整理

2026-03-23 20:54:41 +08:00
commit e13b3650e9
4596 changed files with 1015768 additions and 0 deletions
--- a/include/boost/move/algo/detail/basic_op.hpp
+++ b/include/boost/move/algo/detail/basic_op.hpp
@@ -0,0 +1,122 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2015-2016.
+// 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)
+//
+// See http://www.boost.org/libs/move for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+#ifndef BOOST_MOVE_ALGO_BASIC_OP
+#define BOOST_MOVE_ALGO_BASIC_OP
+
+#ifndef BOOST_CONFIG_HPP
+#  include <boost/config.hpp>
+#endif
+#
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#  pragma once
+#endif
+
+#include <boost/move/utility_core.hpp>
+#include <boost/move/adl_move_swap.hpp>
+#include <boost/move/detail/iterator_traits.hpp>
+#include <boost/move/algo/move.hpp>
+
+namespace boost {
+namespace movelib {
+
+struct forward_t{};
+struct backward_t{};
+struct three_way_t{};
+struct three_way_forward_t{};
+struct four_way_t{};
+
+struct move_op
+{
+   template <class SourceIt, class DestinationIt>
+   inline void operator()(SourceIt source, DestinationIt dest)
+   {  *dest = ::boost::move(*source);  }
+
+   template <class SourceIt, class DestinationIt>
+   inline DestinationIt operator()(forward_t, SourceIt first, SourceIt last, DestinationIt dest_begin)
+   {  return ::boost::move(first, last, dest_begin);  }
+
+   template <class SourceIt, class DestinationIt>
+   inline DestinationIt operator()(backward_t, SourceIt first, SourceIt last, DestinationIt dest_last)
+   {  return ::boost::move_backward(first, last, dest_last);  }
+
+   template <class SourceIt, class DestinationIt1, class DestinationIt2>
+   inline void operator()(three_way_t, SourceIt srcit, DestinationIt1 dest1it, DestinationIt2 dest2it)
+   {
+      *dest2it = boost::move(*dest1it);
+      *dest1it = boost::move(*srcit);
+   }
+
+   template <class SourceIt, class DestinationIt1, class DestinationIt2>
+   DestinationIt2 operator()(three_way_forward_t, SourceIt srcit, SourceIt srcitend, DestinationIt1 dest1it, DestinationIt2 dest2it)
+   {
+      //Destination2 range can overlap SourceIt range so avoid boost::move
+      while(srcit != srcitend){
+         this->operator()(three_way_t(), srcit++, dest1it++, dest2it++);
+      }
+      return dest2it;
+   }
+
+   template <class SourceIt, class DestinationIt1, class DestinationIt2, class DestinationIt3>
+   inline void operator()(four_way_t, SourceIt srcit, DestinationIt1 dest1it, DestinationIt2 dest2it, DestinationIt3 dest3it)
+   {
+      *dest3it = boost::move(*dest2it);
+      *dest2it = boost::move(*dest1it);
+      *dest1it = boost::move(*srcit);
+   }
+};
+
+struct swap_op
+{
+   template <class SourceIt, class DestinationIt>
+   inline void operator()(SourceIt source, DestinationIt dest)
+   {  boost::adl_move_swap(*dest, *source);  }
+
+   template <class SourceIt, class DestinationIt>
+   inline DestinationIt operator()(forward_t, SourceIt first, SourceIt last, DestinationIt dest_begin)
+   {  return boost::adl_move_swap_ranges(first, last, dest_begin);  }
+
+   template <class SourceIt, class DestinationIt>
+   inline DestinationIt operator()(backward_t, SourceIt first, SourceIt last, DestinationIt dest_begin)
+   {  return boost::adl_move_swap_ranges_backward(first, last, dest_begin);  }
+
+   template <class SourceIt, class DestinationIt1, class DestinationIt2>
+   inline void operator()(three_way_t, SourceIt srcit, DestinationIt1 dest1it, DestinationIt2 dest2it)
+   {
+      typename ::boost::movelib::iterator_traits<SourceIt>::value_type tmp(boost::move(*dest2it));
+      *dest2it = boost::move(*dest1it);
+      *dest1it = boost::move(*srcit);
+      *srcit = boost::move(tmp);
+   }
+
+   template <class SourceIt, class DestinationIt1, class DestinationIt2>
+   DestinationIt2 operator()(three_way_forward_t, SourceIt srcit, SourceIt srcitend, DestinationIt1 dest1it, DestinationIt2 dest2it)
+   {
+      while(srcit != srcitend){
+         this->operator()(three_way_t(), srcit++, dest1it++, dest2it++);
+      }
+      return dest2it;
+   }
+
+   template <class SourceIt, class DestinationIt1, class DestinationIt2, class DestinationIt3>
+   inline void operator()(four_way_t, SourceIt srcit, DestinationIt1 dest1it, DestinationIt2 dest2it, DestinationIt3 dest3it)
+   {
+      typename ::boost::movelib::iterator_traits<SourceIt>::value_type tmp(boost::move(*dest3it));
+      *dest3it = boost::move(*dest2it);
+      *dest2it = boost::move(*dest1it);
+      *dest1it = boost::move(*srcit);
+      *srcit = boost::move(tmp);
+   }
+};
+
+
+}} //namespace boost::movelib
+
+#endif   //BOOST_MOVE_ALGO_BASIC_OP