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Call this method to get the value of an element stored in the tree and advance the position to the next element.

const V& GetNextValue(
   POSITION& pos 
) const throw( );
V& GetNextValue(
   POSITION& pos 
) throw( );



The position counter, returned by a previous call to methods such as CRBTree::GetHeadPosition or CRBTree::FindFirstKeyAfter.

Returns a reference to the next value in the tree.

Updates the current position counter, pos. If there are no more entries in the tree, the position counter is set to NULL.

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