module Data.Number.Flint.Acb.Instances where import System.IO.Unsafe import Foreign.C.String import Foreign.Marshal.Alloc ( free ) import Data.Number.Flint.Arb import Data.Number.Flint.Acb instance Show Acb where show :: Acb -> String show Acb x = IO String -> String forall a. IO a -> a unsafePerformIO (IO String -> String) -> IO String -> String forall a b. (a -> b) -> a -> b $ do (Acb _, CString cs) <- Acb -> (Ptr CAcb -> IO CString) -> IO (Acb, CString) forall {a}. Acb -> (Ptr CAcb -> IO a) -> IO (Acb, a) withAcb Acb x ((Ptr CAcb -> IO CString) -> IO (Acb, CString)) -> (Ptr CAcb -> IO CString) -> IO (Acb, CString) forall a b. (a -> b) -> a -> b $ \Ptr CAcb x -> Ptr CAcb -> CLong -> ArbStrOption -> IO CString acb_get_strn Ptr CAcb x CLong 16 ArbStrOption arb_str_no_radius String s <- CString -> IO String peekCString CString cs CString -> IO () forall a. Ptr a -> IO () free CString cs String -> IO String forall a. a -> IO a forall (m :: * -> *) a. Monad m => a -> m a return String s