CAtlList::SwapElements

Call this method to swap elements in the list.

void SwapElements( 
   POSITION pos1, 
   POSITION pos2  
) throw( );

Parameters

• pos1
  The first POSITION value.

• pos2
  The second POSITION value.

Remarks

Swaps the elements at the two positions specified. In debug builds, an assertion failure will occur if either position value is equal to NULL.

Example

// Define the integer list
CAtlList<int> myList;

// Populate the list 
for (int i = 0; i < 100; i++)
{
   myList.AddHead(i);
}

// Order is: 99, 98, 97, 96...
ATLASSERT(myList.GetHead() == 99);
ATLASSERT(myList.GetTail() == 0);

// Perform a crude bubble sort 
for (int j = 0; j < 100; j++)
{
   for(int i = 0; i < 99; i++)
   {
      if (myList.GetAt(myList.FindIndex(i)) > 
         myList.GetAt(myList.FindIndex(i+1)))
      {
         myList.SwapElements(myList.FindIndex(i), myList.FindIndex(i+1));
      }
   }
}

// Order is: 0, 1, 2, 3...
ATLASSERT(myList.GetHead() == 0);
ATLASSERT(myList.GetTail() == 99);   

Requirements

Header: atlcoll.h

See Also

Reference

CAtlList Class

CAtlList::MoveToHead

CAtlList::MoveToTail