numeric/interval/limits.hpp

0001 /* Boost interval/limits.hpp template implementation file
0002  *
0003  * Copyright 2000 Jens Maurer
0004  * Copyright 2002-2003 Hervé Brönnimann, Guillaume Melquiond, Sylvain Pion
0005  *
0006  * Distributed under the Boost Software License, Version 1.0.
0007  * (See accompanying file LICENSE_1_0.txt or
0008  * copy at http://www.boost.org/LICENSE_1_0.txt)
0009  */
0010
0011 #ifndef BOOST_NUMERIC_INTERVAL_LIMITS_HPP
0012 #define BOOST_NUMERIC_INTERVAL_LIMITS_HPP
0013
0014
0015 #include <boost/config.hpp>
0016 #include <boost/limits.hpp>
0017 #include <boost/numeric/interval/detail/interval_prototype.hpp>
0018
0019 namespace std {
0020
0021 template<class T, class Policies>
0022 class numeric_limits<boost::numeric::interval<T, Policies> >
0023   : public numeric_limits<T>
0024 {
0025 private:
0026   typedef boost::numeric::interval<T, Policies> I;
0027   typedef numeric_limits<T> bl;
0028 public:
0029   static I min BOOST_PREVENT_MACRO_SUBSTITUTION () BOOST_NOEXCEPT_OR_NOTHROW { return I((bl::min)(), (bl::min)()); }
0030   static I max BOOST_PREVENT_MACRO_SUBSTITUTION () BOOST_NOEXCEPT_OR_NOTHROW { return I((bl::max)(), (bl::max)()); }
0031   static I epsilon() BOOST_NOEXCEPT_OR_NOTHROW { return I(bl::epsilon(), bl::epsilon()); }
0032
0033   BOOST_STATIC_CONSTANT(float_round_style, round_style = round_indeterminate);
0034   BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
0035
0036   static I infinity () BOOST_NOEXCEPT_OR_NOTHROW { return I::whole(); }
0037   static I quiet_NaN() BOOST_NOEXCEPT_OR_NOTHROW { return I::empty(); }
0038   static I signaling_NaN() BOOST_NOEXCEPT_OR_NOTHROW
0039   { return I(bl::signaling_NaN(), bl::signaling_Nan()); }
0040   static I denorm_min() BOOST_NOEXCEPT_OR_NOTHROW
0041   { return I(bl::denorm_min(), bl::denorm_min()); }
0042 private:
0043   static I round_error();    // hide this on purpose, not yet implemented
0044 };
0045
0046 } // namespace std
0047
0048
0049 #endif // BOOST_NUMERIC_INTERVAL_LIMITS_HPP