Squashed 'third_party/boostorg/range/' content from commit 4cfd4d8
Change-Id: I641c49f21039952b16f888223a952503e43a28a9
git-subtree-dir: third_party/boostorg/range
git-subtree-split: 4cfd4d8287ca949d7f29256adf3e796a0d1775ec
diff --git a/include/boost/range/algorithm/unique.hpp b/include/boost/range/algorithm/unique.hpp
new file mode 100644
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+++ b/include/boost/range/algorithm/unique.hpp
@@ -0,0 +1,107 @@
+// Copyright Neil Groves 2009. 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_ALGORITHM_UNIQUE_HPP_INCLUDED
+#define BOOST_RANGE_ALGORITHM_UNIQUE_HPP_INCLUDED
+
+#include <boost/concept_check.hpp>
+#include <boost/range/begin.hpp>
+#include <boost/range/end.hpp>
+#include <boost/range/concepts.hpp>
+#include <boost/range/detail/range_return.hpp>
+#include <algorithm>
+
+namespace boost
+{
+ namespace range
+ {
+
+/// \brief template function unique
+///
+/// range-based version of the unique std algorithm
+///
+/// \pre Rng meets the requirements for a Forward range
+template< range_return_value re, class ForwardRange >
+inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type
+unique( ForwardRange& rng )
+{
+ BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
+ return range_return<ForwardRange,re>::
+ pack( std::unique( boost::begin(rng),
+ boost::end(rng)), rng );
+}
+
+/// \overload
+template< range_return_value re, class ForwardRange >
+inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type
+unique( const ForwardRange& rng )
+{
+ BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
+ return range_return<const ForwardRange,re>::
+ pack( std::unique( boost::begin(rng),
+ boost::end(rng)), rng );
+}
+/// \overload
+template< range_return_value re, class ForwardRange, class BinaryPredicate >
+inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type
+unique( ForwardRange& rng, BinaryPredicate pred )
+{
+ BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
+ return range_return<ForwardRange,re>::
+ pack(std::unique(boost::begin(rng), boost::end(rng), pred),
+ rng);
+}
+/// \overload
+template< range_return_value re, class ForwardRange, class BinaryPredicate >
+inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type
+unique( const ForwardRange& rng, BinaryPredicate pred )
+{
+ BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
+ return range_return<const ForwardRange,re>::
+ pack(std::unique(boost::begin(rng), boost::end(rng), pred),
+ rng);
+}
+
+/// \overload
+template< class ForwardRange >
+inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange, return_begin_found>::type
+unique( ForwardRange& rng )
+{
+ BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
+ return ::boost::range::unique<return_begin_found>(rng);
+}
+/// \overload
+template< class ForwardRange >
+inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange, return_begin_found>::type
+unique( const ForwardRange& rng )
+{
+ BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
+ return ::boost::range::unique<return_begin_found>(rng);
+}
+/// \overload
+template< class ForwardRange, class BinaryPredicate >
+inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange, return_begin_found>::type
+unique( ForwardRange& rng, BinaryPredicate pred )
+{
+ BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
+ return ::boost::range::unique<return_begin_found>(rng, pred);
+}
+/// \overload
+template< class ForwardRange, class BinaryPredicate >
+inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange, return_begin_found>::type
+unique( const ForwardRange& rng, BinaryPredicate pred )
+{
+ BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
+ return ::boost::range::unique<return_begin_found>(rng, pred);
+}
+
+ } // namespace range
+ using range::unique;
+} // namespace boost
+
+#endif // include guard