Float.chs

-- Copyright (C) 2009 John Millikin <jmillikin@gmail.com>
-- 
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- any later version.
-- 
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-- GNU General Public License for more details.
-- 
-- You should have received a copy of the GNU General Public License
-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
-- 
{-# LANGUAGE ForeignFunctionInterface #-}
module CPython.Types.Float
	( Float
	, floatType
	, toFloat
	, fromFloat
	) where
import Prelude hiding (Float)
import CPython.Internal

#include <hscpython-shim.h>

newtype Float = Float (ForeignPtr Float)

instance Object Float where
	toObject (Float x) = SomeObject x
	fromForeignPtr = Float

instance Concrete Float where
	concreteType _ = floatType

{# fun pure hscpython_PyFloat_Type as floatType
	{} -> `Type' peekStaticObject* #}

{# fun PyFloat_FromDouble as toFloat
	{ realToFrac `Double'
	} -> `Float' stealObject* #}

{# fun PyFloat_AsDouble as fromFloat
	{ withObject* `Float'
	} -> `Double' realToFrac #}