BitArray.opCast
inout(void)[] opCast(T : const void[])() inout @nogc pure nothrowConvert to void[].
inout(size_t)[] opCast(T : const size_t[])() inout @nogc pure nothrowConvert to size_t[].
inout(void)[] opCast(T : const void[])() inout @nogc pure nothrowConvert to void[].
inout(size_t)[] opCast(T : const size_t[])() inout @nogc pure nothrowConvert to size_t[].