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1 (* ========================================================================= *) |
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2 (* MLTON SPECIFIC FUNCTIONS *) |
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3 (* Copyright (c) 2002-2006 Joe Hurd, distributed under the GNU GPL version 2 *) |
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4 (* ========================================================================= *) |
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5 |
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6 structure Portable :> Portable = |
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7 struct |
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8 |
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9 (* ------------------------------------------------------------------------- *) |
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10 (* The ML implementation. *) |
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11 (* ------------------------------------------------------------------------- *) |
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12 |
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13 val ml = "mlton"; |
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14 |
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15 (* ------------------------------------------------------------------------- *) |
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16 (* Pointer equality using the run-time system. *) |
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17 (* ------------------------------------------------------------------------- *) |
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18 |
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19 val pointerEqual = MLton.eq; |
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20 |
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21 (* ------------------------------------------------------------------------- *) |
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22 (* Timing function applications a la Mosml.time. *) |
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23 (* ------------------------------------------------------------------------- *) |
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24 |
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25 fun time f x = |
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26 let |
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27 fun p t = |
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28 let |
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29 val s = Time.fmt 3 t |
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30 in |
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31 case size (List.last (String.fields (fn x => x = #".") s)) of |
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32 3 => s |
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33 | 2 => s ^ "0" |
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34 | 1 => s ^ "00" |
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35 | _ => raise Fail "Portable.time" |
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36 end |
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37 |
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38 val c = Timer.startCPUTimer () |
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39 |
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40 val r = Timer.startRealTimer () |
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41 |
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42 fun pt () = |
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43 let |
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44 val {usr,sys} = Timer.checkCPUTimer c |
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45 val real = Timer.checkRealTimer r |
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46 in |
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47 print |
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48 ("User: " ^ p usr ^ " System: " ^ p sys ^ |
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49 " Real: " ^ p real ^ "\n") |
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50 end |
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51 |
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52 val y = f x handle e => (pt (); raise e) |
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53 |
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54 val () = pt () |
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55 in |
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56 y |
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57 end; |
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58 |
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59 end |
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60 |
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61 (* ------------------------------------------------------------------------- *) |
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62 (* Quotations a la Moscow ML. *) |
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63 (* ------------------------------------------------------------------------- *) |
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64 |
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65 datatype 'a frag = QUOTE of string | ANTIQUOTE of 'a; |