mirror of https://github.com/rust-lang/rust
33 lines
761 B
Rust
33 lines
761 B
Rust
//@ run-pass
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#![allow(dead_code)]
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#![allow(overflowing_literals)]
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use std::mem;
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#[repr(packed)]
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struct S<T, S> {
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a: T,
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b: u8,
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c: S
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}
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pub fn main() {
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unsafe {
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let s = S { a: 0xff_ff_ff_ffu32, b: 1, c: 0xaa_aa_aa_aa as i32 };
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let transd : [u8; 9] = mem::transmute(s);
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// Don't worry about endianness, the numbers are palindromic.
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assert_eq!(transd,
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[0xff, 0xff, 0xff, 0xff,
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1,
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0xaa, 0xaa, 0xaa, 0xaa]);
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let s = S { a: 1u8, b: 2u8, c: 0b10000001_10000001 as i16};
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let transd : [u8; 4] = mem::transmute(s);
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// Again, no endianness problems.
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assert_eq!(transd,
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[1, 2, 0b10000001, 0b10000001]);
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}
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}
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