/* Boost interval/hw_rounding.hpp template implementation file

 *

 * Copyright 2002 Hervé Brönnimann, Guillaume Melquiond, Sylvain Pion

 * Copyright 2005 Guillaume Melquiond

 *

 * Distributed under the Boost Software License, Version 1.0.

 * (See accompanying file LICENSE_1_0.txt or

 * copy at http://www.boost.org/LICENSE_1_0.txt)

 */



#ifndef BOOST_NUMERIC_INTERVAL_HW_ROUNDING_HPP

#define BOOST_NUMERIC_INTERVAL_HW_ROUNDING_HPP



#include <boost/numeric/interval/rounding.hpp>

#include <boost/numeric/interval/rounded_arith.hpp>



#define BOOST_NUMERIC_INTERVAL_NO_HARDWARE



// define appropriate specialization of rounding_control for built-in types

#if defined(__x86_64__) && defined(__USE_ISOC99)

#  include <boost/numeric/interval/detail/c99_rounding_control.hpp>

#elif defined(__i386__) || defined(_M_IX86) || defined(__BORLANDC__) || defined(_M_X64)

#  include <boost/numeric/interval/detail/x86_rounding_control.hpp>

#elif defined(powerpc) || defined(__powerpc__) || defined(__ppc__)

#  include <boost/numeric/interval/detail/ppc_rounding_control.hpp>

#elif defined(sparc) || defined(__sparc__)

#  include <boost/numeric/interval/detail/sparc_rounding_control.hpp>

#elif defined(alpha) || defined(__alpha__)

#  include <boost/numeric/interval/detail/alpha_rounding_control.hpp>

#elif defined(ia64) || defined(__ia64) || defined(__ia64__)

#  include <boost/numeric/interval/detail/ia64_rounding_control.hpp>

#endif



#if defined(BOOST_NUMERIC_INTERVAL_NO_HARDWARE) && (defined(__USE_ISOC99) || defined(__MSL__))

#  include <boost/numeric/interval/detail/c99_rounding_control.hpp>

#endif



#if defined(BOOST_NUMERIC_INTERVAL_NO_HARDWARE)

#  undef BOOST_NUMERIC_INTERVAL_NO_HARDWARE

#  error Boost.Numeric.Interval: Please specify rounding control mechanism.

#endif



namespace boost {

namespace numeric {

namespace interval_lib {



/*

 * Three specializations of rounded_math<T>

 */



template<>

struct rounded_math<float>

  : save_state<rounded_arith_opp<float> >

{};



template<>

struct rounded_math<double>

  : save_state<rounded_arith_opp<double> >

{};



template<>

struct rounded_math<long double>

  : save_state<rounded_arith_opp<long double> >

{};



} // namespace interval_lib

} // namespace numeric

} // namespace boost



#endif // BOOST_NUMERIC_INTERVAL_HW_ROUNDING_HPP

