{-# htermination (toEnumChar :: MyInt  ->  Char) #-} 
import qualified Prelude 
data MyBool = MyTrue | MyFalse 
data List a = Cons a (List a) | Nil 
data Char = Char MyInt ;

data MyInt = Pos Nat  | Neg Nat ;

data Nat = Succ Nat | Zero ;

primIntToChar :: MyInt  ->  Char;
primIntToChar x = Char x;

toEnumChar :: MyInt  ->  Char
toEnumChar = primIntToChar;