third_party/boost/include/boost/spirit/home/karma/numeric/int.hpp - webm/webmlive - Git at Google

 //  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_KARMA_INT_FEB_23_2007_0840PM)
 #define BOOST_SPIRIT_KARMA_INT_FEB_23_2007_0840PM

 #if defined(_MSC_VER)
 #pragma once
 #endif

 #include <limits>
 #include <boost/config.hpp>
 #include <boost/mpl/bool.hpp>
 #include <boost/utility/enable_if.hpp>

 #include <boost/spirit/home/support/common_terminals.hpp>
 #include <boost/spirit/home/support/string_traits.hpp>
 #include <boost/spirit/home/support/numeric_traits.hpp>
 #include <boost/spirit/home/support/info.hpp>
 #include <boost/spirit/home/support/char_class.hpp>
 #include <boost/spirit/home/support/container.hpp>
 #include <boost/spirit/home/support/detail/get_encoding.hpp>
 #include <boost/spirit/home/karma/meta_compiler.hpp>
 #include <boost/spirit/home/karma/delimit_out.hpp>
 #include <boost/spirit/home/karma/auxiliary/lazy.hpp>
 #include <boost/spirit/home/karma/detail/get_casetag.hpp>
 #include <boost/spirit/home/karma/detail/extract_from.hpp>
 #include <boost/spirit/home/karma/detail/enable_lit.hpp>
 #include <boost/spirit/home/karma/domain.hpp>
 #include <boost/spirit/home/karma/numeric/detail/numeric_utils.hpp>
 #include <boost/fusion/include/at.hpp>
 #include <boost/fusion/include/value_at.hpp>
 #include <boost/fusion/include/vector.hpp>

 ///////////////////////////////////////////////////////////////////////////////
 namespace boost { namespace spirit
 {
     namespace tag
     {
         template <typename T, unsigned Radix, bool force_sign>
         struct int_generator {};
     }

     namespace karma
     {
         ///////////////////////////////////////////////////////////////////////
         // This one is the class that the user can instantiate directly in
         // order to create a customized int generator
         template <typename T = int, unsigned Radix = 10, bool force_sign = false>
         struct int_generator
           : spirit::terminal<tag::int_generator<T, Radix, force_sign> >
         {};
     }

     ///////////////////////////////////////////////////////////////////////////
     // Enablers
     ///////////////////////////////////////////////////////////////////////////
     template <>
     struct use_terminal<karma::domain, tag::short_>    // enables short_
       : mpl::true_ {};

     template <>
     struct use_terminal<karma::domain, tag::int_>      // enables int_
       : mpl::true_ {};

     template <>
     struct use_terminal<karma::domain, tag::long_>     // enables long_
       : mpl::true_ {};

 #ifdef BOOST_HAS_LONG_LONG
     template <>
     struct use_terminal<karma::domain, tag::long_long> // enables long_long
       : mpl::true_ {};
 #endif

     ///////////////////////////////////////////////////////////////////////////
     template <>
     struct use_terminal<karma::domain, short>    // enables lit(short(0))
       : mpl::true_ {};

     template <>
     struct use_terminal<karma::domain, int>      // enables lit(0)
       : mpl::true_ {};

     template <>
     struct use_terminal<karma::domain, long>     // enables lit(0L)
       : mpl::true_ {};

 #ifdef BOOST_HAS_LONG_LONG
     template <>
     struct use_terminal<karma::domain, boost::long_long_type> // enables lit(0LL)
       : mpl::true_ {};
 #endif

     ///////////////////////////////////////////////////////////////////////////
     template <typename A0>
     struct use_terminal<karma::domain         // enables short_(...)
       , terminal_ex<tag::short_, fusion::vector1<A0> >
     > : mpl::true_ {};

     template <typename A0>
     struct use_terminal<karma::domain         // enables int_(...)
       , terminal_ex<tag::int_, fusion::vector1<A0> >
     > : mpl::true_ {};

     template <typename A0>
     struct use_terminal<karma::domain         // enables long_(...)
       , terminal_ex<tag::long_, fusion::vector1<A0> >
     > : mpl::true_ {};

 #ifdef BOOST_HAS_LONG_LONG
     template <typename A0>
     struct use_terminal<karma::domain         // enables long_long(...)
       , terminal_ex<tag::long_long, fusion::vector1<A0> >
     > : mpl::true_ {};
 #endif

     ///////////////////////////////////////////////////////////////////////////
     template <>                               // enables *lazy* short_(...)
     struct use_lazy_terminal<karma::domain, tag::short_, 1>
       : mpl::true_ {};

     template <>                               // enables *lazy* int_(...)
     struct use_lazy_terminal<karma::domain, tag::int_, 1>
       : mpl::true_ {};

     template <>                               // enables *lazy* long_(...)
     struct use_lazy_terminal<karma::domain, tag::long_, 1>
       : mpl::true_ {};

 #ifdef BOOST_HAS_LONG_LONG
     template <>                               // enables *lazy* long_long(...)
     struct use_lazy_terminal<karma::domain, tag::long_long, 1>
       : mpl::true_ {};
 #endif

     ///////////////////////////////////////////////////////////////////////////
     // enables any custom int_generator
     template <typename T, unsigned Radix, bool force_sign>
     struct use_terminal<karma::domain, tag::int_generator<T, Radix, force_sign> >
       : mpl::true_ {};

     // enables any custom int_generator(...)
     template <typename T, unsigned Radix, bool force_sign, typename A0>
     struct use_terminal<karma::domain
       , terminal_ex<tag::int_generator<T, Radix, force_sign>
                   , fusion::vector1<A0> >
     > : mpl::true_ {};

     // enables *lazy* custom int_generator
     template <typename T, unsigned Radix, bool force_sign>
     struct use_lazy_terminal<
         karma::domain
       , tag::int_generator<T, Radix, force_sign>
       , 1 // arity
     > : mpl::true_ {};

     // enables lit(int)
     template <typename A0>
     struct use_terminal<karma::domain
           , terminal_ex<tag::lit, fusion::vector1<A0> >
           , typename enable_if<traits::is_int<A0> >::type>
       : mpl::true_ {};
 }}

 ///////////////////////////////////////////////////////////////////////////////
 namespace boost { namespace spirit { namespace karma
 {
     using spirit::short_;
     using spirit::short__type;
     using spirit::int_;
     using spirit::int__type;
     using spirit::long_;
     using spirit::long__type;
 #ifdef BOOST_HAS_LONG_LONG
     using spirit::long_long;
     using spirit::long_long_type;
 #endif

     using spirit::lit;    // lit(1) is equivalent to 1
     using spirit::lit_type;

     ///////////////////////////////////////////////////////////////////////////
     //  This specialization is used for int generators not having a direct
     //  initializer: int_, long_ etc. These generators must be used in
     //  conjunction with an Attribute.
     ///////////////////////////////////////////////////////////////////////////
     template <
         typename T, typename CharEncoding, typename Tag, unsigned Radix
       , bool force_sign>
     struct any_int_generator
       : primitive_generator<any_int_generator<T, CharEncoding, Tag, Radix
           , force_sign> >
     {
     private:
         template <typename OutputIterator, typename Attribute>
         static bool insert_int(OutputIterator& sink, Attribute const& attr)
         {
             return sign_inserter::call(sink, detail::is_zero(attr)
                       , detail::is_negative(attr), force_sign) &&
                    int_inserter<Radix, CharEncoding, Tag>::call(sink
                       , detail::absolute_value(attr));
         }

     public:
         template <typename Context, typename Unused>
         struct attribute
         {
             typedef T type;
         };

         // check template Attribute 'Radix' for validity
         BOOST_SPIRIT_ASSERT_MSG(
             Radix == 2 || Radix == 8 || Radix == 10 || Radix == 16,
             not_supported_radix, ());

         BOOST_SPIRIT_ASSERT_MSG(std::numeric_limits<T>::is_signed,
             signed_unsigned_mismatch, ());

         // int has a Attribute attached
         template <typename OutputIterator, typename Context, typename Delimiter
           , typename Attribute>
         static bool
         generate(OutputIterator& sink, Context& context, Delimiter const& d
           , Attribute const& attr)
         {
             if (!traits::has_optional_value(attr))
                 return false;       // fail if it's an uninitialized optional

             return insert_int(sink, traits::extract_from<T>(attr, context)) &&
                    delimit_out(sink, d);      // always do post-delimiting
         }

         // this int has no Attribute attached, it needs to have been
         // initialized from a direct literal
         template <typename OutputIterator, typename Context, typename Delimiter>
         static bool
         generate(OutputIterator&, Context&, Delimiter const&, unused_type)
         {
             // It is not possible (doesn't make sense) to use numeric generators
             // without providing any attribute, as the generator doesn't 'know'
             // what to output. The following assertion fires if this situation
             // is detected in your code.
             BOOST_SPIRIT_ASSERT_MSG(false, int_not_usable_without_attribute, ());
             return false;
         }

         template <typename Context>
         static info what(Context const& /*context*/)
         {
             return info("integer");
         }
     };

     ///////////////////////////////////////////////////////////////////////////
     //  This specialization is used for int generators having a direct
     //  initializer: int_(10), long_(20) etc.
     ///////////////////////////////////////////////////////////////////////////
     template <
         typename T, typename CharEncoding, typename Tag, unsigned Radix
       , bool force_sign, bool no_attribute>
     struct literal_int_generator
       : primitive_generator<literal_int_generator<T, CharEncoding, Tag, Radix
           , force_sign, no_attribute> >
     {
     private:
         template <typename OutputIterator, typename Attribute>
         static bool insert_int(OutputIterator& sink, Attribute const& attr)
         {
             return sign_inserter::call(sink, detail::is_zero(attr)
                       , detail::is_negative(attr), force_sign) &&
                    int_inserter<Radix, CharEncoding, Tag>::call(sink
                       , detail::absolute_value(attr));
         }

     public:
         template <typename Context, typename Unused = unused_type>
         struct attribute
           : mpl::if_c<no_attribute, unused_type, T>
         {};

         literal_int_generator(typename add_const<T>::type n)
           : n_(n) {}

         // check template Attribute 'Radix' for validity
         BOOST_SPIRIT_ASSERT_MSG(
             Radix == 2 || Radix == 8 || Radix == 10 || Radix == 16,
             not_supported_radix, ());

         BOOST_SPIRIT_ASSERT_MSG(std::numeric_limits<T>::is_signed,
             signed_unsigned_mismatch, ());

         // A int_(1) which additionally has an associated attribute emits
         // its immediate literal only if it matches the attribute, otherwise
         // it fails.
         template <typename OutputIterator, typename Context, typename Delimiter
           , typename Attribute>
         bool generate(OutputIterator& sink, Context& context
           , Delimiter const& d, Attribute const& attr) const
         {
             typedef typename attribute<Context>::type attribute_type;
             if (!traits::has_optional_value(attr) ||
                 n_ != traits::extract_from<attribute_type>(attr, context))
             {
                 return false;
             }
             return insert_int(sink, n_) && delimit_out(sink, d);
         }

         // A int_(1) without any associated attribute just emits its
         // immediate literal
         template <typename OutputIterator, typename Context, typename Delimiter>
         bool generate(OutputIterator& sink, Context&, Delimiter const& d
           , unused_type) const
         {
             return insert_int(sink, n_) && delimit_out(sink, d);
         }

         template <typename Context>
         static info what(Context const& /*context*/)
         {
             return info("integer");
         }

         T n_;
     };

     ///////////////////////////////////////////////////////////////////////////
     // Generator generators: make_xxx function (objects)
     ///////////////////////////////////////////////////////////////////////////
     namespace detail
     {
         template <typename T, typename Modifiers, unsigned Radix = 10
           , bool force_sign = false>
         struct make_int
         {
             static bool const lower =
                 has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
             static bool const upper =
                 has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;

             typedef any_int_generator<
                 T
               , typename spirit::detail::get_encoding_with_case<
                     Modifiers, unused_type, lower || upper>::type
               , typename detail::get_casetag<Modifiers, lower || upper>::type
               , Radix
               , force_sign
             > result_type;

             result_type operator()(unused_type, unused_type) const
             {
                 return result_type();
             }
         };
     }

     ///////////////////////////////////////////////////////////////////////////
     template <typename Modifiers>
     struct make_primitive<tag::short_, Modifiers>
       : detail::make_int<short, Modifiers> {};

     template <typename Modifiers>
     struct make_primitive<tag::int_, Modifiers>
       : detail::make_int<int, Modifiers> {};

     template <typename Modifiers>
     struct make_primitive<tag::long_, Modifiers>
       : detail::make_int<long, Modifiers> {};

 #ifdef BOOST_HAS_LONG_LONG
     template <typename Modifiers>
     struct make_primitive<tag::long_long, Modifiers>
       : detail::make_int<boost::long_long_type, Modifiers> {};
 #endif

     template <typename T, unsigned Radix, bool force_sign, typename Modifiers>
     struct make_primitive<tag::int_generator<T, Radix, force_sign>, Modifiers>
       : detail::make_int<T, Modifiers, Radix, force_sign> {};

     ///////////////////////////////////////////////////////////////////////////
     namespace detail
     {
         template <typename T, typename Modifiers, unsigned Radix = 10
           , bool force_sign = false>
         struct make_int_direct
         {
             static bool const lower =
                 has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
             static bool const upper =
                 has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;

             typedef literal_int_generator<
                 T
               , typename spirit::detail::get_encoding_with_case<
                     Modifiers, unused_type, lower || upper>::type
               , typename detail::get_casetag<Modifiers, lower || upper>::type
               , Radix, force_sign, false
             > result_type;

             template <typename Terminal>
             result_type operator()(Terminal const& term, unused_type) const
             {
                 return result_type(fusion::at_c<0>(term.args));
             }
         };
     }

     ///////////////////////////////////////////////////////////////////////////
     template <typename Modifiers, typename A0>
     struct make_primitive<
         terminal_ex<tag::short_, fusion::vector1<A0> >, Modifiers>
       : detail::make_int_direct<short, Modifiers> {};

     template <typename Modifiers, typename A0>
     struct make_primitive<
         terminal_ex<tag::int_, fusion::vector1<A0> >, Modifiers>
       : detail::make_int_direct<int, Modifiers> {};

     template <typename Modifiers, typename A0>
     struct make_primitive<
         terminal_ex<tag::long_, fusion::vector1<A0> >, Modifiers>
       : detail::make_int_direct<long, Modifiers> {};

 #ifdef BOOST_HAS_LONG_LONG
     template <typename Modifiers, typename A0>
     struct make_primitive<
         terminal_ex<tag::long_long, fusion::vector1<A0> >, Modifiers>
       : detail::make_int_direct<boost::long_long_type, Modifiers> {};
 #endif

     template <typename T, unsigned Radix, bool force_sign, typename A0
       , typename Modifiers>
     struct make_primitive<
         terminal_ex<tag::int_generator<T, Radix, force_sign>
           , fusion::vector1<A0> >, Modifiers>
       : detail::make_int_direct<T, Modifiers, Radix, force_sign> {};

     ///////////////////////////////////////////////////////////////////////////
     namespace detail
     {
         template <typename T, typename Modifiers>
         struct basic_int_literal
         {
             static bool const lower =
                 has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
             static bool const upper =
                 has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;

             typedef literal_int_generator<
                 T
               , typename spirit::detail::get_encoding_with_case<
                     Modifiers, unused_type, lower || upper>::type
               , typename detail::get_casetag<Modifiers, lower || upper>::type
               , 10, false, true
             > result_type;

             template <typename T_>
             result_type operator()(T_ i, unused_type) const
             {
                 return result_type(i);
             }
         };
     }

     template <typename Modifiers>
     struct make_primitive<short, Modifiers>
       : detail::basic_int_literal<short, Modifiers> {};

     template <typename Modifiers>
     struct make_primitive<int, Modifiers>
       : detail::basic_int_literal<int, Modifiers> {};

     template <typename Modifiers>
     struct make_primitive<long, Modifiers>
       : detail::basic_int_literal<long, Modifiers> {};

 #ifdef BOOST_HAS_LONG_LONG
     template <typename Modifiers>
     struct make_primitive<boost::long_long_type, Modifiers>
       : detail::basic_int_literal<boost::long_long_type, Modifiers> {};
 #endif

     // lit(int)
     template <typename Modifiers, typename A0>
     struct make_primitive<
             terminal_ex<tag::lit, fusion::vector1<A0> >
           , Modifiers
           , typename enable_if<traits::is_int<A0> >::type>
       : detail::basic_int_literal<A0, Modifiers>
     {
         static bool const lower =
             has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
         static bool const upper =
             has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;

         typedef literal_int_generator<
             A0
           , typename spirit::detail::get_encoding_with_case<
                 Modifiers, unused_type, lower || upper>::type
           , typename detail::get_casetag<Modifiers, lower || upper>::type
           , 10, false, true
         > result_type;

         template <typename Terminal>
         result_type operator()(Terminal const& term, unused_type) const
         {
             return result_type(fusion::at_c<0>(term.args));
         }
     };
 }}}

 #endif
	// 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_KARMA_INT_FEB_23_2007_0840PM)
	#define BOOST_SPIRIT_KARMA_INT_FEB_23_2007_0840PM

	#if defined(_MSC_VER)
	#pragma once
	#endif

	#include <limits>
	#include <boost/config.hpp>
	#include <boost/mpl/bool.hpp>
	#include <boost/utility/enable_if.hpp>

	#include <boost/spirit/home/support/common_terminals.hpp>
	#include <boost/spirit/home/support/string_traits.hpp>
	#include <boost/spirit/home/support/numeric_traits.hpp>
	#include <boost/spirit/home/support/info.hpp>
	#include <boost/spirit/home/support/char_class.hpp>
	#include <boost/spirit/home/support/container.hpp>
	#include <boost/spirit/home/support/detail/get_encoding.hpp>
	#include <boost/spirit/home/karma/meta_compiler.hpp>
	#include <boost/spirit/home/karma/delimit_out.hpp>
	#include <boost/spirit/home/karma/auxiliary/lazy.hpp>
	#include <boost/spirit/home/karma/detail/get_casetag.hpp>
	#include <boost/spirit/home/karma/detail/extract_from.hpp>
	#include <boost/spirit/home/karma/detail/enable_lit.hpp>
	#include <boost/spirit/home/karma/domain.hpp>
	#include <boost/spirit/home/karma/numeric/detail/numeric_utils.hpp>
	#include <boost/fusion/include/at.hpp>
	#include <boost/fusion/include/value_at.hpp>
	#include <boost/fusion/include/vector.hpp>

	///////////////////////////////////////////////////////////////////////////////
	namespace boost { namespace spirit
	{
	namespace tag
	{
	template <typename T, unsigned Radix, bool force_sign>
	struct int_generator {};
	}

	namespace karma
	{
	///////////////////////////////////////////////////////////////////////
	// This one is the class that the user can instantiate directly in
	// order to create a customized int generator
	template <typename T = int, unsigned Radix = 10, bool force_sign = false>
	struct int_generator
	: spirit::terminal<tag::int_generator<T, Radix, force_sign> >
	{};
	}

	///////////////////////////////////////////////////////////////////////////
	// Enablers
	///////////////////////////////////////////////////////////////////////////
	template <>
	struct use_terminal<karma::domain, tag::short_> // enables short_
	: mpl::true_ {};

	template <>
	struct use_terminal<karma::domain, tag::int_> // enables int_
	: mpl::true_ {};

	template <>
	struct use_terminal<karma::domain, tag::long_> // enables long_
	: mpl::true_ {};

	#ifdef BOOST_HAS_LONG_LONG
	template <>
	struct use_terminal<karma::domain, tag::long_long> // enables long_long
	: mpl::true_ {};
	#endif

	///////////////////////////////////////////////////////////////////////////
	template <>
	struct use_terminal<karma::domain, short> // enables lit(short(0))
	: mpl::true_ {};

	template <>
	struct use_terminal<karma::domain, int> // enables lit(0)
	: mpl::true_ {};

	template <>
	struct use_terminal<karma::domain, long> // enables lit(0L)
	: mpl::true_ {};

	#ifdef BOOST_HAS_LONG_LONG
	template <>
	struct use_terminal<karma::domain, boost::long_long_type> // enables lit(0LL)
	: mpl::true_ {};
	#endif

	///////////////////////////////////////////////////////////////////////////
	template <typename A0>
	struct use_terminal<karma::domain // enables short_(...)
	, terminal_ex<tag::short_, fusion::vector1<A0> >
	> : mpl::true_ {};

	template <typename A0>
	struct use_terminal<karma::domain // enables int_(...)
	, terminal_ex<tag::int_, fusion::vector1<A0> >
	> : mpl::true_ {};

	template <typename A0>
	struct use_terminal<karma::domain // enables long_(...)
	, terminal_ex<tag::long_, fusion::vector1<A0> >
	> : mpl::true_ {};

	#ifdef BOOST_HAS_LONG_LONG
	template <typename A0>
	struct use_terminal<karma::domain // enables long_long(...)
	, terminal_ex<tag::long_long, fusion::vector1<A0> >
	> : mpl::true_ {};
	#endif

	///////////////////////////////////////////////////////////////////////////
	template <> // enables lazy short_(...)
	struct use_lazy_terminal<karma::domain, tag::short_, 1>
	: mpl::true_ {};

	template <> // enables lazy int_(...)
	struct use_lazy_terminal<karma::domain, tag::int_, 1>
	: mpl::true_ {};

	template <> // enables lazy long_(...)
	struct use_lazy_terminal<karma::domain, tag::long_, 1>
	: mpl::true_ {};

	#ifdef BOOST_HAS_LONG_LONG
	template <> // enables lazy long_long(...)
	struct use_lazy_terminal<karma::domain, tag::long_long, 1>
	: mpl::true_ {};
	#endif

	///////////////////////////////////////////////////////////////////////////
	// enables any custom int_generator
	template <typename T, unsigned Radix, bool force_sign>
	struct use_terminal<karma::domain, tag::int_generator<T, Radix, force_sign> >
	: mpl::true_ {};

	// enables any custom int_generator(...)
	template <typename T, unsigned Radix, bool force_sign, typename A0>
	struct use_terminal<karma::domain
	, terminal_ex<tag::int_generator<T, Radix, force_sign>
	, fusion::vector1<A0> >
	> : mpl::true_ {};

	// enables lazy custom int_generator
	template <typename T, unsigned Radix, bool force_sign>
	struct use_lazy_terminal<
	karma::domain
	, tag::int_generator<T, Radix, force_sign>
	, 1 // arity
	> : mpl::true_ {};

	// enables lit(int)
	template <typename A0>
	struct use_terminal<karma::domain
	, terminal_ex<tag::lit, fusion::vector1<A0> >
	, typename enable_if<traits::is_int<A0> >::type>
	: mpl::true_ {};
	}}

	///////////////////////////////////////////////////////////////////////////////
	namespace boost { namespace spirit { namespace karma
	{
	using spirit::short_;
	using spirit::short__type;
	using spirit::int_;
	using spirit::int__type;
	using spirit::long_;
	using spirit::long__type;
	#ifdef BOOST_HAS_LONG_LONG
	using spirit::long_long;
	using spirit::long_long_type;
	#endif

	using spirit::lit; // lit(1) is equivalent to 1
	using spirit::lit_type;

	///////////////////////////////////////////////////////////////////////////
	// This specialization is used for int generators not having a direct
	// initializer: int_, long_ etc. These generators must be used in
	// conjunction with an Attribute.
	///////////////////////////////////////////////////////////////////////////
	template <
	typename T, typename CharEncoding, typename Tag, unsigned Radix
	, bool force_sign>
	struct any_int_generator
	: primitive_generator<any_int_generator<T, CharEncoding, Tag, Radix
	, force_sign> >
	{
	private:
	template <typename OutputIterator, typename Attribute>
	static bool insert_int(OutputIterator& sink, Attribute const& attr)
	{
	return sign_inserter::call(sink, detail::is_zero(attr)
	, detail::is_negative(attr), force_sign) &&
	int_inserter<Radix, CharEncoding, Tag>::call(sink
	, detail::absolute_value(attr));
	}

	public:
	template <typename Context, typename Unused>
	struct attribute
	{
	typedef T type;
	};

	// check template Attribute 'Radix' for validity
	BOOST_SPIRIT_ASSERT_MSG(
	Radix == 2 \|\| Radix == 8 \|\| Radix == 10 \|\| Radix == 16,
	not_supported_radix, ());

	BOOST_SPIRIT_ASSERT_MSG(std::numeric_limits<T>::is_signed,
	signed_unsigned_mismatch, ());

	// int has a Attribute attached
	template <typename OutputIterator, typename Context, typename Delimiter
	, typename Attribute>
	static bool
	generate(OutputIterator& sink, Context& context, Delimiter const& d
	, Attribute const& attr)
	{
	if (!traits::has_optional_value(attr))
	return false; // fail if it's an uninitialized optional

	return insert_int(sink, traits::extract_from<T>(attr, context)) &&
	delimit_out(sink, d); // always do post-delimiting
	}

	// this int has no Attribute attached, it needs to have been
	// initialized from a direct literal
	template <typename OutputIterator, typename Context, typename Delimiter>
	static bool
	generate(OutputIterator&, Context&, Delimiter const&, unused_type)
	{
	// It is not possible (doesn't make sense) to use numeric generators
	// without providing any attribute, as the generator doesn't 'know'
	// what to output. The following assertion fires if this situation
	// is detected in your code.
	BOOST_SPIRIT_ASSERT_MSG(false, int_not_usable_without_attribute, ());
	return false;
	}

	template <typename Context>
	static info what(Context const& /context/)
	{
	return info("integer");
	}
	};

	///////////////////////////////////////////////////////////////////////////
	// This specialization is used for int generators having a direct
	// initializer: int_(10), long_(20) etc.
	///////////////////////////////////////////////////////////////////////////
	template <
	typename T, typename CharEncoding, typename Tag, unsigned Radix
	, bool force_sign, bool no_attribute>
	struct literal_int_generator
	: primitive_generator<literal_int_generator<T, CharEncoding, Tag, Radix
	, force_sign, no_attribute> >
	{
	private:
	template <typename OutputIterator, typename Attribute>
	static bool insert_int(OutputIterator& sink, Attribute const& attr)
	{
	return sign_inserter::call(sink, detail::is_zero(attr)
	, detail::is_negative(attr), force_sign) &&
	int_inserter<Radix, CharEncoding, Tag>::call(sink
	, detail::absolute_value(attr));
	}

	public:
	template <typename Context, typename Unused = unused_type>
	struct attribute
	: mpl::if_c<no_attribute, unused_type, T>
	{};

	literal_int_generator(typename add_const<T>::type n)
	: n_(n) {}

	// check template Attribute 'Radix' for validity
	BOOST_SPIRIT_ASSERT_MSG(
	Radix == 2 \|\| Radix == 8 \|\| Radix == 10 \|\| Radix == 16,
	not_supported_radix, ());

	BOOST_SPIRIT_ASSERT_MSG(std::numeric_limits<T>::is_signed,
	signed_unsigned_mismatch, ());

	// A int_(1) which additionally has an associated attribute emits
	// its immediate literal only if it matches the attribute, otherwise
	// it fails.
	template <typename OutputIterator, typename Context, typename Delimiter
	, typename Attribute>
	bool generate(OutputIterator& sink, Context& context
	, Delimiter const& d, Attribute const& attr) const
	{
	typedef typename attribute<Context>::type attribute_type;
	if (!traits::has_optional_value(attr) \|\|
	n_ != traits::extract_from<attribute_type>(attr, context))
	{
	return false;
	}
	return insert_int(sink, n_) && delimit_out(sink, d);
	}

	// A int_(1) without any associated attribute just emits its
	// immediate literal
	template <typename OutputIterator, typename Context, typename Delimiter>
	bool generate(OutputIterator& sink, Context&, Delimiter const& d
	, unused_type) const
	{
	return insert_int(sink, n_) && delimit_out(sink, d);
	}

	template <typename Context>
	static info what(Context const& /context/)
	{
	return info("integer");
	}

	T n_;
	};

	///////////////////////////////////////////////////////////////////////////
	// Generator generators: make_xxx function (objects)
	///////////////////////////////////////////////////////////////////////////
	namespace detail
	{
	template <typename T, typename Modifiers, unsigned Radix = 10
	, bool force_sign = false>
	struct make_int
	{
	static bool const lower =
	has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
	static bool const upper =
	has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;

	typedef any_int_generator<
	T
	, typename spirit::detail::get_encoding_with_case<
	Modifiers, unused_type, lower \|\| upper>::type
	, typename detail::get_casetag<Modifiers, lower \|\| upper>::type
	, Radix
	, force_sign
	> result_type;

	result_type operator()(unused_type, unused_type) const
	{
	return result_type();
	}
	};
	}

	///////////////////////////////////////////////////////////////////////////
	template <typename Modifiers>
	struct make_primitive<tag::short_, Modifiers>
	: detail::make_int<short, Modifiers> {};

	template <typename Modifiers>
	struct make_primitive<tag::int_, Modifiers>
	: detail::make_int<int, Modifiers> {};

	template <typename Modifiers>
	struct make_primitive<tag::long_, Modifiers>
	: detail::make_int<long, Modifiers> {};

	#ifdef BOOST_HAS_LONG_LONG
	template <typename Modifiers>
	struct make_primitive<tag::long_long, Modifiers>
	: detail::make_int<boost::long_long_type, Modifiers> {};
	#endif

	template <typename T, unsigned Radix, bool force_sign, typename Modifiers>
	struct make_primitive<tag::int_generator<T, Radix, force_sign>, Modifiers>
	: detail::make_int<T, Modifiers, Radix, force_sign> {};

	///////////////////////////////////////////////////////////////////////////
	namespace detail
	{
	template <typename T, typename Modifiers, unsigned Radix = 10
	, bool force_sign = false>
	struct make_int_direct
	{
	static bool const lower =
	has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
	static bool const upper =
	has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;

	typedef literal_int_generator<
	T
	, typename spirit::detail::get_encoding_with_case<
	Modifiers, unused_type, lower \|\| upper>::type
	, typename detail::get_casetag<Modifiers, lower \|\| upper>::type
	, Radix, force_sign, false
	> result_type;

	template <typename Terminal>
	result_type operator()(Terminal const& term, unused_type) const
	{
	return result_type(fusion::at_c<0>(term.args));
	}
	};
	}

	///////////////////////////////////////////////////////////////////////////
	template <typename Modifiers, typename A0>
	struct make_primitive<
	terminal_ex<tag::short_, fusion::vector1<A0> >, Modifiers>
	: detail::make_int_direct<short, Modifiers> {};

	template <typename Modifiers, typename A0>
	struct make_primitive<
	terminal_ex<tag::int_, fusion::vector1<A0> >, Modifiers>
	: detail::make_int_direct<int, Modifiers> {};

	template <typename Modifiers, typename A0>
	struct make_primitive<
	terminal_ex<tag::long_, fusion::vector1<A0> >, Modifiers>
	: detail::make_int_direct<long, Modifiers> {};

	#ifdef BOOST_HAS_LONG_LONG
	template <typename Modifiers, typename A0>
	struct make_primitive<
	terminal_ex<tag::long_long, fusion::vector1<A0> >, Modifiers>
	: detail::make_int_direct<boost::long_long_type, Modifiers> {};
	#endif

	template <typename T, unsigned Radix, bool force_sign, typename A0
	, typename Modifiers>
	struct make_primitive<
	terminal_ex<tag::int_generator<T, Radix, force_sign>
	, fusion::vector1<A0> >, Modifiers>
	: detail::make_int_direct<T, Modifiers, Radix, force_sign> {};

	///////////////////////////////////////////////////////////////////////////
	namespace detail
	{
	template <typename T, typename Modifiers>
	struct basic_int_literal
	{
	static bool const lower =
	has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
	static bool const upper =
	has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;

	typedef literal_int_generator<
	T
	, typename spirit::detail::get_encoding_with_case<
	Modifiers, unused_type, lower \|\| upper>::type
	, typename detail::get_casetag<Modifiers, lower \|\| upper>::type
	, 10, false, true
	> result_type;

	template <typename T_>
	result_type operator()(T_ i, unused_type) const
	{
	return result_type(i);
	}
	};
	}

	template <typename Modifiers>
	struct make_primitive<short, Modifiers>
	: detail::basic_int_literal<short, Modifiers> {};

	template <typename Modifiers>
	struct make_primitive<int, Modifiers>
	: detail::basic_int_literal<int, Modifiers> {};

	template <typename Modifiers>
	struct make_primitive<long, Modifiers>
	: detail::basic_int_literal<long, Modifiers> {};

	#ifdef BOOST_HAS_LONG_LONG
	template <typename Modifiers>
	struct make_primitive<boost::long_long_type, Modifiers>
	: detail::basic_int_literal<boost::long_long_type, Modifiers> {};
	#endif

	// lit(int)
	template <typename Modifiers, typename A0>
	struct make_primitive<
	terminal_ex<tag::lit, fusion::vector1<A0> >
	, Modifiers
	, typename enable_if<traits::is_int<A0> >::type>
	: detail::basic_int_literal<A0, Modifiers>
	{
	static bool const lower =
	has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value;
	static bool const upper =
	has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value;

	typedef literal_int_generator<
	A0
	, typename spirit::detail::get_encoding_with_case<
	Modifiers, unused_type, lower \|\| upper>::type
	, typename detail::get_casetag<Modifiers, lower \|\| upper>::type
	, 10, false, true
	> result_type;

	template <typename Terminal>
	result_type operator()(Terminal const& term, unused_type) const
	{
	return result_type(fusion::at_c<0>(term.args));
	}
	};
	}}}

	#endif