author | wenzelm |
Fri, 15 Aug 2008 15:50:52 +0200 | |
changeset 27885 | 76b51cd0a37c |
parent 25218 | fcf0f50e478c |
child 30187 | b92b3375e919 |
permissions | -rw-r--r-- |
structure Report = struct local val report_depth = ref 0 fun space n = if n <= 0 then "" else (space (n-1))^" " fun report_space () = space (!report_depth) in fun timeit f = let val t1 = start_timing () val x = f () val t2 = end_timing t1 val _ = writeln ((report_space ()) ^ "--> "^t2) in x end fun report s f = let val _ = writeln ((report_space ())^s) val _ = report_depth := !report_depth + 1 val x = timeit f val _ = report_depth := !report_depth - 1 in x end end end