#![allow(unused_variables)]
fn main() {
    use std::alloc::{alloc_zeroed, dealloc, handle_alloc_error, Layout};
    unsafe {
        let layout = Layout::new::<u16>();
        let ptr = alloc_zeroed(layout);
        if ptr.is_null() {
            handle_alloc_error(layout);
        }
        assert_eq!(* (ptr as * mut u16), 0);
        dealloc(ptr, layout);
    }
}