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3rdparty/boost_1_81_0/boost/numeric/interval/limits.hpp 1.71 KB
63e88f80   Hu Chunming   提交三方库
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  /* Boost interval/limits.hpp template implementation file
   *
   * Copyright 2000 Jens Maurer
   * Copyright 2002-2003 Hervé Brönnimann, 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_LIMITS_HPP
  #define BOOST_NUMERIC_INTERVAL_LIMITS_HPP
  
  
  #include <boost/config.hpp>
  #include <boost/limits.hpp>
  #include <boost/numeric/interval/detail/interval_prototype.hpp>
  
  namespace std {
  
  template<class T, class Policies>
  class numeric_limits<boost::numeric::interval<T, Policies> >
    : public numeric_limits<T>
  {
  private:
    typedef boost::numeric::interval<T, Policies> I;
    typedef numeric_limits<T> bl;
  public:
    static I min BOOST_PREVENT_MACRO_SUBSTITUTION () BOOST_NOEXCEPT_OR_NOTHROW { return I((bl::min)(), (bl::min)()); }
    static I max BOOST_PREVENT_MACRO_SUBSTITUTION () BOOST_NOEXCEPT_OR_NOTHROW { return I((bl::max)(), (bl::max)()); }
    static I epsilon() BOOST_NOEXCEPT_OR_NOTHROW { return I(bl::epsilon(), bl::epsilon()); }
  
    BOOST_STATIC_CONSTANT(float_round_style, round_style = round_indeterminate);
    BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
  
    static I infinity () BOOST_NOEXCEPT_OR_NOTHROW { return I::whole(); }
    static I quiet_NaN() BOOST_NOEXCEPT_OR_NOTHROW { return I::empty(); }
    static I signaling_NaN() BOOST_NOEXCEPT_OR_NOTHROW
    { return I(bl::signaling_NaN(), bl::signaling_Nan()); }
    static I denorm_min() BOOST_NOEXCEPT_OR_NOTHROW
    { return I(bl::denorm_min(), bl::denorm_min()); }
  private:
    static I round_error();    // hide this on purpose, not yet implemented
  };
  
  } // namespace std
  
  
  #endif // BOOST_NUMERIC_INTERVAL_LIMITS_HPP