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boost/type_traits/is_floating_point.hpp

//  (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