typedef int PK_check_top_geo_t; This data type is used to select the level of checking of consistency between geometry and topology. It has four values: PK_check_top_geo_no_c don't check geometry/topology consistency PK_check_top_geo_edge_c just check curve/edge consistency PK_check_top_geo_face_c just check surface/face consistency PK_check_top_geo_yes_c check both curve/edge and surface/face consistency