typedef std::pair< bool, const SMDS_MeshNode* > TIsSharpAndMedium;
typedef NCollection_DataMap< SMESH_TLink, TIsSharpAndMedium, SMESH_TLink > TLinkSharpMap;
typedef std::pair< bool, const SMDS_MeshNode* > TIsSharpAndMedium;
typedef NCollection_DataMap< SMESH_TLink, TIsSharpAndMedium, SMESH_TLink > TLinkSharpMap;