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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\numeric\interval\detail\c99_rounding_control.hpp

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/* Boost interval/detail/c99_rounding_control.hpp file
 *
 * Copyright 2000 Jens Maurer
 * Copyright 2002 Herv� Br�nnimann, Guillaume Melquiond, Sylvain Pion
 *
 * 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_DETAIL_C99_ROUNDING_CONTROL_HPP
#define BOOST_NUMERIC_INTERVAL_DETAIL_C99_ROUNDING_CONTROL_HPP

#include <boost/numeric/interval/detail/c99sub_rounding_control.hpp>

namespace boost {
namespace numeric {
namespace interval_lib {
namespace detail {

struct c99_rounding_control: c99_rounding
{
  template<class T>
  static T force_rounding(const T& r) { volatile T r_ = r; return r_; }
};

} // namespace detail

template<>
struct rounding_control<float>:
  detail::c99_rounding_control { };

template<>
struct rounding_control<double>:
  detail::c99_rounding_control { };

template<>
struct rounding_control<long double>:
  detail::c99_rounding_control { };

} // namespace interval_lib
} // namespace numeric
} // namespace boost

#undef BOOST_NUMERIC_INTERVAL_NO_HARDWARE

#endif // BOOST_NUMERIC_INTERVAL_DETAIL_C99_ROUNDING_CONTROL_HPP

c99_rounding_control.hpp

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