Function mpi::ffi::MPI_Igather

pub unsafe extern fn MPI_Igather(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,
                                 request: *mut MPI_Request)
                                 -> c_int