1526     static immutable uint bitsPerWord = size_t.sizeof * 8;  variable
1692             ? cast(size_t) bitsPerWord * _store._backend.capacity  in capacity()
1711         _store._backend.reserve(to!size_t((e + bitsPerWord - 1) / bitsPerWord));  in reserve()
1771         return cast(bool)(data.back & (cast(size_t) 1 << ((_store._length - 1) % bitsPerWord)));  in back()
1780             data.back |= (cast(size_t) 1 << ((_store._length - 1) % bitsPerWord));  in back()
1785                 ~(cast(size_t) 1 << ((_store._length - 1) % bitsPerWord));  in back()
1798         auto div = cast(size_t) (i / bitsPerWord);  in opIndex()
1799         auto rem = i % bitsPerWord;  in opIndex()
1807         auto div = cast(size_t) (i / bitsPerWord);  in opIndexAssign()
1808         auto rem = i % bitsPerWord;  in opIndexAssign()
1817         auto div = cast(size_t) (i / bitsPerWord);  in opIndexOpAssign()
1818         auto rem = i % bitsPerWord;  in opIndexOpAssign()
1899             to!size_t((newLength + bitsPerWord - 1) / bitsPerWord);  in length()
1941         auto rem = _store._length % bitsPerWord;
2006         if (_store._length % bitsPerWord)  in removeBack()