Created
June 23, 2015 18:09
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| // C# | |
| // public class Test { | |
| // public FSharpSet<int> SetNull { get; set; } | |
| // } | |
| let s : Set<int> = (new Test()).SetNull | |
| //or let s : Set<int> = Unchecked.defaultof<Set<int>> | |
| //The type 'Set<int>' does not have 'null' as a proper value | |
| //if s <> null then s |> Set.isEmpty |> ignore | |
| //nre | |
| s |> Set.isEmpty |> ignore | |
| //correct | |
| if Unchecked.defaultof<Set<int>> <> s then s |> Set.isEmpty |> ignore | |
| if obj.ReferenceEquals (s, null) |> not then s |> Set.isEmpty |> ignore | |
| printfn "%A" argv |
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