bool m_OptimizerInitialized;
InternalOptimizerType * m_VnlOptimizer;
-#if ITK_VERSION_MAJOR > 3
mutable std::ostringstream m_StopConditionDescription;
-#else
- mutable itk::OStringStream m_StopConditionDescription;
-#endif
BoundValueType m_LowerBound;
BoundValueType m_UpperBound;
BoundSelectionType m_BoundSelection;