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Diffstat (limited to '3rdParty/Boost/src/boost/spirit/home/support/detail/as_variant.hpp')
-rw-r--r--3rdParty/Boost/src/boost/spirit/home/support/detail/as_variant.hpp104
1 files changed, 104 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/support/detail/as_variant.hpp b/3rdParty/Boost/src/boost/spirit/home/support/detail/as_variant.hpp
new file mode 100644
index 0000000..e2fe18d
--- /dev/null
+++ b/3rdParty/Boost/src/boost/spirit/home/support/detail/as_variant.hpp
@@ -0,0 +1,104 @@
+/*=============================================================================
+ Copyright (c) 2001-2011 Joel de Guzman
+
+ 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)
+==============================================================================*/
+#ifndef BOOST_PP_IS_ITERATING
+#if !defined(BOOST_SPIRIT_AS_VARIANT_NOVEMBER_16_2007_0420PM)
+#define BOOST_SPIRIT_AS_VARIANT_NOVEMBER_16_2007_0420PM
+
+#include <boost/preprocessor/iterate.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/enum_binary_params.hpp>
+#include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
+#include <boost/preprocessor/repetition/repeat_from_to.hpp>
+#include <boost/variant/variant_fwd.hpp>
+#include <boost/fusion/include/size.hpp>
+#include <boost/fusion/include/begin.hpp>
+#include <boost/fusion/include/next.hpp>
+#include <boost/fusion/include/value_of.hpp>
+#include <boost/mpl/fold.hpp>
+#include <boost/mpl/vector.hpp>
+#include <boost/mpl/push_back.hpp>
+#include <boost/mpl/equal_to.hpp>
+#include <boost/mpl/contains.hpp>
+#include <boost/type_traits/is_same.hpp>
+
+namespace boost { namespace spirit { namespace detail
+{
+ template <int size>
+ struct as_variant_impl;
+
+ template <>
+ struct as_variant_impl<0>
+ {
+ template <typename Iterator>
+ struct apply
+ {
+ typedef variant<> type;
+ };
+ };
+
+#define BOOST_FUSION_NEXT_ITERATOR(z, n, data) \
+ typedef typename fusion::result_of::next<BOOST_PP_CAT(I, n)>::type \
+ BOOST_PP_CAT(I, BOOST_PP_INC(n));
+
+#define BOOST_FUSION_NEXT_CALL_ITERATOR(z, n, data) \
+ typename gen::BOOST_PP_CAT(I, BOOST_PP_INC(n)) \
+ BOOST_PP_CAT(i, BOOST_PP_INC(n)) = fusion::next(BOOST_PP_CAT(i, n));
+
+#define BOOST_FUSION_VALUE_OF_ITERATOR(z, n, data) \
+ typedef typename fusion::result_of::value_of<BOOST_PP_CAT(I, n)>::type \
+ BOOST_PP_CAT(T, n);
+
+#define BOOST_PP_FILENAME_1 <boost/spirit/home/support/detail/as_variant.hpp>
+#define BOOST_PP_ITERATION_LIMITS (1, BOOST_VARIANT_LIMIT_TYPES)
+#include BOOST_PP_ITERATE()
+
+#undef BOOST_FUSION_NEXT_ITERATOR
+#undef BOOST_FUSION_NEXT_CALL_ITERATOR
+#undef BOOST_FUSION_VALUE_OF_ITERATOR
+
+ template <typename Sequence>
+ struct as_variant
+ {
+ // build a variant generator being able to generate a variant holding
+ // all of the types as given in the typelist
+ typedef typename
+ detail::as_variant_impl<fusion::result_of::size<Sequence>::value>
+ gen;
+
+ // use this generator to create the actual variant
+ typedef typename gen::template apply<
+ typename fusion::result_of::begin<Sequence>::type
+ >::type
+ type;
+ };
+}}}
+
+#endif
+#else // defined(BOOST_PP_IS_ITERATING)
+///////////////////////////////////////////////////////////////////////////////
+//
+// Preprocessor vertical repetition code
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#define N BOOST_PP_ITERATION()
+
+ template <>
+ struct as_variant_impl<N>
+ {
+ template <typename I0>
+ struct apply
+ {
+ BOOST_PP_REPEAT(N, BOOST_FUSION_NEXT_ITERATOR, _)
+ BOOST_PP_REPEAT(N, BOOST_FUSION_VALUE_OF_ITERATOR, _)
+ typedef variant<BOOST_PP_ENUM_PARAMS(N, T)> type;
+ };
+ };
+
+#undef N
+#endif // defined(BOOST_PP_IS_ITERATING)
+