// run-pass #![allow(dead_code)] #![allow(overflowing_literals)] use std::mem; #[repr(packed)] struct 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]); } }