types: Add Padding<T>::uninit()

It allows to uninitialize padding areas in const contextes.

Author: 3v1n0

src/types.rs

@@ -22,6 +22,18 @@ impl<T: Copy> Default for Padding<T> {
  }
 }
 
+impl<T: Copy> Padding<T> {
+ /// Const constructor for uninitialized padding in const contexts.
+ // FIXME: Change this into zeroed() and use MaybeUninit::zeroed()
+ // when we depend on rustc 1.75.0.
+ #[allow(unused)]
+ pub(crate) const fn uninit() -> Self {
+ // We can still safely use uninit here, since padding are is something
+ // that can are not meant to be read or written anyways.
+ Self(MaybeUninit::uninit())
+ }
+}
+
 impl<T: Copy> fmt::Debug for Padding<T> {
  fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
  // Taken frmo `MaybeUninit`'s debug implementation