Iterating the std::list through a const_iterator

c++, iterator, stl

Solution

You seem to have 'encapsulated' the list without exposing a way to access the `end()` method of the list which you need for your iteration to know when to finish. If you add a method that returns `_list.end()` to your `list_return` class (I've called it get_list_end) you could do something like this:

for (std::list<std::string>::const_iterator iter = lr.get_list();
        iter != lr.get_list_end();
        ++iter)
{
    //... 
}

Problem

is it possible to iterate through until the end of list in main() function using the const_iterator? I tried using iter->end() but i can't figure it out. ``` #include <list> #include <string> using std::list; using std::string; class list_return { public: list <string>::const_iterator get_list() { _list.push_back("1"); _list.push_back("2"); _list.push_back("3"); return _list.begin(); } private: list <string> _list; }; int main() { list_return lr; list <string>::const_iterator iter = lr.get_list(); //here, increment the iterator until end of list return 0; } ```

Original source