Is there ASCII equivalent of CStringArray?

[zspirit]

I end up resolving this issue by using just unicode version of CStringArray after all. I liked the CStringArrayUtils namespace approach to extend the function but I am still not sure if I would prefer this over deriving from the class for any particular reason!? Your approach gives me a good insight but at the same time is more complex even if we remove the templates. For example my difference function look like this and I like the fact it is invoked just by - operator so the main code looks clean.

CStringArrayEx CStringArrayEx::operator - (const CStringArrayEx & rhs)
{
	CStringArrayEx diffList; // difference list


	// number of items in reference array (right hand side)
	int rhsItemCount = rhs.GetCount();

	CString strItem;

	for (int i = 0; i < rhsItemCount; i++)
	{
		strItem = rhs.GetAt(i);

		// if rhs string item is not in the source array, add it to the difference list
		if ( !FindNoCase( strItem ) )
			diffList.Add( strItem );
	}

	return diffList;
}