8 lines
232 B
Text
8 lines
232 B
Text
:- pred progress(int::in, int::in, int::out, int::out) is det.
|
|
progress(Past, Future, At, Total) :-
|
|
At = Past + 1,
|
|
Total = Past + Future.
|
|
|
|
progress(Past, Future, At, Total) :-
|
|
Past + Future = Total,
|
|
Past + 1 = At.
|