Added boost header

test/external/boost/range/adaptor/uniqued.hpp

@@ -0,0 +1,90 @@
+// Boost.Range library
+//
+//  Copyright Thorsten Ottosen, Neil Groves 2006 - 2008. Use, modification and
+//  distribution is subject to 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)
+//
+// For more information, see http://www.boost.org/libs/range/
+//
+
+#ifndef BOOST_RANGE_ADAPTOR_UNIQUED_IMPL_HPP
+#define BOOST_RANGE_ADAPTOR_UNIQUED_IMPL_HPP
+
+#include <boost/range/adaptor/adjacent_filtered.hpp>
+
+namespace boost
+{
+
+    namespace range_detail
+    {
+        struct unique_forwarder { };
+
+        struct unique_not_equal_to
+        {
+            typedef bool result_type;
+
+            template< class T >
+            bool operator()( const T& l, const T& r ) const
+            {
+                return !(l == r);
+            }
+        };
+
+        template<class ForwardRng>
+        class uniqued_range : public adjacent_filtered_range<unique_not_equal_to, ForwardRng, true>
+        {
+            typedef adjacent_filtered_range<unique_not_equal_to, ForwardRng, true> base;
+        public:
+            explicit uniqued_range(ForwardRng& rng)
+                : base(unique_not_equal_to(), rng)
+            {
+            }
+        };
+
+        template< class ForwardRng >
+        inline uniqued_range<ForwardRng>
+        operator|( ForwardRng& r,
+                   unique_forwarder )
+        {
+            return uniqued_range<ForwardRng>(r);
+        }
+
+        template< class ForwardRng >
+        inline uniqued_range<const ForwardRng>
+        operator|( const ForwardRng& r,
+                   unique_forwarder )
+        {
+            return uniqued_range<const ForwardRng>(r);
+        }
+
+    } // 'range_detail'
+
+    using range_detail::uniqued_range;
+
+    namespace adaptors
+    {
+        namespace
+        {
+            const range_detail::unique_forwarder uniqued =
+                       range_detail::unique_forwarder();
+        }
+
+        template<class ForwardRange>
+        inline uniqued_range<ForwardRange>
+        unique(ForwardRange& rng)
+        {
+            return uniqued_range<ForwardRange>(rng);
+        }
+
+        template<class ForwardRange>
+        inline uniqued_range<const ForwardRange>
+        unique(const ForwardRange& rng)
+        {
+            return uniqued_range<const ForwardRange>(rng);
+        }
+    } // 'adaptors'
+
+}
+
+#endif