{-# OPTIONS_HADDOCK hide, prune, ignore-exports #-} module Data.Number.Flint.Groups.Qfb.Instances where import System.IO.Unsafe import Foreign.C.String import Foreign.Marshal.Alloc ( free ) import Data.Number.Flint.Groups.Qfb instance Show Qfb where show :: Qfb -> String show Qfb x = forall a. IO a -> a unsafePerformIO forall a b. (a -> b) -> a -> b $ do (Qfb _, CString cs) <- forall {a}. Qfb -> (Ptr CQfb -> IO a) -> IO (Qfb, a) withQfb Qfb x Ptr CQfb -> IO CString qfb_get_str String s <- CString -> IO String peekCString CString cs forall a. Ptr a -> IO () free CString cs forall (m :: * -> *) a. Monad m => a -> m a return String s