comparison DEPENDENCIES/generic/include/boost/spirit/home/karma/numeric/int.hpp @ 16:2665513ce2d3

Add boost headers

+//  Copyright (c) 2001-2012 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 <boost/limits.hpp>
+#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/support/detail/is_spirit_tag.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
+        {
+            BOOST_SPIRIT_IS_TAG()
+        };
+    }
+
+    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
+{
+#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
+    using spirit::short_;
+    using spirit::int_;
+    using spirit::long_;
+#ifdef BOOST_HAS_LONG_LONG
+    using spirit::long_long;
+#endif
+    using spirit::lit;    // lit(1) is equivalent to 1
+#endif
+
+    using spirit::short_type;
+    using spirit::int_type;
+    using spirit::long_type;
+#ifdef BOOST_HAS_LONG_LONG
+    using spirit::long_long_type;
+#endif
+
+    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, traits::test_zero(attr)
+                      , traits::test_negative(attr), force_sign) &&
+                   int_inserter<Radix, CharEncoding, Tag>::call(sink
+                      , traits::get_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_FAIL(OutputIterator, 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, traits::test_zero(attr)
+                      , traits::test_negative(attr), force_sign) &&
+                   int_inserter<Radix, CharEncoding, Tag>::call(sink
+                      , traits::get_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<typename remove_const<T>::type
+          , 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<typename remove_const<T>::type
+          , 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>
+    {
+        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<
+            typename remove_const<A0>::type
+          , 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