[Haskell-cafe] ANNOUNCE: MonadCatchIO-foreign

Michael Snoyman michael at snoyman.com
Mon May 31 01:07:56 EDT 2010


On Mon, May 31, 2010 at 3:10 AM, Antoine Latter <aslatter at gmail.com> wrote:

> Hello Haskell,
>
> I'd like to announce a very small library in two flavors.
>
> The problem I'm trying to solve is that we have some capabilities for
> writing functions which are polymorphic over monad but still use IO
> capabilities - liftIO :: (IO a -> m a) from the packages transformers
> and mtl. The packages[1,2] MonadCatchIO offer similar polymorphism for
> the exception capabilities of the IO monad.
>
> The package MonadCatchIO-foreign offers similar polymorphism for the
> following functions:
>
>  alloca, allocaBytes, allocaArray, allocaArray0 and withForeignPtr.
>
> It's a small thing, but I don't see why it should be written twice.
>
> Links on hackage:
>
> http://hackage.haskell.org/package/MonadCatchIO-mtl-foreign
> http://hackage.haskell.org/package/MonadCatchIO-transformers-foreign
>
> GitHub link:
>
> http://github.com/aslatter/MonadCatchIO-foreign
>
> Feedback, praise and adulation welcome.
>
>
Praise and adulation delivered ;). I'm a huge fan of the original
MonadCatchIO libraries, and I know I'll be using foreign in the (probably
near) future.

Thanks!
Michael
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