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+//  (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000-2005.
+//  Use, modification and distribution are subject to 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).
+//
+//  See http://www.boost.org/libs/type_traits for most recent version including documentation.
+
+#ifndef BOOST_TYPE_TRAITS_IS_FLOATING_HPP_INCLUDED
+#define BOOST_TYPE_TRAITS_IS_FLOATING_HPP_INCLUDED
+
+#include <boost/type_traits/integral_constant.hpp>
+
+namespace boost {
+
+//* is a type T a floating-point type described in the standard (3.9.1p8)
+   template <class T> struct is_floating_point : public false_type{};
+   template <class T> struct is_floating_point<const T> : public is_floating_point<T>{};
+   template <class T> struct is_floating_point<volatile const T> : public is_floating_point<T>{};
+   template <class T> struct is_floating_point<volatile T> : public is_floating_point<T>{};
+   template<> struct is_floating_point<float> : public true_type{};
+   template<> struct is_floating_point<double> : public true_type{};
+   template<> struct is_floating_point<long double> : public true_type{};
+   
+#if defined(BOOST_HAS_FLOAT128)
+   template<> struct is_floating_point<__float128> : public true_type{};
+#endif
+
+} // namespace boost
+
+#endif // BOOST_TYPE_TRAITS_IS_FLOAT_HPP_INCLUDED