module Data.Number.Flint.Support.D.Mat.Instances where

import System.IO.Unsafe
import Foreign.C.String
import Foreign.Marshal.Alloc ( free )

import Data.Number.Flint.Support.D.Mat

instance Show DMat where
  show :: DMat -> String
show DMat
x = IO String -> String
forall a. IO a -> a
unsafePerformIO (IO String -> String) -> IO String -> String
forall a b. (a -> b) -> a -> b
$ do
    (DMat
_, CString
cs) <- DMat -> (Ptr CDMat -> IO CString) -> IO (DMat, CString)
forall {a}. DMat -> (Ptr CDMat -> IO a) -> IO (DMat, a)
withDMat DMat
x Ptr CDMat -> IO CString
d_mat_get_str
    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