Function bitvec::ptr::null

pub fn null<T, O>() -> BitPtr<Const, T, O>where
    T: BitStore,
    O: BitOrder,

Bit-Pointer Sentinel Value

BitPtr does not permit actual null pointers. Instead, it uses the canonical dangling address as a sentinel for uninitialized, useless, locations.

You should use Option<BitPtr> if you need to track nullability.

Original

ptr::null