Function mpi::ffi::PMPI_Gather

pub unsafe extern fn PMPI_Gather(sendbuf: *const c_void,
                                 sendcount: c_int,
                                 sendtype: MPI_Datatype,
                                 recvbuf: *mut c_void,
                                 recvcount: c_int,
                                 recvtype: MPI_Datatype,
                                 root: c_int,
                                 comm: MPI_Comm)
                                 -> c_int