{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE TypeSynonymInstances #-}
{-# LANGUAGE UndecidableInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}

--
-- Copyright (c) 2009-2011, ERICSSON AB
-- All rights reserved.
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--     * Redistributions in binary form must reproduce the above copyright
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--

module Feldspar.Core.Frontend.Ord where

import qualified Prelude

import Data.Int
import Data.Word

import Feldspar.Prelude
import Feldspar.Core.Types
import Feldspar.Core.Constructs
import Feldspar.Core.Constructs.Ord
import Feldspar.Core.Frontend.Eq

infix 4 <
infix 4 >
infix 4 <=
infix 4 >=

-- | Redefinition of the standard 'Prelude.Ord' class for Feldspar
class (Eq a, Prelude.Ord a, Prelude.Ord (Size a)) => Ord a where
  (<)  :: Data a -> Data a -> Data Bool
  (<)  =  sugarSymF LTH
  (>)  :: Data a -> Data a -> Data Bool
  (>)  =  sugarSymF GTH

  (<=) :: Data a -> Data a -> Data Bool
  (<=) =  sugarSymF LTE
  (>=) :: Data a -> Data a -> Data Bool
  (>=) =  sugarSymF GTE

  min :: Data a -> Data a -> Data a
  min = sugarSymF Min
  max :: Data a -> Data a -> Data a
  max = sugarSymF Max

instance Ord ()
instance Ord Bool
instance Ord Word8
instance Ord Int8
instance Ord Word16
instance Ord Int16
instance Ord Word32
instance Ord Int32
instance Ord Word64
instance Ord Int64
instance Ord WordN
instance Ord IntN
instance Ord Float
instance Ord Double