maybe0

maybe0.rs

#![feature(maybe_uninit_as_bytes)]  // https://github.com/rust-lang/rust/issues/93092
#![feature(maybe_uninit_slice)]

use std::hint::black_box;
use std::mem::MaybeUninit;

#[unsafe(no_mangle)] pub extern "C" fn maybe0() -> bool {
  let str: MaybeUninit<String> = MaybeUninit::zeroed();
  unsafe {str.as_bytes().assume_init_ref()} .iter().all (|&b| b == 0)}

#[unsafe(no_mangle)] pub extern "C" fn maybe0black() -> bool {
  let str: MaybeUninit<String> = MaybeUninit::zeroed();
  unsafe {black_box (str.as_bytes().assume_init_ref())} .iter().all (|&b| b == 0)}

fn main() {let _ = maybe0black();}