OMPI_CXX_SUPPORTS_2D_CONST_CAST  102 ompi/mpi/cxx/group_inln.h #if OMPI_CXX_SUPPORTS_2D_CONST_CAST
OMPI_CXX_SUPPORTS_2D_CONST_CAST  116 ompi/mpi/cxx/group_inln.h #if OMPI_CXX_SUPPORTS_2D_CONST_CAST