Function konst::ptr::as_ref

pub const unsafe fn as_ref<'a, T: ?Sized>(ptr: *const T) -> Option<&'a T>

This is supported on crate feature rust_1_56 only.

Const equivalent of <*const>::as_ref

Safety

This function has the same safety requirements as <*const>::as_ref

Example

use konst::ptr;

use core::ptr::null;

const NONE: Option<&u8> = unsafe{ ptr::as_ref(null()) };
const SOME: Option<&u8> = unsafe{ ptr::as_ref(&100) };

assert_eq!(NONE, None);
assert_eq!(SOME, Some(&100));