updated boost on windows

winx64/include/boost/poly_collection/detail/segment_backend.hpp

@@ -0,0 +1,85 @@
+/* Copyright 2016-2018 Joaquin M Lopez Munoz.
+ * 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/poly_collection for library home page.
+ */
+
+#ifndef BOOST_POLY_COLLECTION_DETAIL_SEGMENT_BACKEND_HPP
+#define BOOST_POLY_COLLECTION_DETAIL_SEGMENT_BACKEND_HPP
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <cstddef>
+#include <memory>
+#include <utility>
+
+namespace boost{
+
+namespace poly_collection{
+
+namespace detail{
+
+/* Internal *virtual* interface of segment<Model,Allocator> (please note that
+ * a non-virtual interface exists accessible thrown downcasting). Member
+ * functions have been defined to minimize virtual function calls according to
+ * usage patterns by poly_collection. For instance, ranges are returned rather
+ * than iterators to allow for caching of and end sentinel at a higher level.
+ * Passed elements are type erased with [const_]value_pointer.
+ */
+
+template<typename Model,typename Allocator>
+struct segment_backend
+{
+  using segment_backend_unique_ptr=
+    std::unique_ptr<segment_backend,void(*)(segment_backend*)>;
+  using value_pointer=void*;
+  using const_value_pointer=const void*;
+  using base_iterator=typename Model::base_iterator;
+  using const_base_iterator=typename Model::const_base_iterator;
+  template<typename T>
+  using const_iterator=typename Model::template const_iterator<T>;
+  using base_sentinel=typename Model::base_sentinel;
+  using range=std::pair<base_iterator,base_sentinel>;
+
+  segment_backend()=default;
+  segment_backend(const segment_backend&)=delete;
+  segment_backend& operator=(const segment_backend&)=delete;
+
+  virtual                            ~segment_backend()=default;
+  virtual segment_backend_unique_ptr copy()const=0;
+  virtual segment_backend_unique_ptr copy(const Allocator&)const=0;
+  virtual segment_backend_unique_ptr empty_copy(const Allocator&)const=0;
+  virtual segment_backend_unique_ptr move(const Allocator&)const=0;
+  virtual bool                       equal(const segment_backend&)const=0;
+
+  virtual Allocator     get_allocator()const noexcept=0;
+  virtual base_iterator begin()const noexcept=0;
+  virtual base_iterator end()const noexcept=0;
+  virtual bool          empty()const noexcept=0;
+  virtual std::size_t   size()const noexcept=0;
+  virtual std::size_t   max_size()const noexcept=0;
+  virtual std::size_t   capacity()const noexcept=0;
+  virtual base_sentinel reserve(std::size_t)=0;
+  virtual base_sentinel shrink_to_fit()=0;
+  virtual range         push_back(const_value_pointer)=0;
+  virtual range         push_back_move(value_pointer)=0;
+  virtual range         insert(const_base_iterator,const_value_pointer)=0;
+  virtual range         insert_move(const_base_iterator,value_pointer)=0;
+  virtual range         erase(const_base_iterator)=0;
+  virtual range         erase(const_base_iterator,const_base_iterator)=0;
+  virtual range         erase_till_end(const_base_iterator)=0;
+  virtual range         erase_from_begin(const_base_iterator)=0;
+  virtual base_sentinel clear()noexcept=0;
+};
+
+} /* namespace poly_collection::detail */
+
+} /* namespace poly_collection */
+
+} /* namespace boost */
+
+#endif