CAtlList::GetHeadPosition
Call this method to obtain the position of the head of the list.
POSITION GetHeadPosition( ) const throw( );
Return Value
Returns the POSITION value corresponding to the element at the head of the list.
Remarks
If the list is empty, the value returned is NULL.
Example
// Define the integer list
CAtlList<int> myList;
int i;
// Populate the list
for (i = 0; i < 100; i++)
{
myList.AddTail(i);
}
// Get the starting position value
POSITION myPos = myList.GetHeadPosition();
// Iterate through the entire list
i = 0;
int j;
do {
j = myList.GetNext(myPos);
ATLASSERT(i == j);
i++;
} while (myPos != NULL);
Requirements
Header: atlcoll.h