff_ff_ffu32, b: 1, c: 0xaa_aa_aa_aa as i32 };
let transd : [u8; 9] = mem::transmute(s);
// Don't worry about endianness, the numbers are palindromic.
assert_eq!(transd,
[0xff, 0xff, 0xff, 0xff,
1,
0xaa, 0xaa, 0xaa, 0xaa]);
let s = S { a: 1u8, b: 2u8, c: 0b10000001_10000001 as i16};
let transd : [u8; 4] = mem::transmute(s);
// Again, no endianness problems.
assert_eq!(transd,
[1, 2, 0b10000001, 0b10000001]);
}
}
|
