annotate demo/tcSum.ur @ 632:6c4643880df5
Demos compile again, with manual folders
| author |
Adam Chlipala <adamc@hcoop.net> |
| date |
Tue, 24 Feb 2009 15:12:13 -0500 |
| parents |
e0e9e9eca1cb |
| children |
03ab853c8e4b |
| rev |
line source |
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adamc@632
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1 fun sum (t ::: Type) (_ : num t) (fs ::: {Unit}) (fl : folder fs) (x : $(mapUT t fs)) =
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adamc@417
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2 foldUR [t] [fn _ => t]
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adamc@417
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3 (fn (nm :: Name) (rest :: {Unit}) [[nm] ~ rest] n acc => n + acc)
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adamc@632
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4 zero [fs] fl x
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5
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adamc@417
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6 fun main () = return <xml><body>
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7 {[sum (Folder.cons [#A] [()] ! (Folder.cons [#B] [()] ! Folder.nil)) {A = 0, B = 1}]}<br/>
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8 {[sum (Folder.cons [#D] [()] ! (Folder.cons [#C] [()] ! (Folder.cons [#E] [()] ! Folder.nil))) {C = 2.1, D = 3.2, E = 4.3}]}
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adamc@417
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9 </body></xml>
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