rust/tests/compile-fail/never_transmute_void.rs

21 lines
445 B
Rust

// This should fail even without validation
// compile-flags: -Zmir-emit-validate=0 -Zmiri-disable-validation
#![feature(never_type)]
#![allow(unreachable_code)]
#![allow(unused_variables)]
enum Void {}
fn f(v: Void) -> ! {
match v {} //~ ERROR constant evaluation error
//~^ NOTE entered unreachable code
}
fn main() {
let v: Void = unsafe {
std::mem::transmute::<(), Void>(())
};
f(v); //~ inside call to `f`
}