/Src/Dependencies/Boost/boost/spirit/home/karma/numeric/int.hpp
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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_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_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, 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