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- // Copyright (c) 2001-2011 Hartmut Kaiser
- //
- // 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)
- #if !defined(BOOST_SPIRIT_NUMERIC_TRAITS_JAN_07_2011_0722AM)
- #define BOOST_SPIRIT_NUMERIC_TRAITS_JAN_07_2011_0722AM
- #if defined(_MSC_VER)
- #pragma once
- #endif
- #include <boost/config.hpp>
- #include <boost/limits.hpp>
- #include <boost/mpl/bool.hpp>
- namespace boost { namespace spirit { namespace traits
- {
- ///////////////////////////////////////////////////////////////////////////
- // Determine if T is a boolean type
- ///////////////////////////////////////////////////////////////////////////
- template <typename T>
- struct is_bool : mpl::false_ {};
- template <typename T>
- struct is_bool<T const> : is_bool<T> {};
- template <>
- struct is_bool<bool> : mpl::true_ {};
- ///////////////////////////////////////////////////////////////////////////
- // Determine if T is a signed integer type
- ///////////////////////////////////////////////////////////////////////////
- template <typename T>
- struct is_int : mpl::false_ {};
- template <typename T>
- struct is_int<T const> : is_int<T> {};
- template <>
- struct is_int<short> : mpl::true_ {};
- template <>
- struct is_int<int> : mpl::true_ {};
- template <>
- struct is_int<long> : mpl::true_ {};
- #ifdef BOOST_HAS_LONG_LONG
- template <>
- struct is_int<boost::long_long_type> : mpl::true_ {};
- #endif
- ///////////////////////////////////////////////////////////////////////////
- // Determine if T is an unsigned integer type
- ///////////////////////////////////////////////////////////////////////////
- template <typename T>
- struct is_uint : mpl::false_ {};
- template <typename T>
- struct is_uint<T const> : is_uint<T> {};
- #if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
- template <>
- struct is_uint<unsigned short> : mpl::true_ {};
- #endif
- template <>
- struct is_uint<unsigned int> : mpl::true_ {};
- template <>
- struct is_uint<unsigned long> : mpl::true_ {};
- #ifdef BOOST_HAS_LONG_LONG
- template <>
- struct is_uint<boost::ulong_long_type> : mpl::true_ {};
- #endif
- ///////////////////////////////////////////////////////////////////////////
- // Determine if T is a floating point type
- ///////////////////////////////////////////////////////////////////////////
- template <typename T>
- struct is_real : mpl::false_ {};
- template <typename T>
- struct is_real<T const> : is_uint<T> {};
- template <>
- struct is_real<float> : mpl::true_ {};
- template <>
- struct is_real<double> : mpl::true_ {};
- template <>
- struct is_real<long double> : mpl::true_ {};
- ///////////////////////////////////////////////////////////////////////////
- // customization points for numeric operations
- ///////////////////////////////////////////////////////////////////////////
- template <typename T, typename Enable = void>
- struct absolute_value;
- template <typename T, typename Enable = void>
- struct is_negative;
- template <typename T, typename Enable = void>
- struct is_zero;
- template <typename T, typename Enable = void>
- struct pow10_helper;
- template <typename T, typename Enable = void>
- struct is_nan;
- template <typename T, typename Enable = void>
- struct is_infinite;
- template <typename T, typename Enable = void>
- struct check_overflow : mpl::bool_<std::numeric_limits<T>::is_bounded> {};
- }}}
- #endif
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