(task_name0 : iterator_vector) -> (task_name1 : iterator_vector
e.g.
// task1<i,j> -> task2<j,i>
(task1 : i, j) -> (task2 : j, i)
// task1<i-1, 0>, ,task1<i-1, N > - > task1<i, 0>, ,task1<i, N>
(task1 : i-1, 0..N) -> (task1 : i, 0..N)
Listing 11