CAtlList::GetPrev
Call this method to return the previous element from the list.
E& GetPrev(
POSITION& pos
) throw( );
const E& GetPrev(
POSITION& pos
) const throw( );
Parameters
- pos
A POSITION value, returned by a previous call to GetPrev, CAtlList::GetTailPosition, or other CAtlList method.
Return Value
If the list is const, GetPrev returns a copy of an element of the list. This allows the method to be used only on the right side of an assignment statement and protects the list from modification.
If the list is not const, GetPrev returns a reference to an element of the list. This allows the method to be used on either side of an assignment statement and thus allows the list entries to be modified.
Remarks
The POSITION counter, pos, is updated to point to the previous element in the list, or NULL if there are no more elements. In debug builds, an assertion failure will occur if pos is equal to NULL.
Example
See the example for CAtlList::GetTailPosition.
Requirements
Header: atlcoll.h