rust/library/core/tests/alloc.rs

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use core::alloc::Layout;
use core::ptr::NonNull;
#[test]
fn const_unchecked_layout() {
const SIZE: usize = 0x2000;
const ALIGN: usize = 0x1000;
const LAYOUT: Layout = unsafe { Layout::from_size_align_unchecked(SIZE, ALIGN) };
const DANGLING: NonNull<u8> = LAYOUT.dangling();
assert_eq!(LAYOUT.size(), SIZE);
assert_eq!(LAYOUT.align(), ALIGN);
assert_eq!(Some(DANGLING), NonNull::new(ALIGN as *mut u8));
}