MPI_AINT_DIFF      47 ompi/include/mpif-externals.h       external MPI_AINT_ADD, MPI_AINT_DIFF
MPI_AINT_DIFF      48 ompi/include/mpif-externals.h       integer(kind=MPI_ADDRESS_KIND) MPI_AINT_ADD, MPI_AINT_DIFF
MPI_AINT_DIFF      91 ompi/mpi/fortran/mpif-h/prototypes_mpi.h PN2(MPI_Aint, MPI_Aint_diff, mpi_aint_diff, MPI_AINT_DIFF, (MPI_Aint *addr1, MPI_Aint *addr2));