Throwing an exception Imaging our previous Fibonacci iterator example lass FIbonacci Iterator public CFibonacci Iterator(int idx): m idx(idx-1) bool operator=-(const CFibonacci Iterator&) const bool operator!= const CFibonacci Iterator&)const int operator Const FIbonacci Iterator& operator++O CFibonacci Iterator operator++(int private void check integrity int m iIdxThrowing an exception ◼ Imaging our previous Fibonacci_Iterator example class CFibonacci_Iterator { public: CFibonacci_Iterator(int idx) : m_iIdx(idx - 1) {}; bool operator= =(const CFibonacci_Iterator&) const; bool operator!=(const CFibonacci_Iterator&) const; int operator*() const; CFibonacci_Iterator& operator++(); CFibonacci_Iterator operator++( int ); private: void check_integrity(); int m_iIdx; }