We show that most interior-point algorithms for linear programming gen
erate a solution sequence in which every limit point satisfies the str
ict complementarity condition. These algorithms include all path-follo
wing algorithms and some potential reduction algorithms. The result al
so holds for the monotone complementarity problem if a strict compleme
ntarity solution exists. In general, the limit point is a solution tha
t maximizes the number of its nonzero components among all solutions.