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| module Sample | |
| let counter = | |
| let makeCounter () = | |
| let i = ref 0 | |
| fun () -> | |
| i := !i + 1 | |
| !i | |
| makeCounter () | |
| [<EntryPoint>] | |
| let main _ = | |
| printfn "%d" <| counter () //1 | |
| printfn "%d" <| counter () //2 | |
| printfn "%d" <| counter () //3 | |
| 0 |
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