CODEWITHSUNDEEP
c++iterator
lawgik
lawgik

Reputation: 87

How to declare iterator variable as private member variable?

Say I want to declare some private class member variables in a class for a doubly linked list and am trying to do something like:

DoublyLinkedList<ShippingStatus> package;
DoublyLinkedListIterator<ShippingStatus> ship(&package);

I realize that the second line is not possible, but is there any way to declare the ship variable by passing in the linked list values as reference? I have done the second line within other functions successfully, but this would mean ship would be reset each time these functions are called, and I want the position of my iterator saved "globally" as the program runs. This is what the constructor for the iterator class looks like

DoublyLinkedListIterator(DoublyLinkedList<ELT>* list) {
    assert(nullptr != list);
    _location = list->_header->next();
}

I can provide any further functions if needed.

Upvotes: 1

Views: 229

Answers (1)

Killzone Kid
Killzone Kid

Reputation: 6240

Perhaps you could use member initializer list:

template <typename ShippingStatus>
class MyClass
{
    DoublyLinkedList<ShippingStatus> package;
    DoublyLinkedListIterator<ShippingStatus> ship;
public:
    MyClass(DoublyLinkedList<ShippingStatus> package) : package{ package }, ship{ &(this->package) } {}
};

Upvotes: 1

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