Function mpi::ffi::MPI_Iexscan

pub unsafe extern fn MPI_Iexscan(sendbuf: *const c_void,
                                 recvbuf: *mut c_void,
                                 count: c_int,
                                 datatype: MPI_Datatype,
                                 op: MPI_Op,
                                 comm: MPI_Comm,
                                 request: *mut MPI_Request)
                                 -> c_int