SomethingIsFishy

#include <string>
#include <iostream>

template <typename T>
class ListNode
{
    ListNode* _next = nullptr;
    T _value;
public:
    ListNode(T value) : _value(value) {}
    
    void SetNext(ListNode* node) {
        _next = node;
    }
    
    ListNode* GetNext() const { return _next; }
    
    std::string GetValue() {
        return _value;
    }
    
    class Iterator
    {
        public:
            Iterator(ListNode* ptr) : ptr_(ptr) { }
            Iterator operator++() { Iterator i = *this; ptr_ = ptr_->GetNext(); return i; }
            ListNode& operator*() { return *ptr_; }
            ListNode* operator->() { return ptr_; }
            bool operator==(const Iterator& rhs) { return ptr_ == rhs.ptr_; }
            bool operator!=(const Iterator& rhs) { return ptr_ != rhs.ptr_; }
        private:
            ListNode* ptr_;
    };
    Iterator begin() { return Iterator(this); }
    Iterator end() { return Iterator(nullptr); }
};


int main(int argc, char** argv)
{
    
    
    ListNode<std::string> node("I've");

    node.SetNext(new ListNode<std::string>("got the"));
    node.GetNext()->SetNext(new ListNode<std::string>("power"));
    
    for (auto itr : node)
        std::cout << itr.GetValue() << " ";
    std::cout << "\n";
    
    return 0;
}