author | bulwahn |
Mon, 11 May 2009 09:18:42 +0200 | |
changeset 31106 | 9a1178204dc0 |
parent 30187 | b92b3375e919 |
child 32740 | 9dd0a2f83429 |
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 = #message (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