mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 18:53:39 +00:00
26 lines
573 B
Rust
26 lines
573 B
Rust
//@ run-pass
|
|
#![allow(dead_code)]
|
|
#![allow(unused_variables)]
|
|
#![allow(non_local_definitions)]
|
|
#![feature(unsize, coerce_unsized)]
|
|
|
|
#[repr(packed)]
|
|
struct UnalignedPtr<'a, T: ?Sized>
|
|
where T: 'a,
|
|
{
|
|
data: &'a T,
|
|
}
|
|
|
|
fn main() {
|
|
|
|
impl<'a, T, U> std::ops::CoerceUnsized<UnalignedPtr<'a, U>> for UnalignedPtr<'a, T>
|
|
where
|
|
T: std::marker::Unsize<U> + ?Sized,
|
|
U: ?Sized,
|
|
{ }
|
|
|
|
let arr = [1, 2, 3];
|
|
let arr_unaligned: UnalignedPtr<[i32; 3]> = UnalignedPtr { data: &arr };
|
|
let arr_unaligned: UnalignedPtr<[i32]> = arr_unaligned;
|
|
}
|