整理

2026-03-23 20:54:41 +08:00
commit e13b3650e9
4596 changed files with 1015768 additions and 0 deletions
--- a/include/boost/range/adaptor/copied.hpp
+++ b/include/boost/range/adaptor/copied.hpp
@@ -0,0 +1,68 @@
+// Boost.Range library
+//
+//  Copyright Thorsten Ottosen, Neil Groves 2006. 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_COPIED_HPP
+#define BOOST_RANGE_ADAPTOR_COPIED_HPP
+
+#include <boost/range/adaptor/argument_fwd.hpp>
+#include <boost/range/adaptor/sliced.hpp>
+#include <boost/range/size_type.hpp>
+#include <boost/range/iterator_range.hpp>
+#include <boost/range/concepts.hpp>
+
+namespace boost
+{
+    namespace adaptors
+    {
+        struct copied
+        {
+            copied(std::size_t t_, std::size_t u_)
+                : t(t_), u(u_) {}
+
+            std::size_t t;
+            std::size_t u;
+        };
+
+        template<class CopyableRandomAccessRange>
+        inline CopyableRandomAccessRange
+        operator|(const CopyableRandomAccessRange& r, const copied& f)
+        {
+            BOOST_RANGE_CONCEPT_ASSERT((
+                RandomAccessRangeConcept<const CopyableRandomAccessRange>));
+
+            iterator_range<
+                BOOST_DEDUCED_TYPENAME range_iterator<
+                    const CopyableRandomAccessRange
+                >::type
+            > temp(adaptors::slice(r, f.t, f.u));
+
+            return CopyableRandomAccessRange(temp.begin(), temp.end());
+        }
+
+        template<class CopyableRandomAccessRange>
+        inline CopyableRandomAccessRange
+        copy(const CopyableRandomAccessRange& rng, std::size_t t, std::size_t u)
+        {
+            BOOST_RANGE_CONCEPT_ASSERT((
+                RandomAccessRangeConcept<const CopyableRandomAccessRange>));
+
+            iterator_range<
+                BOOST_DEDUCED_TYPENAME range_iterator<
+                    const CopyableRandomAccessRange
+                >::type
+            > temp(adaptors::slice(rng, t, u));
+
+            return CopyableRandomAccessRange( temp.begin(), temp.end() );
+        }
+    } // 'adaptors'
+
+}
+
+#endif // include guard