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//@ check-pass
//! This UI test was introduced as check-fail by a buggy bug-fix for an ICE. In
//! fact, this transmutation should be valid.
#![crate_type = "lib"]
#![feature(transmutability)]
#![allow(dead_code)]
use std::mem::size_of;
mod assert {
use std::mem::{Assume, TransmuteFrom};
pub fn is_maybe_transmutable<Src, Dst>()
where
Dst: TransmuteFrom<
Src,
{ Assume { alignment: true, lifetimes: true, safety: true, validity: true } },
>,
{
}
}
fn test() {
#[repr(C, align(2))]
struct A(u8, u8);
#[repr(C)]
struct B(u8, u8);
assert_eq!(size_of::<A>(), size_of::<B>());
assert::is_maybe_transmutable::<B, A>();
}
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