Want correction

Hi! I'm programming a simple linked list and I don't know if my ClIterator is correct... I'm actually coding in french but I know that code is code in every language so I hope you will help me even if you don't speak french...

Here my ClIterateur class... If you have some problem, just post and I'll answer soon.

Code:

---

class ClIterateur
{
        friend class ClListe<T>;
        public :
        ClIterateur()
        : m_pNoeud(0), m_estPremierElementDeLaListe(false)
        {}

        ClIterateur(TypeNoeud* adresse, bool estPremier)       
        : m_pNoeud(adresse), m_estPremierElementDeLaListe(estPremier)
        {}

        T operator*() const
        {
        return m_pNoeud->donnee;
        }

        T& operator->() const
        {
        return &m_pNoeud->donnee;
        }

        ClIterateur& operator++()
                    {
        if (m_estPremierElementDeLaListe)       
                        {
                m_estPremierElementDeLaListe= false;
                        }
        else
                {
        m_pNoeud= m_pNoeud->pSuiv;
                }
        return *this;
        }

        ClIterateur operator++(int) // i++
        {
        ClIterateur ancienIterateur= *this;
        if (m_estPremierElementDeLaListe)
                {
                m_estPremierElementDeLaListe= false;
                }               
        else       
                {
                m_pNoeud= m_pNoeud->pSuiv;
                }
        return ancienIterateur;
        }

        bool operator==(ClIterateur p_it) const
        {
        return (m_pNoeud == p_it.m_pNoeud && m_estPremierElementDeLaListe == p_it.m_estPremierElementDeLaListe);
        }

        bool operator!=(ClIterateur p_it) const
        {
        return m_pNoeud != p_it.m_pNoeud || m_estPremierElementDeLaListe != p_it.m_estPremierElementDeLaListe;
        }

        private :
                TypeNoeud* m_pNoeud;
                bool m_estPremierElementDeLaListe;
                explicit ClIterateur(TypeNoeud* p_pNoeud)
                : m_pNoeud(p_pNoeud), m_estPremierElementDeLaListe(false)
                {}
};

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What my ClIterateur class is supposed to do : Keep a pointer on a TypeNoeud element (TypeNoeud is a special struct which have a data and a pointer on the next element) and a boolean if it's the first element of the list. But I don't think it is working correctly...

You do have a template line before that class, right?

Code:

---

template <typename T>

---

Does it compile?

Yes I have... And It's compiling...

>> But I don't think it is working correctly...

What made you think this? Posting code that caused problems can help us to help you.

It's a feeling... My iterator is supposed to keep a pointer on the preceding element, but I know how to do this... Do I have to do a loop in my constructor? Or to add ->pNext after all m_pNoeud ?

(As you can see, I'm confusing myself...)

Ok... I have a question. Maybe I find what to do, but I'm not sure and I can't compile where I am now so I risk myself...

I have this structure of header :

Code:

---

template <typename T>
class ClListe
    {
    private : struct TypeNoeud {...}

    public : class ClIterateur {...}
    }

---

In ClIterateur, if this one is friend with ClListe, Can I access to, for example, begin(), which is a function of ClListe?

Quote:

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Maybe I find what to do, but I'm not sure and I can't compile where I am now so I risk myself...

---

No more excuses! Compile code online! http://dinkumware.com/exam :p

Quote:

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In ClIterateur, if this one is friend with ClListe, Can I access to, for example, begin(), which is a function of ClListe?

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If begin() is a static function, you can; if it isn't, you'll need an object to operate on. If begin() is public then you don't need to be a friend to access it.