Chris@16: //  Copyright (c) 2001-2011 Hartmut Kaiser
Chris@16: //
Chris@16: //  Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #if !defined(BOOST_SPIRIT_NUMERIC_TRAITS_JAN_07_2011_0722AM)
Chris@16: #define BOOST_SPIRIT_NUMERIC_TRAITS_JAN_07_2011_0722AM
Chris@16: 
Chris@16: #if defined(_MSC_VER)
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/config.hpp>
Chris@16: #include <boost/mpl/bool.hpp>
Chris@16: #include <boost/integer_traits.hpp>
Chris@16: #include <boost/utility/enable_if.hpp>
Chris@16: 
Chris@16: namespace boost { namespace spirit { namespace traits
Chris@16: {
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     // Determine if T is a boolean type
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename T>
Chris@16:     struct is_bool : mpl::false_ {};
Chris@16: 
Chris@16:     template <typename T>
Chris@16:     struct is_bool<T const> : is_bool<T> {};
Chris@16: 
Chris@16:     template <>
Chris@16:     struct is_bool<bool> : mpl::true_ {};
Chris@16: 
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     // Determine if T is a signed integer type
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename T>
Chris@16:     struct is_int : mpl::false_ {};
Chris@16: 
Chris@16:     template <typename T>
Chris@16:     struct is_int<T const> : is_int<T> {};
Chris@16: 
Chris@16:     template <>
Chris@16:     struct is_int<short> : mpl::true_ {};
Chris@16: 
Chris@16:     template <>
Chris@16:     struct is_int<int> : mpl::true_ {};
Chris@16: 
Chris@16:     template <>
Chris@16:     struct is_int<long> : mpl::true_ {};
Chris@16: 
Chris@16: #ifdef BOOST_HAS_LONG_LONG
Chris@16:     template <>
Chris@16:     struct is_int<boost::long_long_type> : mpl::true_ {};
Chris@16: #endif
Chris@16: 
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     // Determine if T is an unsigned integer type
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename T>
Chris@16:     struct is_uint : mpl::false_ {};
Chris@16: 
Chris@16:     template <typename T>
Chris@16:     struct is_uint<T const> : is_uint<T> {};
Chris@16: 
Chris@16: #if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
Chris@16:     template <>
Chris@16:     struct is_uint<unsigned short> : mpl::true_ {};
Chris@16: #endif
Chris@16: 
Chris@16:     template <>
Chris@16:     struct is_uint<unsigned int> : mpl::true_ {};
Chris@16: 
Chris@16:     template <>
Chris@16:     struct is_uint<unsigned long> : mpl::true_ {};
Chris@16: 
Chris@16: #ifdef BOOST_HAS_LONG_LONG
Chris@16:     template <>
Chris@16:     struct is_uint<boost::ulong_long_type> : mpl::true_ {};
Chris@16: #endif
Chris@16: 
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     // Determine if T is a floating point type
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename T>
Chris@16:     struct is_real : mpl::false_ {};
Chris@16: 
Chris@16:     template <typename T>
Chris@16:     struct is_real<T const> : is_uint<T> {};
Chris@16: 
Chris@16:     template <>
Chris@16:     struct is_real<float> : mpl::true_ {};
Chris@16: 
Chris@16:     template <>
Chris@16:     struct is_real<double> : mpl::true_ {};
Chris@16: 
Chris@16:     template <>
Chris@16:     struct is_real<long double> : mpl::true_ {};
Chris@16: 
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     // customization points for numeric operations
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename T, typename Enable = void>
Chris@16:     struct absolute_value;
Chris@16: 
Chris@16:     template <typename T, typename Enable = void>
Chris@16:     struct is_negative;
Chris@16: 
Chris@16:     template <typename T, typename Enable = void>
Chris@16:     struct is_zero;
Chris@16: 
Chris@16:     template <typename T, typename Enable = void>
Chris@16:     struct pow10_helper;
Chris@16: 
Chris@16:     template <typename T, typename Enable = void>
Chris@16:     struct is_nan;
Chris@16: 
Chris@16:     template <typename T, typename Enable = void>
Chris@16:     struct is_infinite;
Chris@101:     
Chris@16:     template <typename T, typename Enable = void>
Chris@101:     struct check_overflow : mpl::false_ {};
Chris@101:         
Chris@16:     template <typename T>
Chris@101:     struct check_overflow<T, typename enable_if_c<integer_traits<T>::is_integral>::type>
Chris@101:         : mpl::true_ {};
Chris@16: }}}
Chris@16: 
Chris@16: #endif