Function mpi::ffi::MPI_Get_accumulate

pub unsafe extern fn MPI_Get_accumulate(origin_addr: *const c_void,
                                        origin_count: c_int,
                                        origin_datatype: MPI_Datatype,
                                        result_addr: *mut c_void,
                                        result_count: c_int,
                                        result_datatype: MPI_Datatype,
                                        target_rank: c_int,
                                        target_disp: MPI_Aint,
                                        target_count: c_int,
                                        target_datatype: MPI_Datatype,
                                        op: MPI_Op,
                                        win: MPI_Win)
                                        -> c_int