impl<T: ?Sized> *const T {
/// Returns `true` if the pointer is null.
///
+ /// Note that unsized types have many possible null pointers, as only the
+ /// raw data pointer is considered, not their length, vtable, etc.
+ /// Therefore, two pointers that are null may still not compare equal to
+ /// each other.
+ ///
/// # Examples
///
/// Basic usage:
impl<T: ?Sized> *mut T {
/// Returns `true` if the pointer is null.
///
+ /// Note that unsized types have many possible null pointers, as only the
+ /// raw data pointer is considered, not their length, vtable, etc.
+ /// Therefore, two pointers that are null may still not compare equal to
+ /// each other.
+ ///
/// # Examples
///
/// Basic usage: