rust/tests/ui/uninit-empty-types.rs
2024-02-16 20:02:50 +00:00

20 lines
521 B
Rust

//@ build-pass
// Test the uninit() construct returning various empty types.
//@ pretty-expanded FIXME #23616
use std::mem::MaybeUninit;
struct Foo;
#[allow(deprecated)]
pub fn main() {
unsafe {
// `Foo` and `[Foo; 2]` are both zero sized and inhabited, so this is safe.
let _x: Foo = MaybeUninit::uninit().assume_init();
let _x: [Foo; 2] = MaybeUninit::uninit().assume_init();
let _x: Foo = std::mem::uninitialized();
let _x: [Foo; 2] = std::mem::uninitialized();
}
}