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Creating F# DLL for C# project usage <- HELP!!!
f#c#

Hello!

I need help on a project:

I need to create some methods in F#, save them as DLL and use them from C#.

The problem is that I don't have a clue how to do it...

If somebody would please explain on example how to do it, I'd be much abliged.

Example can be as simple as F# method that excepts two ints and returns their SUM. from C# I only need the line in which the method is called and passed arguments.

Thx in advance!

.

this is whatlittle F# I've done so far:

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(*Sort*)
let FSSortList L = List.stable_sort compare;
(*Invert*)
let FSInvertList L =  List.rev L;
(*Add Non-sorted*)
let FSAddNonSortedElement E L = List.rev (E :: (List.rev L));
(*Add Sorted*)
let FSAddSortedElement E L = E :: L |> FSSortList;

In C# I have: 

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List<object> Lx   //with some data - strings

When I try linking two, I can't. I don't know what to give him...

I'd like stg like:

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Lx = FSSortList(Lx);

and I know It's stg like:

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Lx = REFERENCE.FSSort<SOMETHING>(SOMETHING2);

but what is SOMETHING & SOMETHING2???

By on 5/25/2008 12:48 PM ()

Hi morrak,

In orderto make your F# code apper properly to C#, you should

1. Wrap the mulitple parameters in a parenthesis

let FSAddNonSortedElement E L -> let FSAddNonSortedElement (E, L)

2. Use.NET types. In this case, use ResizeArray instead of F# List. Resize arrays map to System.Collections.Generic.List (which is probably what your C# code will pass and expect as a return value) while F# list belong Microsoft.FSharp.Collections.List

FSAddNonSortedElement can be rewritten to:

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let FSAddNonSortedElement2 (E, L) = 

  let temp =  ResizeArray.append ( E ) (ResizeArray.rev L)

  ResizeArray.rev temp
By on 5/25/2008 8:53 PM ()

thx man, it rocks now with ArrayList transition...

who'd know that C#.List =/= F#.List

Thx again!

By on 5/26/2008 1:37 AM ()

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