/// \brief Creates an iterator.

       /// \brief Creates an iterator.

       ///

       ///

       /// Creates an iterator. It iterates on the 

       /// Creates an iterator. It iterates on the 

       /// keys which mapped to true.

       /// keys which mapped to true.

       TrueIt(const IterableBoolMap& _map) 

       TrueIt(const IterableBoolMap& _map) 

         : Parent(_map.sep > 0 ? _map.array[_map.sep - 1] : INVALID), 

         : Parent(_map.sep > 0 ? _map.array[_map.sep - 1] : INVALID), 

           map(&_map) {}

           map(&_map) {}

       /// \brief Invalid constructor \& conversion.

       /// \brief Invalid constructor \& conversion.

       /// \brief Creates an iterator.

       /// \brief Creates an iterator.

       ///

       ///

       /// Creates an iterator. It iterates on the 

       /// Creates an iterator. It iterates on the 

       /// keys which mapped to false.

       /// keys which mapped to false.

       FalseIt(const IterableBoolMap& _map) 

       FalseIt(const IterableBoolMap& _map) 

         : Parent(_map.sep < (int)_map.array.size() ? 

         : Parent(_map.sep < (int)_map.array.size() ? 

                  _map.array.back() : INVALID), map(&_map) {}

                  _map.array.back() : INVALID), map(&_map) {}

       /// \brief Invalid constructor \& conversion.

       /// \brief Invalid constructor \& conversion.

       /// \brief Creates an iterator.

       /// \brief Creates an iterator.

       ///

       ///

       /// Creates an iterator. It iterates on the 

       /// Creates an iterator. It iterates on the 

       /// keys which mapped to false.

       /// keys which mapped to false.

       /// \param value Which elements should be iterated.

       /// \param value Which elements should be iterated.

       ItemIt(const IterableBoolMap& _map, bool value) 

       ItemIt(const IterableBoolMap& _map, bool value) 

         : Parent(value ? (_map.sep > 0 ? _map.array[_map.sep - 1] : INVALID) :

         : Parent(value ? (_map.sep > 0 ? _map.array[_map.sep - 1] : INVALID) :

                  (_map.sep < (int)_map.array.size() ? 

                  (_map.sep < (int)_map.array.size() ? 

                   _map.array.back() : INVALID)), map(&_map) {}

                   _map.array.back() : INVALID)), map(&_map) {}