rust/tests/ui/issues/issue-46855.rs
2024-02-16 20:02:50 +00:00

25 lines
408 B
Rust

//@ run-pass
#![allow(dead_code)]
//@ compile-flags: -Zmir-opt-level=1
use std::mem;
#[derive(Copy, Clone)]
enum Never {}
union Foo {
a: u64,
b: Never
}
fn foo(xs: [(Never, u32); 1]) -> u32 { xs[0].1 }
fn bar([(_, x)]: [(Never, u32); 1]) -> u32 { x }
fn main() {
println!("{}", mem::size_of::<Foo>());
let f = [Foo { a: 42 }, Foo { a: 10 }];
println!("{:?}", unsafe { f[0].a });
}