Re: std::list<T>::iterator

From:
Victor Bazarov <v.Abazarov@comAcast.net>
Newsgroups:
comp.lang.c++
Date:
Thu, 22 May 2008 13:13:20 -0400
Message-ID:
<g149jh$ot6$1@news.datemas.de>
Isliguezze wrote:

Does anybody know how to make a wrapper for that iterator?


What for?

 > Here's my

wrapper class for std::list:

template <class T> class List {
private:
    std::list<T> *lst;
public:
    List() { lst = new std::list<T>(); }
    List(const List<T> &rhs) { lst = new std::list<T>(*rhs.lst); }


The assignment op is missing (see Rule of Three).

    List(int n, const T& value) { lst = new std::list<T>(n, value); }
    ~List() { delete lst; }

    void push_back(const T& value) { lst->push_back(value); }
    void push_front(const T& value) { lst->push_front(value); }
    void pop_back() { lst->pop_back; }
    void pop_front() { lst->pop_front; }
    void remove(const T& value) { lst->remove(value); }
};


This wrapper seems awfully thin and doesn't provide any additional
functionality beyond what's already available in std::list. What do you
have in mind when creating a wrapper like this? Perhaps if you could
explain your design goals it would be easier to suggest a solution for
the iterator...

V
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