comparison DEPENDENCIES/generic/include/boost/container/small_vector.hpp @ 102:f46d142149f5

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+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2015-2015. 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/container for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_CONTAINER_CONTAINER_SMALL_VECTOR_HPP
+#define BOOST_CONTAINER_CONTAINER_SMALL_VECTOR_HPP
+
+#ifndef BOOST_CONFIG_HPP
+#  include <boost/config.hpp>
+#endif
+
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#  pragma once
+#endif
+
+#include <boost/container/detail/config_begin.hpp>
+#include <boost/container/detail/workaround.hpp>
+
+// container
+#include <boost/container/container_fwd.hpp>
+#include <boost/container/vector.hpp>
+#include <boost/container/allocator_traits.hpp>
+#include <boost/container/new_allocator.hpp> //new_allocator
+// container/detail
+#include <boost/container/detail/type_traits.hpp>
+#include <boost/container/detail/version_type.hpp>
+
+//move
+#include <boost/move/adl_move_swap.hpp>
+#include <boost/move/iterator.hpp>
+
+//move/detail
+#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+#include <boost/move/detail/fwd_macros.hpp>
+#endif
+
+//std
+#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+#include <initializer_list>   //for std::initializer_list
+#endif
+
+namespace boost {
+namespace container {
+
+#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+template <class T, class Allocator = new_allocator<T> >
+class small_vector_base;
+
+#endif
+
+//! A non-standard allocator used to implement `small_vector`.
+//! Users should never use it directly. It is described here
+//! for documentation purposes.
+//! 
+//! This allocator inherits from a standard-conforming allocator
+//! and forwards member functiond to the standard allocator except
+//! when internal storage is being used as memory source.
+//!
+//! This allocator is a "partially_propagable" allocator and
+//! defines `is_partially_propagable` as true_type.
+//! 
+//! A partially propagable allocator means that not all storage
+//! allocatod by an instance of `small_vector_allocator` can be
+//! deallocated by another instance of this type, even is both
+//! instances compare equal or an instance is propagated to another
+//! one using the copy/move constructor or assignment. The storage that
+//! can never be propagated is identified by `storage_is_unpropagable(p)`.
+//!
+//! `boost::container::vector` supports partially propagable allocators
+//! fallbacking to deep copy/swap/move operations when internal storage
+//! is being used to store vector elements.
+//!
+//! `small_vector_allocator` assumes that will be instantiated as
+//! `boost::container::vector< T, small_vector_allocator<Allocator> >`
+//! and internal storage can be obtained downcasting that vector
+//! to `small_vector_base<T>`.
+template<class Allocator>
+class small_vector_allocator
+   : public Allocator
+{
+   typedef unsigned int allocation_type;
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   private:
+
+   BOOST_COPYABLE_AND_MOVABLE(small_vector_allocator)
+
+   const Allocator &as_base() const
+   {  return static_cast<const Allocator&>(*this);  }
+
+   Allocator &as_base() 
+   {  return static_cast<Allocator&>(*this);  }
+
+   #endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+   public:
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   typedef allocator_traits<Allocator> allocator_traits_type;
+   #endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+   typedef typename allocator_traits<Allocator>::value_type          value_type;
+   typedef typename allocator_traits<Allocator>::pointer             pointer;
+   typedef typename allocator_traits<Allocator>::const_pointer       const_pointer;
+   typedef typename allocator_traits<Allocator>::reference           reference;
+   typedef typename allocator_traits<Allocator>::const_reference     const_reference;
+   typedef typename allocator_traits<Allocator>::size_type           size_type;
+   typedef typename allocator_traits<Allocator>::difference_type     difference_type;
+   typedef typename allocator_traits<Allocator>::void_pointer        void_pointer;
+   typedef typename allocator_traits<Allocator>::const_void_pointer  const_void_pointer;
+
+   typedef typename allocator_traits<Allocator>::propagate_on_container_copy_assignment   propagate_on_container_copy_assignment;
+   typedef typename allocator_traits<Allocator>::propagate_on_container_move_assignment   propagate_on_container_move_assignment;
+   typedef typename allocator_traits<Allocator>::propagate_on_container_swap              propagate_on_container_swap;
+   //! An integral constant with member `::value == false`
+   typedef BOOST_CONTAINER_IMPDEF(container_detail::bool_<false>)                         is_always_equal;
+   //! An integral constant with member `::value == true`
+   typedef BOOST_CONTAINER_IMPDEF(container_detail::bool_<true>)                          is_partially_propagable;
+
+   BOOST_CONTAINER_DOCIGN(typedef container_detail::version_type<small_vector_allocator BOOST_CONTAINER_I 1>  version;)
+
+   //!Obtains an small_vector_allocator that allocates
+   //!objects of type T2
+   template<class T2>
+   struct rebind
+   {
+      typedef typename allocator_traits<Allocator>::template rebind_alloc<T2>::type other;
+   };
+
+   #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
+      //!Constructor from arbitrary arguments
+      template<class ...Args>
+      explicit small_vector_allocator(BOOST_FWD_REF(Args) ...args)
+         : Allocator(::boost::forward<Args>(args)...)
+      {}
+   #else
+      #define BOOST_CONTAINER_SMALL_VECTOR_ALLOCATOR_CTOR_CODE(N) \
+      BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \
+      explicit small_vector_allocator(BOOST_MOVE_UREF##N)\
+         : Allocator(BOOST_MOVE_FWD##N)\
+      {}\
+      //
+      BOOST_MOVE_ITERATE_0TO9(BOOST_CONTAINER_SMALL_VECTOR_ALLOCATOR_CTOR_CODE)
+      #undef BOOST_CONTAINER_SMALL_VECTOR_ALLOCATOR_CTOR_CODE
+   #endif
+
+   //!Constructor from other small_vector_allocator.
+   //!Never throws
+   small_vector_allocator(const small_vector_allocator &other) BOOST_NOEXCEPT_OR_NOTHROW
+      : Allocator(other.as_base())
+   {}
+
+   //!Move constructor from small_vector_allocator.
+   //!Never throws
+   small_vector_allocator(BOOST_RV_REF(small_vector_allocator) other) BOOST_NOEXCEPT_OR_NOTHROW
+      : Allocator(::boost::move(other.as_base()))
+   {}
+
+   //!Constructor from related small_vector_allocator.
+   //!Never throws
+   template<class OtherAllocator>
+   small_vector_allocator(const small_vector_allocator<OtherAllocator> &other) BOOST_NOEXCEPT_OR_NOTHROW
+      : Allocator(other.as_base())
+   {}
+
+   //!Move constructor from related small_vector_allocator.
+   //!Never throws
+   template<class OtherAllocator>
+   small_vector_allocator(BOOST_RV_REF(small_vector_allocator<OtherAllocator>) other) BOOST_NOEXCEPT_OR_NOTHROW
+      : Allocator(::boost::move(other.as_base()))
+   {}
+
+   //!Assignment from other small_vector_allocator.
+   //!Never throws
+   small_vector_allocator & operator=(BOOST_COPY_ASSIGN_REF(small_vector_allocator) other) BOOST_NOEXCEPT_OR_NOTHROW
+   {  return static_cast<small_vector_allocator&>(this->Allocator::operator=(other.as_base()));  }
+
+   //!Move constructor from other small_vector_allocator.
+   //!Never throws
+   small_vector_allocator & operator=(BOOST_RV_REF(small_vector_allocator) other) BOOST_NOEXCEPT_OR_NOTHROW
+   {  return static_cast<small_vector_allocator&>(this->Allocator::operator=(::boost::move(other.as_base())));  }
+
+   //!Assignment from related small_vector_allocator.
+   //!Never throws
+   template<class OtherAllocator>
+   small_vector_allocator & operator=(BOOST_COPY_ASSIGN_REF(small_vector_allocator<OtherAllocator>) other) BOOST_NOEXCEPT_OR_NOTHROW
+   {  return static_cast<small_vector_allocator&>(this->Allocator::operator=(other.as_base()));  }
+
+   //!Move assignment from related small_vector_allocator.
+   //!Never throws
+   template<class OtherAllocator>
+   small_vector_allocator & operator=(BOOST_RV_REF(small_vector_allocator<OtherAllocator>) other) BOOST_NOEXCEPT_OR_NOTHROW
+   {  return static_cast<small_vector_allocator&>(this->Allocator::operator=(::boost::move(other.as_base())));  }
+
+   //!Allocates storage from the standard-conforming allocator
+   pointer allocate(size_type count, const_void_pointer hint = const_void_pointer())
+   {  return allocator_traits_type::allocate(this->as_base(), count, hint);  }
+
+   //!Deallocates previously allocated memory.
+   //!Never throws
+   void deallocate(pointer ptr, size_type n) BOOST_NOEXCEPT_OR_NOTHROW
+   {
+      if(!this->is_internal_storage(ptr))
+         allocator_traits_type::deallocate(this->as_base(), ptr, n);
+   }
+
+   //!Returns the maximum number of elements that could be allocated.
+   //!Never throws
+   size_type max_size() const BOOST_NOEXCEPT_OR_NOTHROW
+   {  return allocator_traits_type::max_size(this->as_base());   }
+
+   small_vector_allocator select_on_container_copy_construction() const
+   {  return small_vector_allocator(allocator_traits_type::select_on_container_copy_construction(this->as_base())); }
+
+   bool storage_is_unpropagable(pointer p) const
+   {  return this->is_internal_storage(p) || allocator_traits_type::storage_is_unpropagable(this->as_base(), p);  }
+
+   //!Swaps two allocators, does nothing
+   //!because this small_vector_allocator is stateless
+   friend void swap(small_vector_allocator &l, small_vector_allocator &r) BOOST_NOEXCEPT_OR_NOTHROW
+   {  boost::adl_move_swap(l.as_base(), r.as_base());  }
+
+   //!An small_vector_allocator always compares to true, as memory allocated with one
+   //!instance can be deallocated by another instance (except for unpropagable storage)
+   friend bool operator==(const small_vector_allocator &l, const small_vector_allocator &r) BOOST_NOEXCEPT_OR_NOTHROW
+   {  return allocator_traits_type::equal(l.as_base(), r.as_base());  }
+
+   //!An small_vector_allocator always compares to false, as memory allocated with one
+   //!instance can be deallocated by another instance
+   friend bool operator!=(const small_vector_allocator &l, const small_vector_allocator &r) BOOST_NOEXCEPT_OR_NOTHROW
+   {  return !(l == r);   }
+
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   /*
+   //!An advanced function that offers in-place expansion shrink to fit and new allocation
+   //!capabilities. Memory allocated with this function can only be deallocated with deallocate()
+   //!or deallocate_many().
+   //!This function is available only with Version == 2
+   pointer allocation_command(allocation_type command,
+                         size_type limit_size,
+                         size_type &prefer_in_recvd_out_size,
+                         pointer &reuse)
+   {  return allocator_traits_type::allocation_command(command, limit_size, prefer_in_recvd_out_size, reuse);  }
+
+   //!Returns maximum the number of objects the previously allocated memory
+   //!pointed by p can hold.
+   //!Memory must not have been allocated with
+   //!allocate_one or allocate_individual.
+   //!This function is available only with Version == 2
+   size_type size(pointer p) const BOOST_NOEXCEPT_OR_NOTHROW
+   {  return allocator_traits_type::size(p);  }
+   */
+   private:
+   /*
+   //!Allocates just one object. Memory allocated with this function
+   //!must be deallocated only with deallocate_one().
+   //!Throws bad_alloc if there is no enough memory
+   //!This function is available only with Version == 2
+   using Allocator::allocate_one;
+   using Allocator::allocate_individual;
+   using Allocator::deallocate_one;
+   using Allocator::deallocate_individual;
+   using Allocator::allocate_many;
+   using Allocator::deallocate_many;*/
+
+   bool is_internal_storage(pointer p) const
+   {  return this->internal_storage() == p;  }
+
+   pointer internal_storage() const
+   {
+      typedef typename Allocator::value_type                                              value_type;
+      typedef container_detail::vector_alloc_holder< small_vector_allocator<Allocator> >  vector_alloc_holder_t;
+      typedef vector<value_type, small_vector_allocator<Allocator> >                      vector_base;
+      typedef small_vector_base<value_type, Allocator>                                    derived_type;
+      //
+      const vector_alloc_holder_t &v_holder = static_cast<const vector_alloc_holder_t &>(*this);
+      const vector_base &v_base = reinterpret_cast<const vector_base &>(v_holder);
+      const derived_type &d_base = static_cast<const derived_type &>(v_base);
+      return d_base.internal_storage();
+   }
+   #endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+};
+
+//! This class consists of common code from all small_vector<T, N> types that don't depend on the
+//! "N" template parameter. This class is non-copyable and non-destructible, so this class tipically
+//! used as reference argument to functions that read or write small vectors. Since `small_vector<T, N>`
+//! derives from `small_vector_base<T>`, the conversion to `small_vector_base` is implicit:
+//! <code>
+//!
+//! //Clients can pass any small_vector<Foo, N>.
+//! void read_any_small_vector_of_foo(const small_vector_base<Foo> &in_parameter);
+//! void modify_any_small_vector_of_foo(small_vector_base<Foo> &out_parameter);
+//! 
+//! void some_function()
+//! {
+//!    small_vector<Foo, 8> myvector;
+//!    read_any_small_vector_of_foo(myvector);   // Reads myvector
+//!    modify_any_small_vector_of_foo(myvector); // Modifies myvector
+//! }
+//! </code>
+//!
+//! All `boost::container:vector` member functions are inherited. See `vector` documentation for details.
+//!
+template <class T, class SecondaryAllocator>
+class small_vector_base
+   : public vector<T, small_vector_allocator<SecondaryAllocator> >
+{
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   typedef typename allocator_traits<SecondaryAllocator>::pointer pointer;
+
+   BOOST_COPYABLE_AND_MOVABLE(small_vector_base)
+
+   friend class small_vector_allocator<SecondaryAllocator>;
+
+   pointer internal_storage() const BOOST_NOEXCEPT_OR_NOTHROW
+   {
+      return boost::intrusive::pointer_traits<pointer>::pointer_to
+         (*const_cast<T*>(static_cast<const T*>(static_cast<const void*>(&m_storage_start))));
+   }
+
+   typedef vector<T, small_vector_allocator<SecondaryAllocator> > base_type;
+         base_type &as_base()       { return static_cast<base_type&>(*this); }
+   const base_type &as_base() const { return static_cast<const base_type&>(*this); }
+
+   public:
+   typedef typename container_detail::aligned_storage
+      <sizeof(T), container_detail::alignment_of<T>::value>::type storage_type;
+   typedef small_vector_allocator<SecondaryAllocator>             allocator_type;
+
+   protected:
+   typedef typename base_type::initial_capacity_t initial_capacity_t;
+
+   explicit small_vector_base(initial_capacity_t, std::size_t initial_capacity)
+      : base_type(initial_capacity_t(), this->internal_storage(), initial_capacity)
+   {}
+
+   template<class AllocFwd>
+   explicit small_vector_base(initial_capacity_t, std::size_t capacity, BOOST_FWD_REF(AllocFwd) a)
+      : base_type(initial_capacity_t(), this->internal_storage(), capacity, ::boost::forward<AllocFwd>(a))
+   {}
+
+   ~small_vector_base(){}
+
+   using base_type::is_propagable_from;
+   using base_type::steal_resources;
+
+   private:
+   //The only member
+   storage_type m_storage_start;
+
+   #endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+   public:
+   small_vector_base& operator=(BOOST_COPY_ASSIGN_REF(small_vector_base) other)
+   {  return static_cast<small_vector_base&>(this->base_type::operator=(static_cast<base_type const&>(other)));  }
+
+   small_vector_base& operator=(BOOST_RV_REF(small_vector_base) other)
+   {  return static_cast<small_vector_base&>(this->base_type::operator=(BOOST_MOVE_BASE(base_type, other))); }
+
+   void swap(small_vector_base &other)
+   {  return this->base_type::swap(other);  }
+};
+
+#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+/////////////////////////////////////////////////////
+//
+//          small_vector_storage_calculator
+//
+/////////////////////////////////////////////////////
+template<std::size_t Needed, std::size_t Hdr, std::size_t SSize, bool NeedsZero = (0u == Needed || Needed <= Hdr)>
+struct small_vector_storage_calculator_helper
+{
+   static const std::size_t value = (Needed - Hdr - 1u)/SSize + 1u;
+};
+
+template<std::size_t Needed, std::size_t Hdr, std::size_t SSize>
+struct small_vector_storage_calculator_helper<Needed, Hdr, SSize, true>
+{
+   static const std::size_t value = 0u;
+};
+
+template<class Storage, class Allocator, class T, std::size_t N>
+struct small_vector_storage_calculator
+{
+   typedef small_vector_base<T, Allocator> svh_type;
+   typedef vector<T, small_vector_allocator<Allocator> > svhb_type;
+   static const std::size_t s_align = container_detail::alignment_of<Storage>::value;
+   static const std::size_t s_size = sizeof(Storage);
+   static const std::size_t svh_sizeof = sizeof(svh_type);
+   static const std::size_t svhb_sizeof = sizeof(svhb_type);
+   static const std::size_t s_start = ((svhb_sizeof-1)/s_align+1)*s_align;
+   static const std::size_t header_bytes = svh_sizeof-s_start;
+   static const std::size_t needed_bytes = sizeof(T)*N;
+   static const std::size_t needed_extra_storages =
+      small_vector_storage_calculator_helper<needed_bytes, header_bytes, s_size>::value;
+};
+
+/////////////////////////////////////////////////////
+//
+//          small_vector_storage_definer
+//
+/////////////////////////////////////////////////////
+template<class Storage, std::size_t N>
+struct small_vector_storage
+{
+   Storage m_rest_of_storage[N];
+};
+
+template<class Storage>
+struct small_vector_storage<Storage, 0>
+{};
+
+template<class Allocator, std::size_t N>
+struct small_vector_storage_definer
+{
+   typedef typename Allocator::value_type                                  value_type;
+   typedef typename small_vector_base<value_type, Allocator>::storage_type storage_type;
+   static const std::size_t needed_extra_storages =
+      small_vector_storage_calculator<storage_type, Allocator, value_type, N>::needed_extra_storages;
+   typedef small_vector_storage<storage_type, needed_extra_storages> type;
+};
+
+#endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+//! small_vector a vector-like container optimized for the case when it contains few elements.
+//! It contains some preallocated elements in-place, which allows it to avoid the use of dynamic storage allocation
+//! when the actual number of elements is below that preallocated threshold.
+//!
+//! `small_vector<T, N, Allocator>` is convertible to `small_vector_base<T, Allocator>` that is independent
+//! from the preallocated element capacity, so client code does not need to be templated on that N argument.
+//!
+//! All `boost::container::vector` member functions are inherited. See `vector` documentation for details.
+//!
+//! \tparam T The type of object that is stored in the small_vector
+//! \tparam N The number of preallocated elements stored inside small_vector. It shall be less than Allocator::max_size();
+//! \tparam Allocator The allocator used for memory management when the number of elements exceeds N.
+template <class T, std::size_t N, class Allocator BOOST_CONTAINER_DOCONLY(= new_allocator<T>) >
+class small_vector : public small_vector_base<T, Allocator>
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   , private small_vector_storage_definer<Allocator, N>::type
+   #endif
+{
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   typedef small_vector_base<T, Allocator> base_type;
+   typedef typename small_vector_storage_definer<Allocator, N>::type remaining_storage_holder;
+
+   BOOST_COPYABLE_AND_MOVABLE(small_vector)
+
+   typedef typename base_type::initial_capacity_t initial_capacity_t;
+   typedef allocator_traits<typename base_type::allocator_type> allocator_traits_type;
+
+   public:
+   typedef small_vector_storage_calculator< typename small_vector_base<T, Allocator>
+      ::storage_type, Allocator, T, N> storage_test;
+
+   static const std::size_t needed_extra_storages =  storage_test::needed_extra_storages;
+   static const std::size_t needed_bytes =  storage_test::needed_bytes;
+   static const std::size_t header_bytes =  storage_test::header_bytes;
+   static const std::size_t s_start =  storage_test::s_start;
+
+   typedef typename base_type::allocator_type   allocator_type;
+   typedef typename base_type::size_type        size_type;
+   typedef typename base_type::value_type       value_type;
+
+   static std::size_t internal_capacity()
+   {  return (sizeof(small_vector) - storage_test::s_start)/sizeof(T);  }
+
+   #endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+   public:
+   small_vector()
+      : base_type(initial_capacity_t(), internal_capacity())
+   {}
+
+   explicit small_vector(size_type n)
+      : base_type(initial_capacity_t(), internal_capacity())
+   {  this->resize(n); }
+
+   explicit small_vector(const allocator_type &a)
+      : base_type(initial_capacity_t(), internal_capacity(), a)
+   {}
+
+   small_vector(size_type n, const allocator_type &a)
+      : base_type(initial_capacity_t(), internal_capacity(), a)
+   {  this->resize(n); }
+
+   small_vector(const small_vector &other)
+      : base_type( initial_capacity_t(), internal_capacity()
+                 , allocator_traits_type::select_on_container_copy_construction(other.get_stored_allocator()))
+   {  this->assign(other.cbegin(), other.cend());  }
+
+   small_vector(const small_vector &other, const allocator_type &a)
+      : base_type(initial_capacity_t(), internal_capacity(), a)
+   {  this->assign(other.cbegin(), other.cend());  }
+
+   small_vector(BOOST_RV_REF(small_vector) other)
+      : base_type(initial_capacity_t(), internal_capacity(), ::boost::move(other.get_stored_allocator()))
+   {  this->move_construct_impl(other, other.get_stored_allocator());   }
+
+   small_vector(BOOST_RV_REF(small_vector) other, const allocator_type &a)
+      : base_type(initial_capacity_t(), internal_capacity(), a)
+   {  this->move_construct_impl(other, a);   }
+
+   #if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
+   small_vector(std::initializer_list<value_type> il, const allocator_type& a = allocator_type())
+      : base_type(initial_capacity_t(), internal_capacity(), a)
+   {
+      this->assign(il.begin(), il.end());
+   }
+   #endif
+
+   small_vector& operator=(BOOST_COPY_ASSIGN_REF(small_vector) other)
+   {  return static_cast<small_vector&>(this->base_type::operator=(static_cast<base_type const&>(other)));  }
+
+   small_vector& operator=(BOOST_RV_REF(small_vector) other)
+   {  return static_cast<small_vector&>(this->base_type::operator=(BOOST_MOVE_BASE(base_type, other))); }
+
+   void swap(small_vector &other)
+   {  return this->base_type::swap(other);  }
+
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   private:
+   void move_construct_impl(small_vector &x, const allocator_type &a)
+   {
+      if(base_type::is_propagable_from(x.get_stored_allocator(), x.data(), a, true)){
+         this->steal_resources(x);
+      }
+      else{
+         this->assign( boost::make_move_iterator(container_detail::iterator_to_raw_pointer(x.begin()))
+                     , boost::make_move_iterator(container_detail::iterator_to_raw_pointer(x.end  ()))
+                     );
+      }
+   }
+   #endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+};
+
+}}
+
+#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+/*
+namespace boost {
+
+//!has_trivial_destructor_after_move<> == true_type
+//!specialization for optimizations
+template <class T, class Allocator>
+struct has_trivial_destructor_after_move<boost::container::vector<T, Allocator> >
+{
+   typedef typename ::boost::container::allocator_traits<Allocator>::pointer pointer;
+   static const bool value = ::boost::has_trivial_destructor_after_move<Allocator>::value &&
+                             ::boost::has_trivial_destructor_after_move<pointer>::value;
+};
+
+}
+*/
+#endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+#include <boost/container/detail/config_end.hpp>
+
+#endif //   #ifndef  BOOST_CONTAINER_CONTAINER_SMALL_VECTOR_HPP