[Haskell-cafe] Regarding Haskell FFI for C/C++ (Passing of String)
yves.pares at gmail.com
Thu Mar 22 15:17:07 CET 2012
This joins the question I asked two days ago here. (See
Hope that helps.
Le 22 mars 2012 15:10, rajendra prasad <rajendradprasad at gmail.com> a écrit :
> I have just started learning Haskell FFI. I am trying to send a string
> from hastell to a C function. For this, I am required to convert the
> haskell string to byte string. I have two methods to achieve this task.
> Both are listed below:
> 1) import Foreign.C.String
> let arg1 = map castCharToCChar "Hello" :: [CChar]
> 2) import qualified Data.ByteString.Char8 as B
> f = B.pack "Hello"
> I just wanted to know the optimal way to achieve this task. Please suggest
> the optimal way of doing this. If there is any other way, please share it.
> Also, please suggest me any good tutorial to start with Haskell FFI for
> Thank you very much.
> Haskell-Cafe mailing list
> Haskell-Cafe at haskell.org
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