I am trying to do simple tutorial in Visual Studio let someNumber = (2 + 2) print_int someNumber but it says print_int is undefined. printfn works. Could the book I’m using be outdated?
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I am trying to do simple tutorial in Visual Studio let someNumber = (2 + 2) print_int someNumber but it says print_int is undefined. printfn works. Could the book I’m using be outdated?
print_int is a part of the F# power pack. Adding a reference to the PowerPack (c:\program files\FSharp-1.9.6.2\bin\FSharp.PowerPack.dll on my machine) should fix the issue.
Here is a blog entry from Don that mentions the current plans for the Power Pack:
http://blogs.msdn.com/dsyme/archive/2008/12/10/fsharp-to-ship-as-part-of-visual-studio-2010.aspx