mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-31 06:22:00 +00:00
13 lines
347 B
Rust
13 lines
347 B
Rust
// revisions: mirunsafeck thirunsafeck
|
|
// [thirunsafeck]compile-flags: -Z thir-unsafeck
|
|
|
|
#![feature(rustc_attrs)]
|
|
|
|
#[rustc_layout_scalar_valid_range_start(1)]
|
|
#[repr(transparent)]
|
|
pub(crate) struct NonZero<T>(pub(crate) T);
|
|
fn main() {
|
|
let mut x = unsafe { NonZero(1) };
|
|
x.0 = 0; //~ ERROR mutation of layout constrained field is unsafe
|
|
}
|