ompi_mpi_info_null_addr 56 ompi/info/info.c ompi_predefined_info_t *ompi_mpi_info_null_addr = &ompi_mpi_info_null; ompi_mpi_info_null_addr 76 ompi/info/info.h OMPI_DECLSPEC extern ompi_predefined_info_t *ompi_mpi_info_null_addr;