Commit | Line | Data |
---|---|---|
7f918cf1 CE |
1 | structure Weak = MLton.Weak |
2 | ||
3 | val x = (13, ref 5) | |
4 | val wx = Weak.new x | |
5 | fun isAlive () = isSome (Weak.get wx) | |
6 | val _ = MLton.GC.collect () | |
7 | val _ = print (Bool.toString (isAlive ()) ^ "\n") | |
8 | ||
9 | (* | |
10 | fun sum (x : int * (int list ref vector * int * int) ref) = | |
11 | #1 x + | |
12 | #2 (! (#2 x)) + | |
13 | #3 (! (#2 x)) + | |
14 | Vector.foldr (fn (lr,s) => List.foldr (op +) s (!lr)) 0 (#1 (! (#2 x))) | |
15 | ||
16 | val x = (13, ref (Vector.tabulate (10, fn n => ref (List.tabulate (n, fn i => i))), | |
17 | 4, | |
18 | 5)) | |
19 | val wx = Weak.new x | |
20 | fun isAlive () = isSome (Weak.get wx) | |
21 | val _ = MLton.GC.collect () | |
22 | val _ = print (Bool.toString (isAlive ()) ^ "\n") | |
23 | val s1 = sum x | |
24 | *) |