author | blanchet |
Wed, 04 Mar 2009 10:45:52 +0100 | |
changeset 30240 | 5b25fee0362c |
parent 30187 | b92b3375e919 |
child 32740 | 9dd0a2f83429 |
permissions | -rw-r--r-- |
1 structure Report =
2 struct
4 local
6 val report_depth = ref 0
7 fun space n = if n <= 0 then "" else (space (n-1))^" "
8 fun report_space () = space (!report_depth)
10 in
12 fun timeit f =
13 let
14 val t1 = start_timing ()
15 val x = f ()
16 val t2 = #message (end_timing t1)
17 val _ = writeln ((report_space ()) ^ "--> "^t2)
18 in
19 x
20 end
22 fun report s f =
23 let
24 val _ = writeln ((report_space ())^s)
25 val _ = report_depth := !report_depth + 1
26 val x = timeit f
27 val _ = report_depth := !report_depth - 1
28 in
29 x
30 end
32 end
33 end