Function mpi::ffi::PMPI_Get_accumulate

pub unsafe extern fn PMPI_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