{-# LANGUAGE FlexibleInstances, FlexibleContexts, TypeFamilies, MultiParamTypeClasses, OverlappingInstances, IncoherentInstances #-} module HROOT.Hist.TH2F.Cast where import Foreign.Ptr import FFICXX.Runtime.Cast import System.IO.Unsafe import HROOT.Hist.TH2F.RawType import HROOT.Hist.TH2F.Interface instance (ITH2F a, FPtr a) => Castable a (Ptr RawTH2F) where cast x f = f (castPtr (get_fptr x)) uncast x f = f (cast_fptr_to_obj (castPtr x)) instance Castable TH2F (Ptr RawTH2F) where cast x f = f (castPtr (get_fptr x)) uncast x f = f (cast_fptr_to_obj (castPtr x))