Index: third_party/boost/boost/fusion/iterator/equal_to.hpp |
diff --git a/third_party/boost/boost/fusion/iterator/equal_to.hpp b/third_party/boost/boost/fusion/iterator/equal_to.hpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..2db276752044088d31e35d1e808153a82742d84b |
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+++ b/third_party/boost/boost/fusion/iterator/equal_to.hpp |
@@ -0,0 +1,93 @@ |
+/*============================================================================= |
+ Copyright (c) 2001-2006 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) |
+==============================================================================*/ |
+#if !defined(FUSION_EQUAL_TO_05052005_1208) |
+#define FUSION_EQUAL_TO_05052005_1208 |
+ |
+#include <boost/type_traits/is_same.hpp> |
+#include <boost/fusion/support/tag_of.hpp> |
+#include <boost/type_traits/add_const.hpp> |
+#include <boost/fusion/support/is_iterator.hpp> |
+#include <boost/mpl/and.hpp> |
+#include <boost/utility/enable_if.hpp> |
+ |
+namespace boost { namespace fusion |
+{ |
+ // Special tags: |
+ struct iterator_facade_tag; // iterator facade tag |
+ struct array_iterator_tag; // boost::array iterator tag |
+ struct mpl_iterator_tag; // mpl sequence iterator tag |
+ struct std_pair_iterator_tag; // std::pair iterator tag |
+ |
+ namespace extension |
+ { |
+ template <typename Tag> |
+ struct equal_to_impl |
+ { |
+ // default implementation |
+ template <typename I1, typename I2> |
+ struct apply |
+ : is_same<typename add_const<I1>::type, typename add_const<I2>::type> |
+ {}; |
+ }; |
+ |
+ template <> |
+ struct equal_to_impl<iterator_facade_tag> |
+ { |
+ template <typename I1, typename I2> |
+ struct apply : I1::template equal_to<I1, I2> {}; |
+ }; |
+ |
+ template <> |
+ struct equal_to_impl<array_iterator_tag>; |
+ |
+ template <> |
+ struct equal_to_impl<mpl_iterator_tag>; |
+ |
+ template <> |
+ struct equal_to_impl<std_pair_iterator_tag>; |
+ } |
+ |
+ namespace result_of |
+ { |
+ template <typename I1, typename I2> |
+ struct equal_to |
+ : extension::equal_to_impl<typename detail::tag_of<I1>::type>:: |
+ template apply<I1, I2> |
+ {}; |
+ } |
+ |
+ namespace iterator_operators |
+ { |
+ template <typename Iter1, typename Iter2> |
+ inline typename |
+ enable_if< |
+ mpl::and_<is_fusion_iterator<Iter1>, is_fusion_iterator<Iter2> > |
+ , bool |
+ >::type |
+ operator==(Iter1 const&, Iter2 const&) |
+ { |
+ return result_of::equal_to<Iter1, Iter2>::value; |
+ } |
+ |
+ template <typename Iter1, typename Iter2> |
+ inline typename |
+ enable_if< |
+ mpl::and_<is_fusion_iterator<Iter1>, is_fusion_iterator<Iter2> > |
+ , bool |
+ >::type |
+ operator!=(Iter1 const&, Iter2 const&) |
+ { |
+ return !result_of::equal_to<Iter1, Iter2>::value; |
+ } |
+ } |
+ |
+ using iterator_operators::operator==; |
+ using iterator_operators::operator!=; |
+}} |
+ |
+#endif |
+ |