BitArray.BitArray.length
size_t length() @property const @nogc nothrow pure @safeReturns
Number of bits in the
size_t length(size_t newlen) @property pure nothrow @systemSets the amount of bits in the BitArray.
the final word of the current underlying data regardless of whether it is shared between BitArray objects. i.e. D dynamic array extension semantics are not followed.