ATL / WTL / STL

        try
{
    //add the empty set phi first
    ListOfSubsets().push_back("{}");

    //create the iterator
    list<char*>::iterator pos;

    //add the set of elements singly
    for(pos = ListOfElements().begin(); pos != ListOfElements().end(); ++pos)
    {
        cout << *pos << endl;
    }
}
catch(exception ex)
{
    cout << "an error has occurred: " << endl;
    cout << ex.what() << endl;

    return;
}

private:
	list<char*> _ListOfElements;
	list<char*> _ListOfSubsets;
	
protected:
	//getter & setter function

	//ListOfElements
	list<char*> ListOfElements(void) const	//constant function [Read only]
	{
		return _ListOfElements;
	}
	void set_ListOfElements(list<char*> listOfElements)
	{
		_ListOfElements = listOfElements;
	}


	//ListOfSubsets
	list<char*> ListOfSubsets(void) const
	{
		return _ListOfSubsets;
	}
	void set_ListOfSubsets(list<char*> listOfSubsets)
	{
		_ListOfSubsets = listOfSubsets;
	}

Use of two sequential underscore characters ( __ ) at the beginning of an identifier, or a single leading underscore followed by a capital letter, is reserved for C++ implementations in all scopes. You should avoid using one leading underscore followed by a lowercase letter for names with file scope because of possible conflicts with current or future reserved identifiers.

Florin Crisan wrote:

const list & ListOfElements(void) const

list ListOfElements(void) const

Mustafa Ismail Mustafa wrote:

But I still don't understand, why a reference has to be returned?

Like here:

Florin Crisan wrote:
const list & ListOfElements(void) const



instead of a plain

list ListOfElements(void) const

?

Mustafa Ismail Mustafa wrote:

has anyone ever encountered this error while trying to include ?

long index = 0;
csaConType.PutElement(&index, bstrName.Copy());
index = 1;
csaConType.PutElement(&index, bstrName1.Copy());
index = 2;
csaConType.PutElement(&index, bstrName2.Copy());
index = 3;
csaConType.PutElement(&index, bstrName3.Copy());