add subtree-ish sources for 12.0.3

[ceph.git] / ceph / src / boost / libs / fusion / include / boost / fusion / view / zip_view / detail / equal_to_impl.hpp

diff --git a/ceph/src/boost/libs/fusion/include/boost/fusion/view/zip_view/detail/equal_to_impl.hpp b/ceph/src/boost/libs/fusion/include/boost/fusion/view/zip_view/detail/equal_to_impl.hpp
new file mode 100644 (file)
index 0000000..6292a52
--- /dev/null
+++ b/ceph/src/boost/libs/fusion/include/boost/fusion/view/zip_view/detail/equal_to_impl.hpp
@@ -0,0 +1,63 @@
+/*=============================================================================
+    Copyright (c) 2001-2011 Joel de Guzman
+    Copyright (c) 2006 Dan Marsden
+
+    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_IMPL_20060128_1423)
+#define FUSION_EQUAL_TO_IMPL_20060128_1423
+
+#include <boost/fusion/support/config.hpp>
+#include <boost/fusion/mpl.hpp>
+
+#include <boost/mpl/lambda.hpp>
+#include <boost/mpl/and.hpp>
+#include <boost/mpl/transform_view.hpp>
+#include <boost/mpl/zip_view.hpp>
+#include <boost/mpl/vector.hpp>
+#include <boost/mpl/unpack_args.hpp>
+#include <boost/mpl/find_if.hpp>
+#include <boost/mpl/end.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/equal_to.hpp>
+
+#include <boost/type_traits/is_same.hpp>
+
+#include <boost/fusion/iterator/equal_to.hpp>
+
+namespace boost { namespace fusion {
+
+    struct zip_view_iterator_tag;
+
+    namespace detail
+    {
+        template<typename It1, typename It2>
+        struct zip_iterators_equal
+        {
+            typedef mpl::zip_view<mpl::vector2<typename It1::iterators, typename It2::iterators> > zipped;
+            typedef mpl::transform_view<zipped, mpl::unpack_args<result_of::equal_to<mpl::_,mpl::_> > > transformed;
+
+            typedef typename mpl::find_if<transformed, mpl::equal_to<mpl::_, mpl::false_> >::type found;
+
+            typedef typename is_same<typename mpl::end<transformed>::type, found>::type type;
+        };
+    }
+
+    namespace extension
+    {
+        template<typename Tag>
+        struct equal_to_impl;
+
+        template<>
+        struct equal_to_impl<zip_view_iterator_tag>
+        {
+            template<typename It1, typename It2>
+            struct apply
+                : detail::zip_iterators_equal<It1, It2>::type
+            {};
+        };
+    }
+}}
+
+#endif