rust/tests/ui/transmutability/alignment/align-fail.rs

23 lines
532 B
Rust

//@ check-fail
#![feature(transmutability)]
mod assert {
use std::mem::{Assume, TransmuteFrom};
pub fn is_maybe_transmutable<Src, Dst>()
where
Dst: TransmuteFrom<Src, {
Assume {
alignment: false,
lifetimes: true,
safety: true,
validity: true,
}
}>
{}
}
fn main() {
assert::is_maybe_transmutable::<&'static [u8; 0], &'static [u16; 0]>(); //~ ERROR `&[u8; 0]` cannot be safely transmuted into `&[u16; 0]`
}