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Diffstat (limited to 'contrib/src/boost/container/vector.hpp')
| -rw-r--r-- | contrib/src/boost/container/vector.hpp | 3398 |
1 files changed, 3398 insertions, 0 deletions
diff --git a/contrib/src/boost/container/vector.hpp b/contrib/src/boost/container/vector.hpp new file mode 100644 index 0000000..fabe92d --- /dev/null +++ b/contrib/src/boost/container/vector.hpp @@ -0,0 +1,3398 @@ +////////////////////////////////////////////////////////////////////////////// +// +// (C) Copyright Ion Gaztanaga 2005-2015. 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_VECTOR_HPP +#define BOOST_CONTAINER_CONTAINER_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/allocator_traits.hpp> +#include <boost/container/new_allocator.hpp> //new_allocator +#include <boost/container/throw_exception.hpp> +// container detail +#include <boost/container/detail/advanced_insert_int.hpp> +#include <boost/container/detail/algorithm.hpp> //equal() +#include <boost/container/detail/alloc_helpers.hpp> +#include <boost/container/detail/allocation_type.hpp> +#include <boost/container/detail/copy_move_algo.hpp> +#include <boost/container/detail/destroyers.hpp> +#include <boost/container/detail/iterator.hpp> +#include <boost/container/detail/iterators.hpp> +#include <boost/container/detail/iterator_to_raw_pointer.hpp> +#include <boost/container/detail/mpl.hpp> +#include <boost/container/detail/next_capacity.hpp> +#include <boost/container/detail/to_raw_pointer.hpp> +#include <boost/container/detail/type_traits.hpp> +#include <boost/container/detail/version_type.hpp> +// intrusive +#include <boost/intrusive/pointer_traits.hpp> +// move +#include <boost/move/adl_move_swap.hpp> +#include <boost/move/iterator.hpp> +#include <boost/move/traits.hpp> +#include <boost/move/utility_core.hpp> +// move/detail +#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) +#include <boost/move/detail/fwd_macros.hpp> +#endif +#include <boost/move/detail/move_helpers.hpp> +// other +#include <boost/core/no_exceptions_support.hpp> +#include <boost/assert.hpp> +#include <boost/cstdint.hpp> + +//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 + +//#define BOOST_CONTAINER_VECTOR_ITERATOR_IS_POINTER + +namespace container_detail { + +#ifndef BOOST_CONTAINER_VECTOR_ITERATOR_IS_POINTER + +template <class Pointer, bool IsConst> +class vec_iterator +{ + public: + typedef std::random_access_iterator_tag iterator_category; + typedef typename boost::intrusive::pointer_traits<Pointer>::element_type value_type; + typedef typename boost::intrusive::pointer_traits<Pointer>::difference_type difference_type; + typedef typename if_c + < IsConst + , typename boost::intrusive::pointer_traits<Pointer>::template + rebind_pointer<const value_type>::type + , Pointer + >::type pointer; + typedef typename boost::intrusive::pointer_traits<pointer> ptr_traits; + typedef typename ptr_traits::reference reference; + + #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + private: + Pointer m_ptr; + + public: + BOOST_CONTAINER_FORCEINLINE const Pointer &get_ptr() const BOOST_NOEXCEPT_OR_NOTHROW + { return m_ptr; } + + BOOST_CONTAINER_FORCEINLINE Pointer &get_ptr() BOOST_NOEXCEPT_OR_NOTHROW + { return m_ptr; } + + BOOST_CONTAINER_FORCEINLINE explicit vec_iterator(Pointer ptr) BOOST_NOEXCEPT_OR_NOTHROW + : m_ptr(ptr) + {} + #endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + + public: + + //Constructors + BOOST_CONTAINER_FORCEINLINE vec_iterator() BOOST_NOEXCEPT_OR_NOTHROW + : m_ptr() //Value initialization to achieve "null iterators" (N3644) + {} + + BOOST_CONTAINER_FORCEINLINE vec_iterator(vec_iterator<Pointer, false> const& other) BOOST_NOEXCEPT_OR_NOTHROW + : m_ptr(other.get_ptr()) + {} + + //Pointer like operators + BOOST_CONTAINER_FORCEINLINE reference operator*() const BOOST_NOEXCEPT_OR_NOTHROW + { return *m_ptr; } + + BOOST_CONTAINER_FORCEINLINE pointer operator->() const BOOST_NOEXCEPT_OR_NOTHROW + { return ::boost::intrusive::pointer_traits<pointer>::pointer_to(this->operator*()); } + + BOOST_CONTAINER_FORCEINLINE reference operator[](difference_type off) const BOOST_NOEXCEPT_OR_NOTHROW + { return m_ptr[off]; } + + //Increment / Decrement + BOOST_CONTAINER_FORCEINLINE vec_iterator& operator++() BOOST_NOEXCEPT_OR_NOTHROW + { ++m_ptr; return *this; } + + BOOST_CONTAINER_FORCEINLINE vec_iterator operator++(int) BOOST_NOEXCEPT_OR_NOTHROW + { return vec_iterator(m_ptr++); } + + BOOST_CONTAINER_FORCEINLINE vec_iterator& operator--() BOOST_NOEXCEPT_OR_NOTHROW + { --m_ptr; return *this; } + + BOOST_CONTAINER_FORCEINLINE vec_iterator operator--(int) BOOST_NOEXCEPT_OR_NOTHROW + { return vec_iterator(m_ptr--); } + + //Arithmetic + BOOST_CONTAINER_FORCEINLINE vec_iterator& operator+=(difference_type off) BOOST_NOEXCEPT_OR_NOTHROW + { m_ptr += off; return *this; } + + BOOST_CONTAINER_FORCEINLINE vec_iterator& operator-=(difference_type off) BOOST_NOEXCEPT_OR_NOTHROW + { m_ptr -= off; return *this; } + + BOOST_CONTAINER_FORCEINLINE friend vec_iterator operator+(const vec_iterator &x, difference_type off) BOOST_NOEXCEPT_OR_NOTHROW + { return vec_iterator(x.m_ptr+off); } + + BOOST_CONTAINER_FORCEINLINE friend vec_iterator operator+(difference_type off, vec_iterator right) BOOST_NOEXCEPT_OR_NOTHROW + { right.m_ptr += off; return right; } + + BOOST_CONTAINER_FORCEINLINE friend vec_iterator operator-(vec_iterator left, difference_type off) BOOST_NOEXCEPT_OR_NOTHROW + { left.m_ptr -= off; return left; } + + BOOST_CONTAINER_FORCEINLINE friend difference_type operator-(const vec_iterator &left, const vec_iterator& right) BOOST_NOEXCEPT_OR_NOTHROW + { return left.m_ptr - right.m_ptr; } + + //Comparison operators + BOOST_CONTAINER_FORCEINLINE friend bool operator== (const vec_iterator& l, const vec_iterator& r) BOOST_NOEXCEPT_OR_NOTHROW + { return l.m_ptr == r.m_ptr; } + + BOOST_CONTAINER_FORCEINLINE friend bool operator!= (const vec_iterator& l, const vec_iterator& r) BOOST_NOEXCEPT_OR_NOTHROW + { return l.m_ptr != r.m_ptr; } + + BOOST_CONTAINER_FORCEINLINE friend bool operator< (const vec_iterator& l, const vec_iterator& r) BOOST_NOEXCEPT_OR_NOTHROW + { return l.m_ptr < r.m_ptr; } + + BOOST_CONTAINER_FORCEINLINE friend bool operator<= (const vec_iterator& l, const vec_iterator& r) BOOST_NOEXCEPT_OR_NOTHROW + { return l.m_ptr <= r.m_ptr; } + + BOOST_CONTAINER_FORCEINLINE friend bool operator> (const vec_iterator& l, const vec_iterator& r) BOOST_NOEXCEPT_OR_NOTHROW + { return l.m_ptr > r.m_ptr; } + + BOOST_CONTAINER_FORCEINLINE friend bool operator>= (const vec_iterator& l, const vec_iterator& r) BOOST_NOEXCEPT_OR_NOTHROW + { return l.m_ptr >= r.m_ptr; } +}; + +template<class BiDirPosConstIt, class BiDirValueIt> +struct vector_insert_ordered_cursor +{ + typedef typename iterator_traits<BiDirPosConstIt>::value_type size_type; + typedef typename iterator_traits<BiDirValueIt>::reference reference; + + BOOST_CONTAINER_FORCEINLINE vector_insert_ordered_cursor(BiDirPosConstIt posit, BiDirValueIt valueit) + : last_position_it(posit), last_value_it(valueit) + {} + + void operator --() + { + --last_value_it; + --last_position_it; + while(this->get_pos() == size_type(-1)){ + --last_value_it; + --last_position_it; + } + } + + BOOST_CONTAINER_FORCEINLINE size_type get_pos() const + { return *last_position_it; } + + BOOST_CONTAINER_FORCEINLINE reference get_val() + { return *last_value_it; } + + BiDirPosConstIt last_position_it; + BiDirValueIt last_value_it; +}; + +template<class T, class SizeType, class BiDirValueIt, class Comp> +struct vector_merge_cursor +{ + typedef SizeType size_type; + typedef typename iterator_traits<BiDirValueIt>::reference reference; + + BOOST_CONTAINER_FORCEINLINE vector_merge_cursor(T *pbeg, T *plast, BiDirValueIt valueit, Comp &cmp) + : m_pbeg(pbeg), m_pcur(--plast), m_valueit(valueit), m_cmp(cmp) + {} + + void operator --() + { + --m_valueit; + const T &t = *m_valueit; + while((m_pcur + 1) != m_pbeg){ + if(!m_cmp(t, *m_pcur)){ + break; + } + --m_pcur; + } + } + + BOOST_CONTAINER_FORCEINLINE size_type get_pos() const + { return static_cast<size_type>((m_pcur + 1) - m_pbeg); } + + BOOST_CONTAINER_FORCEINLINE reference get_val() + { return *m_valueit; } + + T *const m_pbeg; + T *m_pcur; + BiDirValueIt m_valueit; + Comp &m_cmp; +}; + +} //namespace container_detail { + +template<class Pointer, bool IsConst> +BOOST_CONTAINER_FORCEINLINE const Pointer &vector_iterator_get_ptr(const container_detail::vec_iterator<Pointer, IsConst> &it) BOOST_NOEXCEPT_OR_NOTHROW +{ return it.get_ptr(); } + +template<class Pointer, bool IsConst> +BOOST_CONTAINER_FORCEINLINE Pointer &get_ptr(container_detail::vec_iterator<Pointer, IsConst> &it) BOOST_NOEXCEPT_OR_NOTHROW +{ return it.get_ptr(); } + +namespace container_detail { + +#else //ifndef BOOST_CONTAINER_VECTOR_ITERATOR_IS_POINTER + +template< class MaybeConstPointer + , bool ElementTypeIsConst + = is_const< typename boost::intrusive::pointer_traits<MaybeConstPointer>::element_type>::value > +struct vector_get_ptr_pointer_to_non_const +{ + typedef MaybeConstPointer const_pointer; + typedef boost::intrusive::pointer_traits<const_pointer> pointer_traits_t; + typedef typename pointer_traits_t::element_type element_type; + typedef typename remove_const<element_type>::type non_const_element_type; + typedef typename pointer_traits_t + ::template rebind_pointer<non_const_element_type>::type return_type; + + BOOST_CONTAINER_FORCEINLINE static return_type get_ptr(const const_pointer &ptr) BOOST_NOEXCEPT_OR_NOTHROW + { return boost::intrusive::pointer_traits<return_type>::const_cast_from(ptr); } +}; + +template<class Pointer> +struct vector_get_ptr_pointer_to_non_const<Pointer, false> +{ + typedef const Pointer & return_type; + BOOST_CONTAINER_FORCEINLINE static return_type get_ptr(const Pointer &ptr) BOOST_NOEXCEPT_OR_NOTHROW + { return ptr; } +}; + +} //namespace container_detail { + +template<class MaybeConstPointer> +BOOST_CONTAINER_FORCEINLINE typename container_detail::vector_get_ptr_pointer_to_non_const<MaybeConstPointer>::return_type + vector_iterator_get_ptr(const MaybeConstPointer &ptr) BOOST_NOEXCEPT_OR_NOTHROW +{ + return container_detail::vector_get_ptr_pointer_to_non_const<MaybeConstPointer>::get_ptr(ptr); +} + +namespace container_detail { + +#endif //#ifndef BOOST_CONTAINER_VECTOR_ITERATOR_IS_POINTER + +struct uninitialized_size_t {}; +static const uninitialized_size_t uninitialized_size = uninitialized_size_t(); + +template <class T> +struct vector_value_traits_base +{ + static const bool trivial_dctr = is_trivially_destructible<T>::value; + static const bool trivial_dctr_after_move = has_trivial_destructor_after_move<T>::value; + static const bool trivial_copy = is_trivially_copy_constructible<T>::value; + static const bool nothrow_copy = is_nothrow_copy_constructible<T>::value || trivial_copy; + static const bool trivial_assign = is_trivially_copy_assignable<T>::value; + static const bool nothrow_assign = is_nothrow_copy_assignable<T>::value || trivial_assign; +}; + + +template <class Allocator> +struct vector_value_traits + : public vector_value_traits_base<typename Allocator::value_type> +{ + typedef vector_value_traits_base<typename Allocator::value_type> base_t; + //This is the anti-exception array destructor + //to deallocate values already constructed + typedef typename container_detail::if_c + <base_t::trivial_dctr + ,container_detail::null_scoped_destructor_n<Allocator> + ,container_detail::scoped_destructor_n<Allocator> + >::type ArrayDestructor; + //This is the anti-exception array deallocator + typedef container_detail::scoped_array_deallocator<Allocator> ArrayDeallocator; +}; + +//!This struct deallocates and allocated memory +template < class Allocator + , class AllocatorVersion = typename container_detail::version<Allocator>::type + > +struct vector_alloc_holder + : public Allocator +{ + private: + BOOST_MOVABLE_BUT_NOT_COPYABLE(vector_alloc_holder) + + public: + typedef Allocator allocator_type; + typedef boost::container::allocator_traits<Allocator> allocator_traits_type; + typedef typename allocator_traits_type::pointer pointer; + typedef typename allocator_traits_type::size_type size_type; + typedef typename allocator_traits_type::value_type value_type; + + static bool is_propagable_from(const allocator_type &from_alloc, pointer p, const allocator_type &to_alloc, bool const propagate_allocator) + { + (void)propagate_allocator; (void)p; (void)to_alloc; (void)from_alloc; + const bool all_storage_propagable = !allocator_traits_type::is_partially_propagable::value || + !allocator_traits_type::storage_is_unpropagable(from_alloc, p); + return all_storage_propagable && (propagate_allocator || allocator_traits_type::equal(from_alloc, to_alloc)); + } + + static bool are_swap_propagable(const allocator_type &l_a, pointer l_p, const allocator_type &r_a, pointer r_p, bool const propagate_allocator) + { + (void)propagate_allocator; (void)l_p; (void)r_p; (void)l_a; (void)r_a; + const bool all_storage_propagable = !allocator_traits_type::is_partially_propagable::value || + !(allocator_traits_type::storage_is_unpropagable(l_a, l_p) || allocator_traits_type::storage_is_unpropagable(r_a, r_p)); + return all_storage_propagable && (propagate_allocator || allocator_traits_type::equal(l_a, r_a)); + } + + //Constructor, does not throw + vector_alloc_holder() + BOOST_NOEXCEPT_IF(container_detail::is_nothrow_default_constructible<Allocator>::value) + : Allocator(), m_start(), m_size(), m_capacity() + {} + + //Constructor, does not throw + template<class AllocConvertible> + explicit vector_alloc_holder(BOOST_FWD_REF(AllocConvertible) a) BOOST_NOEXCEPT_OR_NOTHROW + : Allocator(boost::forward<AllocConvertible>(a)), m_start(), m_size(), m_capacity() + {} + + //Constructor, does not throw + template<class AllocConvertible> + vector_alloc_holder(uninitialized_size_t, BOOST_FWD_REF(AllocConvertible) a, size_type initial_size) + : Allocator(boost::forward<AllocConvertible>(a)) + , m_start() + , m_size(initial_size) //Size is initialized here so vector should only call uninitialized_xxx after this + , m_capacity() + { + if(initial_size){ + pointer reuse = 0; + m_start = this->allocation_command(allocate_new, initial_size, m_capacity = initial_size, reuse); + } + } + + //Constructor, does not throw + vector_alloc_holder(uninitialized_size_t, size_type initial_size) + : Allocator() + , m_start() + , m_size(initial_size) //Size is initialized here so vector should only call uninitialized_xxx after this + , m_capacity() + { + if(initial_size){ + pointer reuse = 0; + m_start = this->allocation_command(allocate_new, initial_size, m_capacity = initial_size, reuse); + } + } + + vector_alloc_holder(BOOST_RV_REF(vector_alloc_holder) holder) BOOST_NOEXCEPT_OR_NOTHROW + : Allocator(BOOST_MOVE_BASE(Allocator, holder)) + , m_start(holder.m_start) + , m_size(holder.m_size) + , m_capacity(holder.m_capacity) + { + holder.m_start = pointer(); + holder.m_size = holder.m_capacity = 0; + } + + vector_alloc_holder(pointer p, size_type capacity, BOOST_RV_REF(vector_alloc_holder) holder) + : Allocator(BOOST_MOVE_BASE(Allocator, holder)) + , m_start(p) + , m_size(holder.m_size) + , m_capacity(capacity) + { + allocator_type &this_alloc = this->alloc(); + allocator_type &x_alloc = holder.alloc(); + if(this->is_propagable_from(x_alloc, holder.start(), this_alloc, true)){ + if(this->m_capacity){ + this->alloc().deallocate(this->m_start, this->m_capacity); + } + m_start = holder.m_start; + m_capacity = holder.m_capacity; + holder.m_start = pointer(); + holder.m_capacity = holder.m_size = 0; + } + else if(this->m_capacity < holder.m_size){ + size_type const n = holder.m_size; + pointer reuse = pointer(); + m_start = this->allocation_command(allocate_new, n, m_capacity = n, reuse); + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += n != 0; + #endif + } + } + + vector_alloc_holder(pointer p, size_type n) + BOOST_NOEXCEPT_IF(container_detail::is_nothrow_default_constructible<Allocator>::value) + : Allocator() + , m_start(p) + , m_size() + , m_capacity(n) + {} + + template<class AllocFwd> + vector_alloc_holder(pointer p, size_type n, BOOST_FWD_REF(AllocFwd) a) + : Allocator(::boost::forward<AllocFwd>(a)) + , m_start(p) + , m_size() + , m_capacity(n) + {} + + BOOST_CONTAINER_FORCEINLINE ~vector_alloc_holder() BOOST_NOEXCEPT_OR_NOTHROW + { + if(this->m_capacity){ + this->alloc().deallocate(this->m_start, this->m_capacity); + } + } + + BOOST_CONTAINER_FORCEINLINE pointer allocation_command(boost::container::allocation_type command, + size_type limit_size, size_type &prefer_in_recvd_out_size, pointer &reuse) + { + typedef typename container_detail::version<Allocator>::type alloc_version; + return this->priv_allocation_command(alloc_version(), command, limit_size, prefer_in_recvd_out_size, reuse); + } + + bool try_expand_fwd(size_type at_least) + { + //There is not enough memory, try to expand the old one + const size_type new_cap = this->capacity() + at_least; + size_type real_cap = new_cap; + pointer reuse = this->start(); + bool const success = !!this->allocation_command(expand_fwd, new_cap, real_cap, reuse); + //Check for forward expansion + if(success){ + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_expand_fwd; + #endif + this->capacity(real_cap); + } + return success; + } + + BOOST_CONTAINER_FORCEINLINE size_type next_capacity(size_type additional_objects) const + { + return next_capacity_calculator + <size_type, NextCapacityDouble //NextCapacity60Percent + >::get( allocator_traits_type::max_size(this->alloc()) + , this->m_capacity, additional_objects ); + } + + pointer m_start; + size_type m_size; + size_type m_capacity; + + void swap_resources(vector_alloc_holder &x) BOOST_NOEXCEPT_OR_NOTHROW + { + boost::adl_move_swap(this->m_start, x.m_start); + boost::adl_move_swap(this->m_size, x.m_size); + boost::adl_move_swap(this->m_capacity, x.m_capacity); + } + + void steal_resources(vector_alloc_holder &x) BOOST_NOEXCEPT_OR_NOTHROW + { + this->m_start = x.m_start; + this->m_size = x.m_size; + this->m_capacity = x.m_capacity; + x.m_start = pointer(); + x.m_size = x.m_capacity = 0; + } + + BOOST_CONTAINER_FORCEINLINE Allocator &alloc() BOOST_NOEXCEPT_OR_NOTHROW + { return *this; } + + BOOST_CONTAINER_FORCEINLINE const Allocator &alloc() const BOOST_NOEXCEPT_OR_NOTHROW + { return *this; } + + const pointer &start() const BOOST_NOEXCEPT_OR_NOTHROW { return m_start; } + const size_type &capacity() const BOOST_NOEXCEPT_OR_NOTHROW { return m_capacity; } + void start(const pointer &p) BOOST_NOEXCEPT_OR_NOTHROW { m_start = p; } + void capacity(const size_type &c) BOOST_NOEXCEPT_OR_NOTHROW { m_capacity = c; } + + private: + void priv_first_allocation(size_type cap) + { + if(cap){ + pointer reuse = 0; + m_start = this->allocation_command(allocate_new, cap, cap, reuse); + m_capacity = cap; + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_alloc; + #endif + } + } + + BOOST_CONTAINER_FORCEINLINE pointer priv_allocation_command(version_1, boost::container::allocation_type command, + size_type , + size_type &prefer_in_recvd_out_size, + pointer &reuse) + { + (void)command; + BOOST_ASSERT( (command & allocate_new)); + BOOST_ASSERT(!(command & nothrow_allocation)); + pointer const p = allocator_traits_type::allocate(this->alloc(), prefer_in_recvd_out_size, reuse); + reuse = pointer(); + return p; + } + + pointer priv_allocation_command(version_2, boost::container::allocation_type command, + size_type limit_size, + size_type &prefer_in_recvd_out_size, + pointer &reuse) + { + return this->alloc().allocation_command(command, limit_size, prefer_in_recvd_out_size, reuse); + } +}; + +//!This struct deallocates and allocated memory +template <class Allocator> +struct vector_alloc_holder<Allocator, version_0> + : public Allocator +{ + private: + BOOST_MOVABLE_BUT_NOT_COPYABLE(vector_alloc_holder) + + public: + typedef boost::container::allocator_traits<Allocator> allocator_traits_type; + typedef typename allocator_traits_type::pointer pointer; + typedef typename allocator_traits_type::size_type size_type; + typedef typename allocator_traits_type::value_type value_type; + + template <class OtherAllocator, class OtherAllocatorVersion> + friend struct vector_alloc_holder; + + //Constructor, does not throw + vector_alloc_holder() + BOOST_NOEXCEPT_IF(container_detail::is_nothrow_default_constructible<Allocator>::value) + : Allocator(), m_size() + {} + + //Constructor, does not throw + template<class AllocConvertible> + explicit vector_alloc_holder(BOOST_FWD_REF(AllocConvertible) a) BOOST_NOEXCEPT_OR_NOTHROW + : Allocator(boost::forward<AllocConvertible>(a)), m_size() + {} + + //Constructor, does not throw + template<class AllocConvertible> + vector_alloc_holder(uninitialized_size_t, BOOST_FWD_REF(AllocConvertible) a, size_type initial_size) + : Allocator(boost::forward<AllocConvertible>(a)) + , m_size(initial_size) //Size is initialized here... + { + //... and capacity here, so vector, must call uninitialized_xxx in the derived constructor + this->priv_first_allocation(initial_size); + } + + //Constructor, does not throw + vector_alloc_holder(uninitialized_size_t, size_type initial_size) + : Allocator() + , m_size(initial_size) //Size is initialized here... + { + //... and capacity here, so vector, must call uninitialized_xxx in the derived constructor + this->priv_first_allocation(initial_size); + } + + vector_alloc_holder(BOOST_RV_REF(vector_alloc_holder) holder) + : Allocator(BOOST_MOVE_BASE(Allocator, holder)) + , m_size(holder.m_size) //Size is initialized here so vector should only call uninitialized_xxx after this + { + ::boost::container::uninitialized_move_alloc_n + (this->alloc(), container_detail::to_raw_pointer(holder.start()), m_size, container_detail::to_raw_pointer(this->start())); + } + + template<class OtherAllocator, class OtherAllocatorVersion> + vector_alloc_holder(BOOST_RV_REF_BEG vector_alloc_holder<OtherAllocator, OtherAllocatorVersion> BOOST_RV_REF_END holder) + : Allocator() + , m_size(holder.m_size) //Initialize it to m_size as first_allocation can only succeed or abort + { + //Different allocator type so we must check we have enough storage + const size_type n = holder.m_size; + this->priv_first_allocation(n); + ::boost::container::uninitialized_move_alloc_n + (this->alloc(), container_detail::to_raw_pointer(holder.start()), n, container_detail::to_raw_pointer(this->start())); + } + + BOOST_CONTAINER_FORCEINLINE void priv_first_allocation(size_type cap) + { + if(cap > Allocator::internal_capacity){ + throw_bad_alloc(); + } + } + + BOOST_CONTAINER_FORCEINLINE void deep_swap(vector_alloc_holder &x) + { + this->priv_deep_swap(x); + } + + template<class OtherAllocator, class OtherAllocatorVersion> + void deep_swap(vector_alloc_holder<OtherAllocator, OtherAllocatorVersion> &x) + { + if(this->m_size > OtherAllocator::internal_capacity || x.m_size > Allocator::internal_capacity){ + throw_bad_alloc(); + } + this->priv_deep_swap(x); + } + + BOOST_CONTAINER_FORCEINLINE void swap_resources(vector_alloc_holder &) BOOST_NOEXCEPT_OR_NOTHROW + { //Containers with version 0 allocators can't be moved without moving elements one by one + throw_bad_alloc(); + } + + + BOOST_CONTAINER_FORCEINLINE void steal_resources(vector_alloc_holder &) + { //Containers with version 0 allocators can't be moved without moving elements one by one + throw_bad_alloc(); + } + + BOOST_CONTAINER_FORCEINLINE Allocator &alloc() BOOST_NOEXCEPT_OR_NOTHROW + { return *this; } + + BOOST_CONTAINER_FORCEINLINE const Allocator &alloc() const BOOST_NOEXCEPT_OR_NOTHROW + { return *this; } + + BOOST_CONTAINER_FORCEINLINE bool try_expand_fwd(size_type at_least) + { return !at_least; } + + BOOST_CONTAINER_FORCEINLINE pointer start() const BOOST_NOEXCEPT_OR_NOTHROW { return Allocator::internal_storage(); } + BOOST_CONTAINER_FORCEINLINE size_type capacity() const BOOST_NOEXCEPT_OR_NOTHROW { return Allocator::internal_capacity; } + size_type m_size; + + private: + + template<class OtherAllocator, class OtherAllocatorVersion> + void priv_deep_swap(vector_alloc_holder<OtherAllocator, OtherAllocatorVersion> &x) + { + const size_type MaxTmpStorage = sizeof(value_type)*Allocator::internal_capacity; + value_type *const first_this = container_detail::to_raw_pointer(this->start()); + value_type *const first_x = container_detail::to_raw_pointer(x.start()); + + if(this->m_size < x.m_size){ + boost::container::deep_swap_alloc_n<MaxTmpStorage>(this->alloc(), first_this, this->m_size, first_x, x.m_size); + } + else{ + boost::container::deep_swap_alloc_n<MaxTmpStorage>(this->alloc(), first_x, x.m_size, first_this, this->m_size); + } + boost::adl_move_swap(this->m_size, x.m_size); + } +}; + +} //namespace container_detail { + +#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + +//! A vector is a sequence that supports random access to elements, constant +//! time insertion and removal of elements at the end, and linear time insertion +//! and removal of elements at the beginning or in the middle. The number of +//! elements in a vector may vary dynamically; memory management is automatic. +//! +//! \tparam T The type of object that is stored in the vector +//! \tparam Allocator The allocator used for all internal memory management +template <class T, class Allocator BOOST_CONTAINER_DOCONLY(= new_allocator<T>) > +class vector +{ + #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + + struct value_less + { + typedef typename boost::container::allocator_traits<Allocator>::value_type value_type; + bool operator()(const value_type &a, const value_type &b) const + { return a < b; } + }; + + typedef typename container_detail::version<Allocator>::type alloc_version; + typedef boost::container::container_detail::vector_alloc_holder<Allocator> alloc_holder_t; + alloc_holder_t m_holder; + typedef allocator_traits<Allocator> allocator_traits_type; + template <class U, class UAllocator> + friend class vector; + + typedef typename allocator_traits_type::pointer pointer_impl; + typedef container_detail::vec_iterator<pointer_impl, false> iterator_impl; + typedef container_detail::vec_iterator<pointer_impl, true > const_iterator_impl; + + protected: + static bool is_propagable_from(const Allocator &from_alloc, pointer_impl p, const Allocator &to_alloc, bool const propagate_allocator) + { return alloc_holder_t::is_propagable_from(from_alloc, p, to_alloc, propagate_allocator); } + + static bool are_swap_propagable( const Allocator &l_a, pointer_impl l_p + , const Allocator &r_a, pointer_impl r_p, bool const propagate_allocator) + { return alloc_holder_t::are_swap_propagable(l_a, l_p, r_a, r_p, propagate_allocator); } + + #endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + public: + ////////////////////////////////////////////// + // + // types + // + ////////////////////////////////////////////// + + typedef T value_type; + typedef typename ::boost::container::allocator_traits<Allocator>::pointer pointer; + typedef typename ::boost::container::allocator_traits<Allocator>::const_pointer const_pointer; + typedef typename ::boost::container::allocator_traits<Allocator>::reference reference; + typedef typename ::boost::container::allocator_traits<Allocator>::const_reference const_reference; + typedef typename ::boost::container::allocator_traits<Allocator>::size_type size_type; + typedef typename ::boost::container::allocator_traits<Allocator>::difference_type difference_type; + typedef Allocator allocator_type; + typedef Allocator stored_allocator_type; + #if defined BOOST_CONTAINER_VECTOR_ITERATOR_IS_POINTER + typedef BOOST_CONTAINER_IMPDEF(pointer) iterator; + typedef BOOST_CONTAINER_IMPDEF(const_pointer) const_iterator; + #else + typedef BOOST_CONTAINER_IMPDEF(iterator_impl) iterator; + typedef BOOST_CONTAINER_IMPDEF(const_iterator_impl) const_iterator; + #endif + typedef BOOST_CONTAINER_IMPDEF(boost::container::reverse_iterator<iterator>) reverse_iterator; + typedef BOOST_CONTAINER_IMPDEF(boost::container::reverse_iterator<const_iterator>) const_reverse_iterator; + + #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + private: + BOOST_COPYABLE_AND_MOVABLE(vector) + typedef container_detail::vector_value_traits<Allocator> value_traits; + typedef constant_iterator<T, difference_type> cvalue_iterator; + + protected: + + BOOST_CONTAINER_FORCEINLINE void steal_resources(vector &x) + { return this->m_holder.steal_resources(x.m_holder); } + + struct initial_capacity_t{}; + template<class AllocFwd> + BOOST_CONTAINER_FORCEINLINE vector(initial_capacity_t, pointer initial_memory, size_type capacity, BOOST_FWD_REF(AllocFwd) a) + : m_holder(initial_memory, capacity, ::boost::forward<AllocFwd>(a)) + {} + + BOOST_CONTAINER_FORCEINLINE vector(initial_capacity_t, pointer initial_memory, size_type capacity) + : m_holder(initial_memory, capacity) + {} + + #endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + + public: + ////////////////////////////////////////////// + // + // construct/copy/destroy + // + ////////////////////////////////////////////// + + //! <b>Effects</b>: Constructs a vector taking the allocator as parameter. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + vector() BOOST_NOEXCEPT_OR_NOTHROW + : m_holder() + {} + + //! <b>Effects</b>: Constructs a vector taking the allocator as parameter. + //! + //! <b>Throws</b>: Nothing + //! + //! <b>Complexity</b>: Constant. + explicit vector(const allocator_type& a) BOOST_NOEXCEPT_OR_NOTHROW + : m_holder(a) + {} + + //! <b>Effects</b>: Constructs a vector and inserts n value initialized values. + //! + //! <b>Throws</b>: If allocator_type's allocation + //! throws or T's value initialization throws. + //! + //! <b>Complexity</b>: Linear to n. + explicit vector(size_type n) + : m_holder(container_detail::uninitialized_size, n) + { + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += n != 0; + #endif + boost::container::uninitialized_value_init_alloc_n + (this->m_holder.alloc(), n, this->priv_raw_begin()); + } + + //! <b>Effects</b>: Constructs a vector that will use a copy of allocator a + //! and inserts n value initialized values. + //! + //! <b>Throws</b>: If allocator_type's allocation + //! throws or T's value initialization throws. + //! + //! <b>Complexity</b>: Linear to n. + explicit vector(size_type n, const allocator_type &a) + : m_holder(container_detail::uninitialized_size, a, n) + { + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += n != 0; + #endif + boost::container::uninitialized_value_init_alloc_n + (this->m_holder.alloc(), n, this->priv_raw_begin()); + } + + //! <b>Effects</b>: Constructs a vector that will use a copy of allocator a + //! and inserts n default initialized values. + //! + //! <b>Throws</b>: If allocator_type's allocation + //! throws or T's default initialization throws. + //! + //! <b>Complexity</b>: Linear to n. + //! + //! <b>Note</b>: Non-standard extension + vector(size_type n, default_init_t) + : m_holder(container_detail::uninitialized_size, n) + { + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += n != 0; + #endif + boost::container::uninitialized_default_init_alloc_n + (this->m_holder.alloc(), n, this->priv_raw_begin()); + } + + //! <b>Effects</b>: Constructs a vector that will use a copy of allocator a + //! and inserts n default initialized values. + //! + //! <b>Throws</b>: If allocator_type's allocation + //! throws or T's default initialization throws. + //! + //! <b>Complexity</b>: Linear to n. + //! + //! <b>Note</b>: Non-standard extension + vector(size_type n, default_init_t, const allocator_type &a) + : m_holder(container_detail::uninitialized_size, a, n) + { + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += n != 0; + #endif + boost::container::uninitialized_default_init_alloc_n + (this->m_holder.alloc(), n, this->priv_raw_begin()); + } + + //! <b>Effects</b>: Constructs a vector + //! and inserts n copies of value. + //! + //! <b>Throws</b>: If allocator_type's allocation + //! throws or T's copy constructor throws. + //! + //! <b>Complexity</b>: Linear to n. + vector(size_type n, const T& value) + : m_holder(container_detail::uninitialized_size, n) + { + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += n != 0; + #endif + boost::container::uninitialized_fill_alloc_n + (this->m_holder.alloc(), value, n, this->priv_raw_begin()); + } + + //! <b>Effects</b>: Constructs a vector that will use a copy of allocator a + //! and inserts n copies of value. + //! + //! <b>Throws</b>: If allocation + //! throws or T's copy constructor throws. + //! + //! <b>Complexity</b>: Linear to n. + vector(size_type n, const T& value, const allocator_type& a) + : m_holder(container_detail::uninitialized_size, a, n) + { + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += n != 0; + #endif + boost::container::uninitialized_fill_alloc_n + (this->m_holder.alloc(), value, n, this->priv_raw_begin()); + } + + //! <b>Effects</b>: Constructs a vector + //! and inserts a copy of the range [first, last) in the vector. + //! + //! <b>Throws</b>: If allocator_type's allocation + //! throws or T's constructor taking a dereferenced InIt throws. + //! + //! <b>Complexity</b>: Linear to the range [first, last). + template <class InIt> + vector(InIt first, InIt last + BOOST_CONTAINER_DOCIGN(BOOST_MOVE_I typename container_detail::disable_if_c + < container_detail::is_convertible<InIt BOOST_MOVE_I size_type>::value + BOOST_MOVE_I container_detail::nat >::type * = 0) + ) + : m_holder() + { this->assign(first, last); } + + //! <b>Effects</b>: Constructs a vector that will use a copy of allocator a + //! and inserts a copy of the range [first, last) in the vector. + //! + //! <b>Throws</b>: If allocator_type's allocation + //! throws or T's constructor taking a dereferenced InIt throws. + //! + //! <b>Complexity</b>: Linear to the range [first, last). + template <class InIt> + vector(InIt first, InIt last, const allocator_type& a + BOOST_CONTAINER_DOCIGN(BOOST_MOVE_I typename container_detail::disable_if_c + < container_detail::is_convertible<InIt BOOST_MOVE_I size_type>::value + BOOST_MOVE_I container_detail::nat >::type * = 0) + ) + : m_holder(a) + { this->assign(first, last); } + + //! <b>Effects</b>: Copy constructs a vector. + //! + //! <b>Postcondition</b>: x == *this. + //! + //! <b>Throws</b>: If allocator_type's allocation + //! throws or T's copy constructor throws. + //! + //! <b>Complexity</b>: Linear to the elements x contains. + vector(const vector &x) + : m_holder( container_detail::uninitialized_size + , allocator_traits_type::select_on_container_copy_construction(x.m_holder.alloc()) + , x.size()) + { + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += x.size() != 0; + #endif + ::boost::container::uninitialized_copy_alloc_n + ( this->m_holder.alloc(), x.priv_raw_begin() + , x.size(), this->priv_raw_begin()); + } + + //! <b>Effects</b>: Move constructor. Moves x's resources to *this. + //! + //! <b>Throws</b>: Nothing + //! + //! <b>Complexity</b>: Constant. + vector(BOOST_RV_REF(vector) x) BOOST_NOEXCEPT_OR_NOTHROW + : m_holder(boost::move(x.m_holder)) + { BOOST_STATIC_ASSERT((!allocator_traits_type::is_partially_propagable::value)); } + + #if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST) + //! <b>Effects</b>: Constructs a vector that will use a copy of allocator a + //! and inserts a copy of the range [il.begin(), il.last()) in the vector + //! + //! <b>Throws</b>: If T's constructor taking a dereferenced initializer_list iterator throws. + //! + //! <b>Complexity</b>: Linear to the range [il.begin(), il.end()). + vector(std::initializer_list<value_type> il, const allocator_type& a = allocator_type()) + : m_holder(a) + { + this->assign(il.begin(), il.end()); + } + #endif + + #if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED) + + //! <b>Effects</b>: Move constructor. Moves x's resources to *this. + //! + //! <b>Throws</b>: If T's move constructor or allocation throws + //! + //! <b>Complexity</b>: Linear. + //! + //! <b>Note</b>: Non-standard extension to support static_vector + template<class OtherAllocator> + vector(BOOST_RV_REF_BEG vector<T, OtherAllocator> BOOST_RV_REF_END x + , typename container_detail::enable_if_c + < container_detail::is_version<OtherAllocator, 0>::value>::type * = 0 + ) + : m_holder(boost::move(x.m_holder)) + {} + + #endif //!defined(BOOST_CONTAINER_DOXYGEN_INVOKED) + + //! <b>Effects</b>: Copy constructs a vector using the specified allocator. + //! + //! <b>Postcondition</b>: x == *this. + //! + //! <b>Throws</b>: If allocation + //! throws or T's copy constructor throws. + //! + //! <b>Complexity</b>: Linear to the elements x contains. + vector(const vector &x, const allocator_type &a) + : m_holder(container_detail::uninitialized_size, a, x.size()) + { + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += x.size() != 0; + #endif + ::boost::container::uninitialized_copy_alloc_n_source + ( this->m_holder.alloc(), x.priv_raw_begin() + , x.size(), this->priv_raw_begin()); + } + + //! <b>Effects</b>: Move constructor using the specified allocator. + //! Moves x's resources to *this if a == allocator_type(). + //! Otherwise copies values from x to *this. + //! + //! <b>Throws</b>: If allocation or T's copy constructor throws. + //! + //! <b>Complexity</b>: Constant if a == x.get_allocator(), linear otherwise. + vector(BOOST_RV_REF(vector) x, const allocator_type &a) + : m_holder( container_detail::uninitialized_size, a + , is_propagable_from(x.get_stored_allocator(), x.m_holder.start(), a, true) ? 0 : x.size() + ) + { + if(is_propagable_from(x.get_stored_allocator(), x.m_holder.start(), a, true)){ + this->m_holder.steal_resources(x.m_holder); + } + else{ + const size_type n = x.size(); + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + this->num_alloc += n != 0; + #endif + ::boost::container::uninitialized_move_alloc_n_source + ( this->m_holder.alloc(), x.priv_raw_begin() + , n, this->priv_raw_begin()); + } + } + + //! <b>Effects</b>: Destroys the vector. All stored values are destroyed + //! and used memory is deallocated. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements. + ~vector() BOOST_NOEXCEPT_OR_NOTHROW + { + boost::container::destroy_alloc_n + (this->get_stored_allocator(), this->priv_raw_begin(), this->m_holder.m_size); + //vector_alloc_holder deallocates the data + } + + //! <b>Effects</b>: Makes *this contain the same elements as x. + //! + //! <b>Postcondition</b>: this->size() == x.size(). *this contains a copy + //! of each of x's elements. + //! + //! <b>Throws</b>: If memory allocation throws or T's copy/move constructor/assignment throws. + //! + //! <b>Complexity</b>: Linear to the number of elements in x. + BOOST_CONTAINER_FORCEINLINE vector& operator=(BOOST_COPY_ASSIGN_REF(vector) x) + { + if (&x != this){ + this->priv_copy_assign(x); + } + return *this; + } + + #if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST) + //! <b>Effects</b>: Make *this container contains elements from il. + //! + //! <b>Complexity</b>: Linear to the range [il.begin(), il.end()). + BOOST_CONTAINER_FORCEINLINE vector& operator=(std::initializer_list<value_type> il) + { + this->assign(il.begin(), il.end()); + return *this; + } + #endif + + //! <b>Effects</b>: Move assignment. All x's values are transferred to *this. + //! + //! <b>Postcondition</b>: x.empty(). *this contains a the elements x had + //! before the function. + //! + //! <b>Throws</b>: If allocator_traits_type::propagate_on_container_move_assignment + //! is false and (allocation throws or value_type's move constructor throws) + //! + //! <b>Complexity</b>: Constant if allocator_traits_type:: + //! propagate_on_container_move_assignment is true or + //! this->get>allocator() == x.get_allocator(). Linear otherwise. + BOOST_CONTAINER_FORCEINLINE vector& operator=(BOOST_RV_REF(vector) x) + BOOST_NOEXCEPT_IF(allocator_traits_type::propagate_on_container_move_assignment::value + || allocator_traits_type::is_always_equal::value) + { + BOOST_ASSERT(&x != this); + this->priv_move_assign(boost::move(x)); + return *this; + } + + #if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED) + + //! <b>Effects</b>: Move assignment. All x's values are transferred to *this. + //! + //! <b>Postcondition</b>: x.empty(). *this contains a the elements x had + //! before the function. + //! + //! <b>Throws</b>: If move constructor/assignment of T throws or allocation throws + //! + //! <b>Complexity</b>: Linear. + //! + //! <b>Note</b>: Non-standard extension to support static_vector + template<class OtherAllocator> + BOOST_CONTAINER_FORCEINLINE typename container_detail::enable_if_and + < vector& + , container_detail::is_version<OtherAllocator, 0> + , container_detail::is_different<OtherAllocator, allocator_type> + >::type + operator=(BOOST_RV_REF_BEG vector<value_type, OtherAllocator> BOOST_RV_REF_END x) + { + this->priv_move_assign(boost::move(x)); + return *this; + } + + //! <b>Effects</b>: Copy assignment. All x's values are copied to *this. + //! + //! <b>Postcondition</b>: x.empty(). *this contains a the elements x had + //! before the function. + //! + //! <b>Throws</b>: If move constructor/assignment of T throws or allocation throws + //! + //! <b>Complexity</b>: Linear. + //! + //! <b>Note</b>: Non-standard extension to support static_vector + template<class OtherAllocator> + BOOST_CONTAINER_FORCEINLINE typename container_detail::enable_if_and + < vector& + , container_detail::is_version<OtherAllocator, 0> + , container_detail::is_different<OtherAllocator, allocator_type> + >::type + operator=(const vector<value_type, OtherAllocator> &x) + { + this->priv_copy_assign(x); + return *this; + } + + #endif + + //! <b>Effects</b>: Assigns the the range [first, last) to *this. + //! + //! <b>Throws</b>: If memory allocation throws or T's copy/move constructor/assignment or + //! T's constructor/assignment from dereferencing InpIt throws. + //! + //! <b>Complexity</b>: Linear to n. + template <class InIt> + void assign(InIt first, InIt last + BOOST_CONTAINER_DOCIGN(BOOST_MOVE_I typename container_detail::disable_if_or + < void + BOOST_MOVE_I container_detail::is_convertible<InIt BOOST_MOVE_I size_type> + BOOST_MOVE_I container_detail::and_ + < container_detail::is_different<alloc_version BOOST_MOVE_I version_0> + BOOST_MOVE_I container_detail::is_not_input_iterator<InIt> + > + >::type * = 0) + ) + { + //Overwrite all elements we can from [first, last) + iterator cur = this->begin(); + const iterator end_it = this->end(); + for ( ; first != last && cur != end_it; ++cur, ++first){ + *cur = *first; + } + + if (first == last){ + //There are no more elements in the sequence, erase remaining + T* const end_pos = this->priv_raw_end(); + const size_type n = static_cast<size_type>(end_pos - container_detail::iterator_to_raw_pointer(cur)); + this->priv_destroy_last_n(n); + } + else{ + //There are more elements in the range, insert the remaining ones + this->insert(this->cend(), first, last); + } + } + + #if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST) + //! <b>Effects</b>: Assigns the the range [il.begin(), il.end()) to *this. + //! + //! <b>Throws</b>: If memory allocation throws or + //! T's constructor from dereferencing iniializer_list iterator throws. + //! + BOOST_CONTAINER_FORCEINLINE void assign(std::initializer_list<T> il) + { + this->assign(il.begin(), il.end()); + } + #endif + + //! <b>Effects</b>: Assigns the the range [first, last) to *this. + //! + //! <b>Throws</b>: If memory allocation throws or T's copy/move constructor/assignment or + //! T's constructor/assignment from dereferencing InpIt throws. + //! + //! <b>Complexity</b>: Linear to n. + template <class FwdIt> + void assign(FwdIt first, FwdIt last + BOOST_CONTAINER_DOCIGN(BOOST_MOVE_I typename container_detail::disable_if_or + < void + BOOST_MOVE_I container_detail::is_same<alloc_version BOOST_MOVE_I version_0> + BOOST_MOVE_I container_detail::is_convertible<FwdIt BOOST_MOVE_I size_type> + BOOST_MOVE_I container_detail::is_input_iterator<FwdIt> + >::type * = 0) + ) + { + //For Fwd iterators the standard only requires EmplaceConstructible and assignable from *first + //so we can't do any backwards allocation + const size_type input_sz = static_cast<size_type>(boost::container::iterator_distance(first, last)); + const size_type old_capacity = this->capacity(); + if(input_sz > old_capacity){ //If input range is too big, we need to reallocate + size_type real_cap = 0; + pointer reuse(this->m_holder.start()); + pointer const ret(this->m_holder.allocation_command(allocate_new|expand_fwd, input_sz, real_cap = input_sz, reuse)); + if(!reuse){ //New allocation, just emplace new values + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_alloc; + #endif + pointer const old_p = this->m_holder.start(); + if(old_p){ + this->priv_destroy_all(); + this->m_holder.alloc().deallocate(old_p, old_capacity); + } + this->m_holder.start(ret); + this->m_holder.capacity(real_cap); + this->m_holder.m_size = 0; + this->priv_uninitialized_construct_at_end(first, last); + return; + } + else{ + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_expand_fwd; + #endif + this->m_holder.capacity(real_cap); + //Forward expansion, use assignment + back deletion/construction that comes later + } + } + //Overwrite all elements we can from [first, last) + iterator cur = this->begin(); + const iterator end_it = this->end(); + for ( ; first != last && cur != end_it; ++cur, ++first){ + *cur = *first; + } + + if (first == last){ + //There are no more elements in the sequence, erase remaining + this->priv_destroy_last_n(this->size() - input_sz); + } + else{ + //Uninitialized construct at end the remaining range + this->priv_uninitialized_construct_at_end(first, last); + } + } + + //! <b>Effects</b>: Assigns the n copies of val to *this. + //! + //! <b>Throws</b>: If memory allocation throws or + //! T's copy/move constructor/assignment throws. + //! + //! <b>Complexity</b>: Linear to n. + BOOST_CONTAINER_FORCEINLINE void assign(size_type n, const value_type& val) + { this->assign(cvalue_iterator(val, n), cvalue_iterator()); } + + //! <b>Effects</b>: Returns a copy of the internal allocator. + //! + //! <b>Throws</b>: If allocator's copy constructor throws. + //! + //! <b>Complexity</b>: Constant. + allocator_type get_allocator() const BOOST_NOEXCEPT_OR_NOTHROW + { return this->m_holder.alloc(); } + + //! <b>Effects</b>: Returns a reference to the internal allocator. + //! + //! <b>Throws</b>: Nothing + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Non-standard extension. + BOOST_CONTAINER_FORCEINLINE stored_allocator_type &get_stored_allocator() BOOST_NOEXCEPT_OR_NOTHROW + { return this->m_holder.alloc(); } + + //! <b>Effects</b>: Returns a reference to the internal allocator. + //! + //! <b>Throws</b>: Nothing + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Non-standard extension. + BOOST_CONTAINER_FORCEINLINE const stored_allocator_type &get_stored_allocator() const BOOST_NOEXCEPT_OR_NOTHROW + { return this->m_holder.alloc(); } + + ////////////////////////////////////////////// + // + // iterators + // + ////////////////////////////////////////////// + + //! <b>Effects</b>: Returns an iterator to the first element contained in the vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE iterator begin() BOOST_NOEXCEPT_OR_NOTHROW + { return iterator(this->m_holder.start()); } + + //! <b>Effects</b>: Returns a const_iterator to the first element contained in the vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE const_iterator begin() const BOOST_NOEXCEPT_OR_NOTHROW + { return const_iterator(this->m_holder.start()); } + + //! <b>Effects</b>: Returns an iterator to the end of the vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE iterator end() BOOST_NOEXCEPT_OR_NOTHROW + { return iterator(this->m_holder.start() + this->m_holder.m_size); } + + //! <b>Effects</b>: Returns a const_iterator to the end of the vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE const_iterator end() const BOOST_NOEXCEPT_OR_NOTHROW + { return this->cend(); } + + //! <b>Effects</b>: Returns a reverse_iterator pointing to the beginning + //! of the reversed vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE reverse_iterator rbegin() BOOST_NOEXCEPT_OR_NOTHROW + { return reverse_iterator(this->end()); } + + //! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning + //! of the reversed vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE const_reverse_iterator rbegin() const BOOST_NOEXCEPT_OR_NOTHROW + { return this->crbegin(); } + + //! <b>Effects</b>: Returns a reverse_iterator pointing to the end + //! of the reversed vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE reverse_iterator rend() BOOST_NOEXCEPT_OR_NOTHROW + { return reverse_iterator(this->begin()); } + + //! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end + //! of the reversed vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE const_reverse_iterator rend() const BOOST_NOEXCEPT_OR_NOTHROW + { return this->crend(); } + + //! <b>Effects</b>: Returns a const_iterator to the first element contained in the vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE const_iterator cbegin() const BOOST_NOEXCEPT_OR_NOTHROW + { return const_iterator(this->m_holder.start()); } + + //! <b>Effects</b>: Returns a const_iterator to the end of the vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE const_iterator cend() const BOOST_NOEXCEPT_OR_NOTHROW + { return const_iterator(this->m_holder.start() + this->m_holder.m_size); } + + //! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning + //! of the reversed vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE const_reverse_iterator crbegin() const BOOST_NOEXCEPT_OR_NOTHROW + { return const_reverse_iterator(this->end());} + + //! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end + //! of the reversed vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE const_reverse_iterator crend() const BOOST_NOEXCEPT_OR_NOTHROW + { return const_reverse_iterator(this->begin()); } + + ////////////////////////////////////////////// + // + // capacity + // + ////////////////////////////////////////////// + + //! <b>Effects</b>: Returns true if the vector contains no elements. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE bool empty() const BOOST_NOEXCEPT_OR_NOTHROW + { return !this->m_holder.m_size; } + + //! <b>Effects</b>: Returns the number of the elements contained in the vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE size_type size() const BOOST_NOEXCEPT_OR_NOTHROW + { return this->m_holder.m_size; } + + //! <b>Effects</b>: Returns the largest possible size of the vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE size_type max_size() const BOOST_NOEXCEPT_OR_NOTHROW + { return allocator_traits_type::max_size(this->m_holder.alloc()); } + + //! <b>Effects</b>: Inserts or erases elements at the end such that + //! the size becomes n. New elements are value initialized. + //! + //! <b>Throws</b>: If memory allocation throws, or T's copy/move or value initialization throws. + //! + //! <b>Complexity</b>: Linear to the difference between size() and new_size. + void resize(size_type new_size) + { this->priv_resize(new_size, value_init); } + + //! <b>Effects</b>: Inserts or erases elements at the end such that + //! the size becomes n. New elements are default initialized. + //! + //! <b>Throws</b>: If memory allocation throws, or T's copy/move or default initialization throws. + //! + //! <b>Complexity</b>: Linear to the difference between size() and new_size. + //! + //! <b>Note</b>: Non-standard extension + void resize(size_type new_size, default_init_t) + { this->priv_resize(new_size, default_init); } + + //! <b>Effects</b>: Inserts or erases elements at the end such that + //! the size becomes n. New elements are copy constructed from x. + //! + //! <b>Throws</b>: If memory allocation throws, or T's copy/move constructor throws. + //! + //! <b>Complexity</b>: Linear to the difference between size() and new_size. + void resize(size_type new_size, const T& x) + { this->priv_resize(new_size, x); } + + //! <b>Effects</b>: Number of elements for which memory has been allocated. + //! capacity() is always greater than or equal to size(). + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + BOOST_CONTAINER_FORCEINLINE size_type capacity() const BOOST_NOEXCEPT_OR_NOTHROW + { return this->m_holder.capacity(); } + + //! <b>Effects</b>: If n is less than or equal to capacity(), this call has no + //! effect. Otherwise, it is a request for allocation of additional memory. + //! If the request is successful, then capacity() is greater than or equal to + //! n; otherwise, capacity() is unchanged. In either case, size() is unchanged. + //! + //! <b>Throws</b>: If memory allocation allocation throws or T's copy/move constructor throws. + BOOST_CONTAINER_FORCEINLINE void reserve(size_type new_cap) + { + if (this->capacity() < new_cap){ + this->priv_reserve_no_capacity(new_cap, alloc_version()); + } + } + + //! <b>Effects</b>: Tries to deallocate the excess of memory created + //! with previous allocations. The size of the vector is unchanged + //! + //! <b>Throws</b>: If memory allocation throws, or T's copy/move constructor throws. + //! + //! <b>Complexity</b>: Linear to size(). + BOOST_CONTAINER_FORCEINLINE void shrink_to_fit() + { this->priv_shrink_to_fit(alloc_version()); } + + ////////////////////////////////////////////// + // + // element access + // + ////////////////////////////////////////////// + + //! <b>Requires</b>: !empty() + //! + //! <b>Effects</b>: Returns a reference to the first + //! element of the container. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + reference front() BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(!this->empty()); + return *this->m_holder.start(); + } + + //! <b>Requires</b>: !empty() + //! + //! <b>Effects</b>: Returns a const reference to the first + //! element of the container. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_reference front() const BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(!this->empty()); + return *this->m_holder.start(); + } + + //! <b>Requires</b>: !empty() + //! + //! <b>Effects</b>: Returns a reference to the last + //! element of the container. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + reference back() BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(!this->empty()); + return this->m_holder.start()[this->m_holder.m_size - 1]; + } + + //! <b>Requires</b>: !empty() + //! + //! <b>Effects</b>: Returns a const reference to the last + //! element of the container. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_reference back() const BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(!this->empty()); + return this->m_holder.start()[this->m_holder.m_size - 1]; + } + + //! <b>Requires</b>: size() > n. + //! + //! <b>Effects</b>: Returns a reference to the nth element + //! from the beginning of the container. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + reference operator[](size_type n) BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(this->m_holder.m_size > n); + return this->m_holder.start()[n]; + } + + //! <b>Requires</b>: size() > n. + //! + //! <b>Effects</b>: Returns a const reference to the nth element + //! from the beginning of the container. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_reference operator[](size_type n) const BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(this->m_holder.m_size > n); + return this->m_holder.start()[n]; + } + + //! <b>Requires</b>: size() >= n. + //! + //! <b>Effects</b>: Returns an iterator to the nth element + //! from the beginning of the container. Returns end() + //! if n == size(). + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Non-standard extension + iterator nth(size_type n) BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(this->m_holder.m_size >= n); + return iterator(this->m_holder.start()+n); + } + + //! <b>Requires</b>: size() >= n. + //! + //! <b>Effects</b>: Returns a const_iterator to the nth element + //! from the beginning of the container. Returns end() + //! if n == size(). + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Non-standard extension + const_iterator nth(size_type n) const BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(this->m_holder.m_size >= n); + return const_iterator(this->m_holder.start()+n); + } + + //! <b>Requires</b>: size() >= n. + //! + //! <b>Effects</b>: Returns an iterator to the nth element + //! from the beginning of the container. Returns end() + //! if n == size(). + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Non-standard extension + size_type index_of(iterator p) BOOST_NOEXCEPT_OR_NOTHROW + { + //Range check assert done in priv_index_of + return this->priv_index_of(vector_iterator_get_ptr(p)); + } + + //! <b>Requires</b>: begin() <= p <= end(). + //! + //! <b>Effects</b>: Returns the index of the element pointed by p + //! and size() if p == end(). + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Non-standard extension + size_type index_of(const_iterator p) const BOOST_NOEXCEPT_OR_NOTHROW + { + //Range check assert done in priv_index_of + return this->priv_index_of(vector_iterator_get_ptr(p)); + } + + //! <b>Requires</b>: size() > n. + //! + //! <b>Effects</b>: Returns a reference to the nth element + //! from the beginning of the container. + //! + //! <b>Throws</b>: std::range_error if n >= size() + //! + //! <b>Complexity</b>: Constant. + reference at(size_type n) + { + this->priv_throw_if_out_of_range(n); + return this->m_holder.start()[n]; + } + + //! <b>Requires</b>: size() > n. + //! + //! <b>Effects</b>: Returns a const reference to the nth element + //! from the beginning of the container. + //! + //! <b>Throws</b>: std::range_error if n >= size() + //! + //! <b>Complexity</b>: Constant. + const_reference at(size_type n) const + { + this->priv_throw_if_out_of_range(n); + return this->m_holder.start()[n]; + } + + ////////////////////////////////////////////// + // + // data access + // + ////////////////////////////////////////////// + + //! <b>Returns</b>: A pointer such that [data(),data() + size()) is a valid range. + //! For a non-empty vector, data() == &front(). + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + T* data() BOOST_NOEXCEPT_OR_NOTHROW + { return this->priv_raw_begin(); } + + //! <b>Returns</b>: A pointer such that [data(),data() + size()) is a valid range. + //! For a non-empty vector, data() == &front(). + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const T * data() const BOOST_NOEXCEPT_OR_NOTHROW + { return this->priv_raw_begin(); } + + ////////////////////////////////////////////// + // + // modifiers + // + ////////////////////////////////////////////// + + #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED) + //! <b>Effects</b>: Inserts an object of type T constructed with + //! std::forward<Args>(args)... in the end of the vector. + //! + //! <b>Throws</b>: If memory allocation throws or the in-place constructor throws or + //! T's copy/move constructor throws. + //! + //! <b>Complexity</b>: Amortized constant time. + template<class ...Args> + BOOST_CONTAINER_FORCEINLINE void emplace_back(BOOST_FWD_REF(Args)...args) + { + if (BOOST_LIKELY(this->room_enough())){ + //There is more memory, just construct a new object at the end + allocator_traits_type::construct(this->m_holder.alloc(), this->priv_raw_end(), ::boost::forward<Args>(args)...); + ++this->m_holder.m_size; + } + else{ + typedef container_detail::insert_emplace_proxy<Allocator, T*, Args...> type; + this->priv_forward_range_insert_no_capacity + (this->back_ptr(), 1, type(::boost::forward<Args>(args)...), alloc_version()); + } + } + + //! <b>Effects</b>: Inserts an object of type T constructed with + //! std::forward<Args>(args)... in the end of the vector. + //! + //! <b>Throws</b>: If the in-place constructor throws. + //! + //! <b>Complexity</b>: Constant time. + //! + //! <b>Note</b>: Non-standard extension. + template<class ...Args> + BOOST_CONTAINER_FORCEINLINE bool stable_emplace_back(BOOST_FWD_REF(Args)...args) + { + const bool is_room_enough = this->room_enough() || (alloc_version::value == 2 && this->m_holder.try_expand_fwd(1u)); + if (BOOST_LIKELY(is_room_enough)){ + //There is more memory, just construct a new object at the end + allocator_traits_type::construct(this->m_holder.alloc(), this->priv_raw_end(), ::boost::forward<Args>(args)...); + ++this->m_holder.m_size; + } + return is_room_enough; + } + + //! <b>Requires</b>: position must be a valid iterator of *this. + //! + //! <b>Effects</b>: Inserts an object of type T constructed with + //! std::forward<Args>(args)... before position + //! + //! <b>Throws</b>: If memory allocation throws or the in-place constructor throws or + //! T's copy/move constructor/assignment throws. + //! + //! <b>Complexity</b>: If position is end(), amortized constant time + //! Linear time otherwise. + template<class ...Args> + iterator emplace(const_iterator position, BOOST_FWD_REF(Args) ...args) + { + BOOST_ASSERT(this->priv_in_range_or_end(position)); + //Just call more general insert(pos, size, value) and return iterator + typedef container_detail::insert_emplace_proxy<Allocator, T*, Args...> type; + return this->priv_forward_range_insert( vector_iterator_get_ptr(position), 1 + , type(::boost::forward<Args>(args)...)); + } + + #else // !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) + + #define BOOST_CONTAINER_VECTOR_EMPLACE_CODE(N) \ + BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \ + BOOST_CONTAINER_FORCEINLINE void emplace_back(BOOST_MOVE_UREF##N)\ + {\ + if (BOOST_LIKELY(this->room_enough())){\ + allocator_traits_type::construct (this->m_holder.alloc()\ + , this->priv_raw_end() BOOST_MOVE_I##N BOOST_MOVE_FWD##N);\ + ++this->m_holder.m_size;\ + }\ + else{\ + typedef container_detail::insert_emplace_proxy_arg##N<Allocator, T* BOOST_MOVE_I##N BOOST_MOVE_TARG##N> type;\ + this->priv_forward_range_insert_no_capacity\ + ( this->back_ptr(), 1, type(BOOST_MOVE_FWD##N), alloc_version());\ + }\ + }\ + \ + BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \ + BOOST_CONTAINER_FORCEINLINE bool stable_emplace_back(BOOST_MOVE_UREF##N)\ + {\ + const bool is_room_enough = this->room_enough() || (alloc_version::value == 2 && this->m_holder.try_expand_fwd(1u));\ + if (BOOST_LIKELY(is_room_enough)){\ + allocator_traits_type::construct (this->m_holder.alloc()\ + , this->priv_raw_end() BOOST_MOVE_I##N BOOST_MOVE_FWD##N);\ + ++this->m_holder.m_size;\ + }\ + return is_room_enough;\ + }\ + \ + BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \ + iterator emplace(const_iterator pos BOOST_MOVE_I##N BOOST_MOVE_UREF##N)\ + {\ + BOOST_ASSERT(this->priv_in_range_or_end(pos));\ + typedef container_detail::insert_emplace_proxy_arg##N<Allocator, T* BOOST_MOVE_I##N BOOST_MOVE_TARG##N> type;\ + return this->priv_forward_range_insert(vector_iterator_get_ptr(pos), 1, type(BOOST_MOVE_FWD##N));\ + }\ + // + BOOST_MOVE_ITERATE_0TO9(BOOST_CONTAINER_VECTOR_EMPLACE_CODE) + #undef BOOST_CONTAINER_VECTOR_EMPLACE_CODE + + #endif + + #if defined(BOOST_CONTAINER_DOXYGEN_INVOKED) + //! <b>Effects</b>: Inserts a copy of x at the end of the vector. + //! + //! <b>Throws</b>: If memory allocation throws or + //! T's copy/move constructor throws. + //! + //! <b>Complexity</b>: Amortized constant time. + void push_back(const T &x); + + //! <b>Effects</b>: Constructs a new element in the end of the vector + //! and moves the resources of x to this new element. + //! + //! <b>Throws</b>: If memory allocation throws or + //! T's copy/move constructor throws. + //! + //! <b>Complexity</b>: Amortized constant time. + void push_back(T &&x); + #else + BOOST_CONTAINER_FORCEINLINE BOOST_MOVE_CONVERSION_AWARE_CATCH(push_back, T, void, priv_push_back) + #endif + + #if defined(BOOST_CONTAINER_DOXYGEN_INVOKED) + //! <b>Requires</b>: position must be a valid iterator of *this. + //! + //! <b>Effects</b>: Insert a copy of x before position. + //! + //! <b>Throws</b>: If memory allocation throws or T's copy/move constructor/assignment throws. + //! + //! <b>Complexity</b>: If position is end(), amortized constant time + //! Linear time otherwise. + iterator insert(const_iterator position, const T &x); + + //! <b>Requires</b>: position must be a valid iterator of *this. + //! + //! <b>Effects</b>: Insert a new element before position with x's resources. + //! + //! <b>Throws</b>: If memory allocation throws. + //! + //! <b>Complexity</b>: If position is end(), amortized constant time + //! Linear time otherwise. + iterator insert(const_iterator position, T &&x); + #else + BOOST_MOVE_CONVERSION_AWARE_CATCH_1ARG(insert, T, iterator, priv_insert, const_iterator, const_iterator) + #endif + + //! <b>Requires</b>: p must be a valid iterator of *this. + //! + //! <b>Effects</b>: Insert n copies of x before pos. + //! + //! <b>Returns</b>: an iterator to the first inserted element or p if n is 0. + //! + //! <b>Throws</b>: If memory allocation throws or T's copy/move constructor throws. + //! + //! <b>Complexity</b>: Linear to n. + iterator insert(const_iterator p, size_type n, const T& x) + { + BOOST_ASSERT(this->priv_in_range_or_end(p)); + container_detail::insert_n_copies_proxy<Allocator, T*> proxy(x); + return this->priv_forward_range_insert(vector_iterator_get_ptr(p), n, proxy); + } + + //! <b>Requires</b>: p must be a valid iterator of *this. + //! + //! <b>Effects</b>: Insert a copy of the [first, last) range before pos. + //! + //! <b>Returns</b>: an iterator to the first inserted element or pos if first == last. + //! + //! <b>Throws</b>: If memory allocation throws, T's constructor from a + //! dereferenced InpIt throws or T's copy/move constructor/assignment throws. + //! + //! <b>Complexity</b>: Linear to boost::container::iterator_distance [first, last). + template <class InIt> + iterator insert(const_iterator pos, InIt first, InIt last + #if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED) + , typename container_detail::disable_if_or + < void + , container_detail::is_convertible<InIt, size_type> + , container_detail::is_not_input_iterator<InIt> + >::type * = 0 + #endif + ) + { + BOOST_ASSERT(this->priv_in_range_or_end(pos)); + const size_type n_pos = pos - this->cbegin(); + iterator it(vector_iterator_get_ptr(pos)); + for(;first != last; ++first){ + it = this->emplace(it, *first); + ++it; + } + return iterator(this->m_holder.start() + n_pos); + } + + #if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED) + template <class FwdIt> + iterator insert(const_iterator pos, FwdIt first, FwdIt last + , typename container_detail::disable_if_or + < void + , container_detail::is_convertible<FwdIt, size_type> + , container_detail::is_input_iterator<FwdIt> + >::type * = 0 + ) + { + BOOST_ASSERT(this->priv_in_range_or_end(pos)); + container_detail::insert_range_proxy<Allocator, FwdIt, T*> proxy(first); + return this->priv_forward_range_insert(vector_iterator_get_ptr(pos), boost::container::iterator_distance(first, last), proxy); + } + #endif + + //! <b>Requires</b>: p must be a valid iterator of *this. num, must + //! be equal to boost::container::iterator_distance(first, last) + //! + //! <b>Effects</b>: Insert a copy of the [first, last) range before pos. + //! + //! <b>Returns</b>: an iterator to the first inserted element or pos if first == last. + //! + //! <b>Throws</b>: If memory allocation throws, T's constructor from a + //! dereferenced InpIt throws or T's copy/move constructor/assignment throws. + //! + //! <b>Complexity</b>: Linear to boost::container::iterator_distance [first, last). + //! + //! <b>Note</b>: This function avoids a linear operation to calculate boost::container::iterator_distance[first, last) + //! for forward and bidirectional iterators, and a one by one insertion for input iterators. This is a + //! a non-standard extension. + #if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED) + template <class InIt> + iterator insert(const_iterator pos, size_type num, InIt first, InIt last) + { + BOOST_ASSERT(this->priv_in_range_or_end(pos)); + BOOST_ASSERT(container_detail::is_input_iterator<InIt>::value || + num == static_cast<size_type>(boost::container::iterator_distance(first, last))); + (void)last; + container_detail::insert_range_proxy<Allocator, InIt, T*> proxy(first); + return this->priv_forward_range_insert(vector_iterator_get_ptr(pos), num, proxy); + } + #endif + + #if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST) + //! <b>Requires</b>: position must be a valid iterator of *this. + //! + //! <b>Effects</b>: Insert a copy of the [il.begin(), il.end()) range before position. + //! + //! <b>Returns</b>: an iterator to the first inserted element or position if first == last. + //! + //! <b>Complexity</b>: Linear to the range [il.begin(), il.end()). + iterator insert(const_iterator position, std::initializer_list<value_type> il) + { + //Assertion done in insert() + return this->insert(position, il.begin(), il.end()); + } + #endif + + //! <b>Effects</b>: Removes the last element from the container. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant time. + void pop_back() BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(!this->empty()); + //Destroy last element + this->priv_destroy_last(); + } + + //! <b>Effects</b>: Erases the element at position pos. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the elements between pos and the + //! last element. Constant if pos is the last element. + iterator erase(const_iterator position) + { + BOOST_ASSERT(this->priv_in_range(position)); + const pointer p = vector_iterator_get_ptr(position); + T *const pos_ptr = container_detail::to_raw_pointer(p); + T *const beg_ptr = this->priv_raw_begin(); + T *const new_end_ptr = ::boost::container::move(pos_ptr + 1, beg_ptr + this->m_holder.m_size, pos_ptr); + //Move elements forward and destroy last + this->priv_destroy_last(pos_ptr == new_end_ptr); + return iterator(p); + } + + //! <b>Effects</b>: Erases the elements pointed by [first, last). + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the distance between first and last + //! plus linear to the elements between pos and the last element. + iterator erase(const_iterator first, const_iterator last) + { + BOOST_ASSERT(first == last || + (first < last && this->priv_in_range(first) && this->priv_in_range_or_end(last))); + if (first != last){ + T* const old_end_ptr = this->priv_raw_end(); + T* const first_ptr = container_detail::to_raw_pointer(vector_iterator_get_ptr(first)); + T* const last_ptr = container_detail::to_raw_pointer(vector_iterator_get_ptr(last)); + T* const ptr = container_detail::to_raw_pointer(boost::container::move(last_ptr, old_end_ptr, first_ptr)); + this->priv_destroy_last_n(old_end_ptr - ptr); + } + return iterator(vector_iterator_get_ptr(first)); + } + + //! <b>Effects</b>: Swaps the contents of *this and x. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + void swap(vector& x) + BOOST_NOEXCEPT_IF( ((allocator_traits_type::propagate_on_container_swap::value + || allocator_traits_type::is_always_equal::value) && + !container_detail::is_version<Allocator, 0>::value)) + { + this->priv_swap(x, container_detail::bool_<container_detail::is_version<Allocator, 0>::value>()); + } + + #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + + //! <b>Effects</b>: Swaps the contents of *this and x. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear + //! + //! <b>Note</b>: Non-standard extension to support static_vector + template<class OtherAllocator> + void swap(vector<T, OtherAllocator> & x + , typename container_detail::enable_if_and + < void + , container_detail::is_version<OtherAllocator, 0> + , container_detail::is_different<OtherAllocator, allocator_type> + >::type * = 0 + ) + { this->m_holder.deep_swap(x.m_holder); } + + #endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + + //! <b>Effects</b>: Erases all the elements of the vector. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements in the container. + void clear() BOOST_NOEXCEPT_OR_NOTHROW + { this->priv_destroy_all(); } + + //! <b>Effects</b>: Returns true if x and y are equal + //! + //! <b>Complexity</b>: Linear to the number of elements in the container. + friend bool operator==(const vector& x, const vector& y) + { return x.size() == y.size() && ::boost::container::algo_equal(x.begin(), x.end(), y.begin()); } + + //! <b>Effects</b>: Returns true if x and y are unequal + //! + //! <b>Complexity</b>: Linear to the number of elements in the container. + friend bool operator!=(const vector& x, const vector& y) + { return !(x == y); } + + //! <b>Effects</b>: Returns true if x is less than y + //! + //! <b>Complexity</b>: Linear to the number of elements in the container. + friend bool operator<(const vector& x, const vector& y) + { + const_iterator first1(x.cbegin()), first2(y.cbegin()); + const const_iterator last1(x.cend()), last2(y.cend()); + for ( ; (first1 != last1) && (first2 != last2); ++first1, ++first2 ) { + if (*first1 < *first2) return true; + if (*first2 < *first1) return false; + } + return (first1 == last1) && (first2 != last2); + } + + //! <b>Effects</b>: Returns true if x is greater than y + //! + //! <b>Complexity</b>: Linear to the number of elements in the container. + friend bool operator>(const vector& x, const vector& y) + { return y < x; } + + //! <b>Effects</b>: Returns true if x is equal or less than y + //! + //! <b>Complexity</b>: Linear to the number of elements in the container. + friend bool operator<=(const vector& x, const vector& y) + { return !(y < x); } + + //! <b>Effects</b>: Returns true if x is equal or greater than y + //! + //! <b>Complexity</b>: Linear to the number of elements in the container. + friend bool operator>=(const vector& x, const vector& y) + { return !(x < y); } + + //! <b>Effects</b>: x.swap(y) + //! + //! <b>Complexity</b>: Constant. + friend void swap(vector& x, vector& y) + { x.swap(y); } + + #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED + //! <b>Effects</b>: If n is less than or equal to capacity(), this call has no + //! effect. Otherwise, it is a request for allocation of additional memory + //! (memory expansion) that will not invalidate iterators. + //! If the request is successful, then capacity() is greater than or equal to + //! n; otherwise, capacity() is unchanged. In either case, size() is unchanged. + //! + //! <b>Throws</b>: If memory allocation allocation throws or T's copy/move constructor throws. + //! + //! <b>Note</b>: Non-standard extension. + bool stable_reserve(size_type new_cap) + { + const size_type cp = this->capacity(); + return cp >= new_cap || (alloc_version::value == 2 && this->m_holder.try_expand_fwd(new_cap - cp)); + } + + //Absolutely experimental. This function might change, disappear or simply crash! + template<class BiDirPosConstIt, class BiDirValueIt> + void insert_ordered_at(const size_type element_count, BiDirPosConstIt last_position_it, BiDirValueIt last_value_it) + { + typedef container_detail::vector_insert_ordered_cursor<BiDirPosConstIt, BiDirValueIt> inserter_t; + return this->priv_insert_ordered_at(element_count, inserter_t(last_position_it, last_value_it)); + } + + template<class BidirIt> + void merge(BidirIt first, BidirIt last) + { this->merge(first, last, value_less()); } + + template<class BidirIt, class Compare> + void merge(BidirIt first, BidirIt last, Compare comp) + { this->priv_merge(container_detail::false_type(), first, last, comp); } + + template<class BidirIt> + void merge_unique(BidirIt first, BidirIt last) + { this->priv_merge(container_detail::true_type(), first, last, value_less()); } + + template<class BidirIt, class Compare> + void merge_unique(BidirIt first, BidirIt last, Compare comp) + { this->priv_merge(container_detail::true_type(), first, last, comp); } + + private: + template<class PositionValue> + void priv_insert_ordered_at(const size_type element_count, PositionValue position_value) + { + const size_type old_size_pos = this->size(); + this->reserve(old_size_pos + element_count); + T* const begin_ptr = this->priv_raw_begin(); + size_type insertions_left = element_count; + size_type prev_pos = old_size_pos; + size_type old_hole_size = element_count; + + //Exception rollback. If any copy throws before the hole is filled, values + //already inserted/copied at the end of the buffer will be destroyed. + typename value_traits::ArrayDestructor past_hole_values_destroyer + (begin_ptr + old_size_pos + element_count, this->m_holder.alloc(), size_type(0u)); + //Loop for each insertion backwards, first moving the elements after the insertion point, + //then inserting the element. + while(insertions_left){ + --position_value; + size_type const pos = position_value.get_pos(); + BOOST_ASSERT(pos != size_type(-1) && pos <= old_size_pos && pos <= prev_pos); + //If needed shift the range after the insertion point and the previous insertion point. + //Function will take care if the shift crosses the size() boundary, using copy/move + //or uninitialized copy/move if necessary. + size_type new_hole_size = (pos != prev_pos) + ? priv_insert_ordered_at_shift_range(pos, prev_pos, this->size(), insertions_left) + : old_hole_size + ; + if(new_hole_size){ + //The hole was reduced by priv_insert_ordered_at_shift_range so expand exception rollback range backwards + past_hole_values_destroyer.increment_size_backwards(prev_pos - pos); + //Insert the new value in the hole + allocator_traits_type::construct(this->m_holder.alloc(), begin_ptr + pos + insertions_left - 1, position_value.get_val()); + if(--new_hole_size){ + //The hole was reduced by the new insertion by one + past_hole_values_destroyer.increment_size_backwards(size_type(1u)); + } + else{ + //Hole was just filled, disable exception rollback and change vector size + past_hole_values_destroyer.release(); + this->m_holder.m_size += element_count; + } + } + else{ + if(old_hole_size){ + //Hole was just filled by priv_insert_ordered_at_shift_range, disable exception rollback and change vector size + past_hole_values_destroyer.release(); + this->m_holder.m_size += element_count; + } + //Insert the new value in the already constructed range + begin_ptr[pos + insertions_left - 1] = position_value.get_val(); + } + --insertions_left; + old_hole_size = new_hole_size; + prev_pos = pos; + } + } + + template<class UniqueBool, class BidirIt, class Compare> + void priv_merge(UniqueBool, BidirIt first, BidirIt last, Compare comp) + { + size_type const n = static_cast<size_type>(boost::container::iterator_distance(first, last)); + size_type const s = this->size(); + if(BOOST_LIKELY(s)){ + size_type const c = this->capacity(); + size_type const free_c = (c - s); + //Use a new buffer if current one is too small for new elements, + //or there is no room for position indexes + if(free_c < n){ + size_type const new_size = s + n; + size_type new_cap = new_size; + pointer p = pointer(); + p = this->m_holder.allocation_command(allocate_new, new_size, new_cap, p); + this->priv_merge_in_new_buffer(UniqueBool(), first, n, comp, p, new_cap); + } + else if(!UniqueBool::value && free_c >= n){ + typedef container_detail::vector_merge_cursor<T, size_type, BidirIt, Compare> inserter_t; + T* const pbeg = this->priv_raw_begin(); + return this->priv_insert_ordered_at(n, inserter_t(pbeg, pbeg + s, last, comp)); + } + else{ //UniqueBool::value == true and free_c >= n + std::size_t remaining = n; + static const std::size_t PosCount = 64u; + size_type positions[PosCount]; + size_type *indexes = 0; + while(remaining){ + //Query for room to store indexes in the remaining buffer + uintptr_t const szt_align_mask = container_detail::alignment_of<size_type>::value - 1; + boost::uintptr_t const addr = boost::uintptr_t(this->priv_raw_begin() + s + n); + boost::uintptr_t const capaddr = boost::uintptr_t(this->priv_raw_begin() + c); + boost::uintptr_t const aligned_addr = (addr + szt_align_mask) & ~szt_align_mask; + indexes = reinterpret_cast<size_type *>(aligned_addr); + std::size_t index_capacity = (aligned_addr >= capaddr) ? 0u : (capaddr - addr)/sizeof(size_type); + + //Capacity is constant, we're not going to change it + if(index_capacity < PosCount){ + indexes = positions; + index_capacity = PosCount; + } + if(index_capacity > remaining) + index_capacity = remaining; + BidirIt limit = first; + boost::container::iterator_advance(limit, index_capacity); + this->priv_insert_ordered_range(UniqueBool(), index_capacity, first, limit, indexes, comp); + first = limit; + remaining -= index_capacity; + } + } + } + else{ + this->insert(this->cend(), n, first, last); + } + } + + template <class UniqueBool, class BidirIt, class Compare> + void priv_insert_ordered_range + (UniqueBool, size_type const n, BidirIt first, BidirIt const last, size_type positions[], Compare comp) + { + //Linear: at most N + M -1 comparisons + //Log: MlogN + //Average + //Linear: N + M - 2 + //Log: MlogN + //N+M - 2 + //N + //(N+M)/2 < MlogN + //(N/M+1)/2 <= logN + //bool const linear = !s || !n || (s <= n) || ((s+n)/n/2 < logN); + size_type const s = this->size(); + size_type remaining = n; + T* const pbeg = this->priv_raw_begin(); + T* const pend = pbeg + s; + T* pcur = pbeg; + size_type *position = positions; + size_type added_in_middle = 0; + if(first != last && pcur != pend){ + while(1){ + //maintain stability moving external values only if they are strictly less + if(comp(*first, *pcur)) { + *position = static_cast<size_type>(pcur - pbeg); + BOOST_ASSERT((position == positions) || (*(position-1) == size_type(-1)) || (*(position-1) <= *position)); + ++position; + ++added_in_middle; + --remaining; + if(++first == last) break; + } + else if(UniqueBool::value && !comp(*pcur, *first)){ + *position = size_type(-1); + ++position; + --remaining; + if(++first == last) break; + } + else{ + if(++pcur == pend) break; + } + } + } + this->insert_ordered_at(added_in_middle, position, first); + this->insert(this->cend(), remaining, first, last); + } + + template<class UniqueBool, class FwdIt, class Compare> + void priv_merge_in_new_buffer + (UniqueBool, FwdIt first, size_type n, Compare comp, pointer new_storage, size_type const new_cap) + { + BOOST_ASSERT((new_cap >= this->size() ) && (new_cap - this->size()) >= n); + allocator_type &a = this->m_holder.alloc(); + typename value_traits::ArrayDeallocator new_buffer_deallocator(new_storage, a, new_cap); + typename value_traits::ArrayDestructor new_values_destroyer(new_storage, a, 0u); + T* pbeg = this->priv_raw_begin(); + size_type const old_size = this->size(); + T* const pend = pbeg + old_size; + T* d_first = container_detail::to_raw_pointer(new_storage); + size_type added = n; + //Merge in new buffer loop + while(1){ + if(!n) { + ::boost::container::uninitialized_move_alloc(this->m_holder.alloc(), pbeg, pend, d_first); + break; + } + else if(pbeg == pend) { + ::boost::container::uninitialized_move_alloc_n(this->m_holder.alloc(), first, n, d_first); + break; + } + //maintain stability moving external values only if they are strictly less + else if(comp(*first, *pbeg)) { + allocator_traits_type::construct( this->m_holder.alloc(), d_first, ::boost::move(*first) ); + new_values_destroyer.increment_size(1u); + ++first; + --n; + ++d_first; + } + else if(UniqueBool::value && !comp(*pbeg, *first)){ + ++first; + --n; + --added; + } + else{ + allocator_traits_type::construct( this->m_holder.alloc(), d_first, ::boost::move(*pbeg) ); + new_values_destroyer.increment_size(1u); + ++pbeg; + ++d_first; + } + } + + //Nothrow operations + pointer const old_p = this->m_holder.start(); + size_type const old_cap = this->m_holder.capacity(); + boost::container::destroy_alloc_n(a, container_detail::to_raw_pointer(old_p), old_size); + a.deallocate(old_p, old_cap); + this->m_holder.m_size = old_size + added; + this->m_holder.start(new_storage); + this->m_holder.capacity(new_cap); + new_buffer_deallocator.release(); + new_values_destroyer.release(); + } + + bool room_enough() const + { return this->m_holder.m_size < this->m_holder.capacity(); } + + pointer back_ptr() const + { return this->m_holder.start() + this->m_holder.m_size; } + + size_type priv_index_of(pointer p) const + { + BOOST_ASSERT(this->m_holder.start() <= p); + BOOST_ASSERT(p <= (this->m_holder.start()+this->size())); + return static_cast<size_type>(p - this->m_holder.start()); + } + + template<class OtherAllocator> + void priv_move_assign(BOOST_RV_REF_BEG vector<T, OtherAllocator> BOOST_RV_REF_END x + , typename container_detail::enable_if_c + < container_detail::is_version<OtherAllocator, 0>::value >::type * = 0) + { + if(!container_detail::is_same<OtherAllocator, allocator_type>::value && + this->capacity() < x.size()){ + throw_bad_alloc(); + } + T* const this_start = this->priv_raw_begin(); + T* const other_start = x.priv_raw_begin(); + const size_type this_sz = m_holder.m_size; + const size_type other_sz = static_cast<size_type>(x.m_holder.m_size); + boost::container::move_assign_range_alloc_n(this->m_holder.alloc(), other_start, other_sz, this_start, this_sz); + this->m_holder.m_size = other_sz; + } + + template<class OtherAllocator> + void priv_move_assign(BOOST_RV_REF_BEG vector<T, OtherAllocator> BOOST_RV_REF_END x + , typename container_detail::disable_if_or + < void + , container_detail::is_version<OtherAllocator, 0> + , container_detail::is_different<OtherAllocator, allocator_type> + >::type * = 0) + { + //for move assignment, no aliasing (&x != this) is assummed. + BOOST_ASSERT(this != &x); + allocator_type &this_alloc = this->m_holder.alloc(); + allocator_type &x_alloc = x.m_holder.alloc(); + const bool propagate_alloc = allocator_traits_type::propagate_on_container_move_assignment::value; + + const bool is_propagable_from_x = is_propagable_from(x_alloc, x.m_holder.start(), this_alloc, propagate_alloc); + const bool is_propagable_from_t = is_propagable_from(this_alloc, m_holder.start(), x_alloc, propagate_alloc); + const bool are_both_propagable = is_propagable_from_x && is_propagable_from_t; + + //Resources can be transferred if both allocators are + //going to be equal after this function (either propagated or already equal) + if(are_both_propagable){ + //Destroy objects but retain memory in case x reuses it in the future + this->clear(); + this->m_holder.swap_resources(x.m_holder); + } + else if(is_propagable_from_x){ + this->clear(); + this->m_holder.alloc().deallocate(this->m_holder.m_start, this->m_holder.m_capacity); + this->m_holder.steal_resources(x.m_holder); + } + //Else do a one by one move + 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() )) + ); + } + //Move allocator if needed + container_detail::move_alloc(this_alloc, x_alloc, container_detail::bool_<propagate_alloc>()); + } + + template<class OtherAllocator> + void priv_copy_assign(const vector<T, OtherAllocator> &x + , typename container_detail::enable_if_c + < container_detail::is_version<OtherAllocator, 0>::value >::type * = 0) + { + if(!container_detail::is_same<OtherAllocator, allocator_type>::value && + this->capacity() < x.size()){ + throw_bad_alloc(); + } + T* const this_start = this->priv_raw_begin(); + T* const other_start = x.priv_raw_begin(); + const size_type this_sz = m_holder.m_size; + const size_type other_sz = static_cast<size_type>(x.m_holder.m_size); + boost::container::copy_assign_range_alloc_n(this->m_holder.alloc(), other_start, other_sz, this_start, this_sz); + this->m_holder.m_size = other_sz; + } + + template<class OtherAllocator> + typename container_detail::disable_if_or + < void + , container_detail::is_version<OtherAllocator, 0> + , container_detail::is_different<OtherAllocator, allocator_type> + >::type + priv_copy_assign(const vector<T, OtherAllocator> &x) + { + allocator_type &this_alloc = this->m_holder.alloc(); + const allocator_type &x_alloc = x.m_holder.alloc(); + container_detail::bool_<allocator_traits_type:: + propagate_on_container_copy_assignment::value> flag; + if(flag && this_alloc != x_alloc){ + this->clear(); + this->shrink_to_fit(); + } + container_detail::assign_alloc(this_alloc, x_alloc, flag); + this->assign( x.priv_raw_begin(), x.priv_raw_end() ); + } + + template<class Vector> //Template it to avoid it in explicit instantiations + void priv_swap(Vector &x, container_detail::true_type) //version_0 + { this->m_holder.deep_swap(x.m_holder); } + + template<class Vector> //Template it to avoid it in explicit instantiations + void priv_swap(Vector &x, container_detail::false_type) //version_N + { + const bool propagate_alloc = allocator_traits_type::propagate_on_container_swap::value; + if(are_swap_propagable( this->get_stored_allocator(), this->m_holder.start() + , x.get_stored_allocator(), x.m_holder.start(), propagate_alloc)){ + //Just swap internals + this->m_holder.swap_resources(x.m_holder); + } + else{ + //Else swap element by element... + bool const t_smaller = this->size() < x.size(); + vector &sml = t_smaller ? *this : x; + vector &big = t_smaller ? x : *this; + + size_type const common_elements = sml.size(); + for(size_type i = 0; i != common_elements; ++i){ + boost::adl_move_swap(sml[i], big[i]); + } + //... and move-insert the remaining range + sml.insert( sml.cend() + , boost::make_move_iterator(container_detail::iterator_to_raw_pointer(big.nth(common_elements))) + , boost::make_move_iterator(container_detail::iterator_to_raw_pointer(big.end())) + ); + //Destroy remaining elements + big.erase(big.nth(common_elements), big.cend()); + } + //And now swap the allocator + container_detail::swap_alloc(this->m_holder.alloc(), x.m_holder.alloc(), container_detail::bool_<propagate_alloc>()); + } + + void priv_reserve_no_capacity(size_type, version_0) + { throw_bad_alloc(); } + + container_detail::insert_range_proxy<Allocator, boost::move_iterator<T*>, T*> priv_dummy_empty_proxy() + { + return container_detail::insert_range_proxy<Allocator, boost::move_iterator<T*>, T*> + (::boost::make_move_iterator((T *)0)); + } + + void priv_reserve_no_capacity(size_type new_cap, version_1) + { + //There is not enough memory, allocate a new buffer + //Pass the hint so that allocators can take advantage of this. + pointer const p = allocator_traits_type::allocate(this->m_holder.alloc(), new_cap, this->m_holder.m_start); + //We will reuse insert code, so create a dummy input iterator + this->priv_forward_range_insert_new_allocation + ( container_detail::to_raw_pointer(p), new_cap, this->priv_raw_end(), 0, this->priv_dummy_empty_proxy()); + } + + void priv_reserve_no_capacity(size_type new_cap, version_2) + { + //There is not enough memory, allocate a new + //buffer or expand the old one. + bool same_buffer_start; + size_type real_cap = 0; + pointer reuse = 0; + pointer const ret(this->m_holder.allocation_command(allocate_new | expand_fwd | expand_bwd, new_cap, real_cap = new_cap, reuse)); + + //Check for forward expansion + same_buffer_start = reuse && this->m_holder.start() == ret; + if(same_buffer_start){ + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_expand_fwd; + #endif + this->m_holder.capacity(real_cap); + } + else{ //If there is no forward expansion, move objects, we will reuse insertion code + T * const new_mem = container_detail::to_raw_pointer(ret); + T * const ins_pos = this->priv_raw_end(); + if(reuse){ //Backwards (and possibly forward) expansion + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_expand_bwd; + #endif + this->priv_forward_range_insert_expand_backwards + ( new_mem , real_cap, ins_pos, 0, this->priv_dummy_empty_proxy()); + } + else{ //New buffer + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_alloc; + #endif + this->priv_forward_range_insert_new_allocation + ( new_mem, real_cap, ins_pos, 0, this->priv_dummy_empty_proxy()); + } + } + } + + void priv_destroy_last(const bool moved = false) BOOST_NOEXCEPT_OR_NOTHROW + { + (void)moved; + if(!(value_traits::trivial_dctr || (value_traits::trivial_dctr_after_move && moved))){ + value_type* const p = this->priv_raw_end() - 1; + allocator_traits_type::destroy(this->get_stored_allocator(), p); + } + --this->m_holder.m_size; + } + + void priv_destroy_last_n(const size_type n) BOOST_NOEXCEPT_OR_NOTHROW + { + BOOST_ASSERT(n <= this->m_holder.m_size); + if(!value_traits::trivial_dctr){ + T* const destroy_pos = this->priv_raw_begin() + (this->m_holder.m_size-n); + boost::container::destroy_alloc_n(this->get_stored_allocator(), destroy_pos, n); + } + this->m_holder.m_size -= n; + } + + template<class InpIt> + void priv_uninitialized_construct_at_end(InpIt first, InpIt last) + { + T* const old_end_pos = this->priv_raw_end(); + T* const new_end_pos = boost::container::uninitialized_copy_alloc(this->m_holder.alloc(), first, last, old_end_pos); + this->m_holder.m_size += new_end_pos - old_end_pos; + } + + void priv_destroy_all() BOOST_NOEXCEPT_OR_NOTHROW + { + boost::container::destroy_alloc_n + (this->get_stored_allocator(), this->priv_raw_begin(), this->m_holder.m_size); + this->m_holder.m_size = 0; + } + + template<class U> + iterator priv_insert(const const_iterator &p, BOOST_FWD_REF(U) x) + { + BOOST_ASSERT(this->priv_in_range_or_end(p)); + return this->priv_forward_range_insert + ( vector_iterator_get_ptr(p), 1, container_detail::get_insert_value_proxy<T*, Allocator>(::boost::forward<U>(x))); + } + + container_detail::insert_copy_proxy<Allocator, T*> priv_single_insert_proxy(const T &x) + { return container_detail::insert_copy_proxy<Allocator, T*> (x); } + + container_detail::insert_move_proxy<Allocator, T*> priv_single_insert_proxy(BOOST_RV_REF(T) x) + { return container_detail::insert_move_proxy<Allocator, T*> (x); } + + template <class U> + void priv_push_back(BOOST_FWD_REF(U) u) + { + if (BOOST_LIKELY(this->room_enough())){ + //There is more memory, just construct a new object at the end + allocator_traits_type::construct + ( this->m_holder.alloc(), this->priv_raw_end(), ::boost::forward<U>(u) ); + ++this->m_holder.m_size; + } + else{ + this->priv_forward_range_insert_no_capacity + ( this->back_ptr(), 1 + , this->priv_single_insert_proxy(::boost::forward<U>(u)), alloc_version()); + } + } + + container_detail::insert_n_copies_proxy<Allocator, T*> priv_resize_proxy(const T &x) + { return container_detail::insert_n_copies_proxy<Allocator, T*>(x); } + + container_detail::insert_default_initialized_n_proxy<Allocator, T*> priv_resize_proxy(default_init_t) + { return container_detail::insert_default_initialized_n_proxy<Allocator, T*>(); } + + container_detail::insert_value_initialized_n_proxy<Allocator, T*> priv_resize_proxy(value_init_t) + { return container_detail::insert_value_initialized_n_proxy<Allocator, T*>(); } + + template <class U> + void priv_resize(size_type new_size, const U& u) + { + const size_type sz = this->size(); + if (new_size < sz){ + //Destroy last elements + this->priv_destroy_last_n(sz - new_size); + } + else{ + const size_type n = new_size - this->size(); + this->priv_forward_range_insert_at_end(n, this->priv_resize_proxy(u), alloc_version()); + } + } + + void priv_shrink_to_fit(version_0) BOOST_NOEXCEPT_OR_NOTHROW + {} + + void priv_shrink_to_fit(version_1) + { + const size_type cp = this->m_holder.capacity(); + if(cp){ + const size_type sz = this->size(); + if(!sz){ + this->m_holder.alloc().deallocate(this->m_holder.m_start, cp); + this->m_holder.m_start = pointer(); + this->m_holder.m_capacity = 0; + } + else if(sz < cp){ + //Allocate a new buffer. + //Pass the hint so that allocators can take advantage of this. + pointer const p = allocator_traits_type::allocate(this->m_holder.alloc(), sz, this->m_holder.m_start); + + //We will reuse insert code, so create a dummy input iterator + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_alloc; + #endif + this->priv_forward_range_insert_new_allocation + ( container_detail::to_raw_pointer(p), sz + , this->priv_raw_begin(), 0, this->priv_dummy_empty_proxy()); + } + } + } + + void priv_shrink_to_fit(version_2) BOOST_NOEXCEPT_OR_NOTHROW + { + const size_type cp = this->m_holder.capacity(); + if(cp){ + const size_type sz = this->size(); + if(!sz){ + this->m_holder.alloc().deallocate(this->m_holder.m_start, cp); + this->m_holder.m_start = pointer(); + this->m_holder.m_capacity = 0; + } + else{ + size_type received_size = sz; + pointer reuse(this->m_holder.start()); + if(this->m_holder.allocation_command + (shrink_in_place | nothrow_allocation, cp, received_size, reuse)){ + this->m_holder.capacity(received_size); + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_shrink; + #endif + } + } + } + } + + template <class InsertionProxy> + iterator priv_forward_range_insert_no_capacity + (const pointer &pos, const size_type, const InsertionProxy , version_0) + { + throw_bad_alloc(); + return iterator(pos); + } + + template <class InsertionProxy> + iterator priv_forward_range_insert_no_capacity + (const pointer &pos, const size_type n, const InsertionProxy insert_range_proxy, version_1) + { + //Check if we have enough memory or try to expand current memory + const size_type n_pos = pos - this->m_holder.start(); + T *const raw_pos = container_detail::to_raw_pointer(pos); + + const size_type new_cap = this->m_holder.next_capacity(n); + //Pass the hint so that allocators can take advantage of this. + T * const new_buf = container_detail::to_raw_pointer + (allocator_traits_type::allocate(this->m_holder.alloc(), new_cap, this->m_holder.m_start)); + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_alloc; + #endif + this->priv_forward_range_insert_new_allocation + ( new_buf, new_cap, raw_pos, n, insert_range_proxy); + return iterator(this->m_holder.start() + n_pos); + } + + template <class InsertionProxy> + iterator priv_forward_range_insert_no_capacity + (const pointer &pos, const size_type n, const InsertionProxy insert_range_proxy, version_2) + { + //Check if we have enough memory or try to expand current memory + T *const raw_pos = container_detail::to_raw_pointer(pos); + const size_type n_pos = raw_pos - this->priv_raw_begin(); + + //There is not enough memory, allocate a new + //buffer or expand the old one. + size_type real_cap = this->m_holder.next_capacity(n); + pointer reuse(this->m_holder.start()); + pointer const ret (this->m_holder.allocation_command + (allocate_new | expand_fwd | expand_bwd, this->m_holder.m_size + n, real_cap, reuse)); + + //Buffer reallocated + if(reuse){ + //Forward expansion, delay insertion + if(this->m_holder.start() == ret){ + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_expand_fwd; + #endif + this->m_holder.capacity(real_cap); + //Expand forward + this->priv_forward_range_insert_expand_forward(raw_pos, n, insert_range_proxy); + } + //Backwards (and possibly forward) expansion + else{ + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_expand_bwd; + #endif + this->priv_forward_range_insert_expand_backwards + (container_detail::to_raw_pointer(ret), real_cap, raw_pos, n, insert_range_proxy); + } + } + //New buffer + else{ + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + ++this->num_alloc; + #endif + this->priv_forward_range_insert_new_allocation + ( container_detail::to_raw_pointer(ret), real_cap, raw_pos, n, insert_range_proxy); + } + + return iterator(this->m_holder.start() + n_pos); + } + + template <class InsertionProxy> + iterator priv_forward_range_insert + (const pointer &pos, const size_type n, const InsertionProxy insert_range_proxy) + { + BOOST_ASSERT(this->m_holder.capacity() >= this->m_holder.m_size); + //Check if we have enough memory or try to expand current memory + const size_type remaining = this->m_holder.capacity() - this->m_holder.m_size; + + bool same_buffer_start = n <= remaining; + if (!same_buffer_start){ + return priv_forward_range_insert_no_capacity(pos, n, insert_range_proxy, alloc_version()); + } + else{ + //Expand forward + T *const raw_pos = container_detail::to_raw_pointer(pos); + const size_type n_pos = raw_pos - this->priv_raw_begin(); + this->priv_forward_range_insert_expand_forward(raw_pos, n, insert_range_proxy); + return iterator(this->m_holder.start() + n_pos); + } + } + + template <class InsertionProxy> + iterator priv_forward_range_insert_at_end + (const size_type n, const InsertionProxy insert_range_proxy, version_0) + { + //Check if we have enough memory or try to expand current memory + const size_type remaining = this->m_holder.capacity() - this->m_holder.m_size; + + if (n > remaining){ + //This will trigger an error + throw_bad_alloc(); + } + this->priv_forward_range_insert_at_end_expand_forward(n, insert_range_proxy); + return this->end(); + } + + template <class InsertionProxy, class AllocVersion> + iterator priv_forward_range_insert_at_end + (const size_type n, const InsertionProxy insert_range_proxy, AllocVersion) + { + return this->priv_forward_range_insert(this->back_ptr(), n, insert_range_proxy); + } + + //Takes the range pointed by [first_pos, last_pos) and shifts it to the right + //by 'shift_count'. 'limit_pos' marks the end of constructed elements. + // + //Precondition: first_pos <= last_pos <= limit_pos + // + //The shift operation might cross limit_pos so elements to moved beyond limit_pos + //are uninitialized_moved with an allocator. Other elements are moved. + // + //The shift operation might left uninitialized elements after limit_pos + //and the number of uninitialized elements is returned by the function. + // + //Old situation: + // first_pos last_pos old_limit + // | | | + // ____________V_______V__________________V_____________ + //| prefix | range | suffix |raw_mem ~ + //|____________|_______|__________________|_____________~ + // + //New situation in Case A (hole_size == 0): + // range is moved through move assignments + // + // first_pos last_pos limit_pos + // | | | + // ____________V_______V__________________V_____________ + //| prefix' | | | range |suffix'|raw_mem ~ + //|________________+______|___^___|_______|_____________~ + // | | + // |_>_>_>_>_>^ + // + // + //New situation in Case B (hole_size >= 0): + // range is moved through uninitialized moves + // + // first_pos last_pos limit_pos + // | | | + // ____________V_______V__________________V________________ + //| prefix' | | | [hole] | range | + //|_______________________________________|________|___^___| + // | | + // |_>_>_>_>_>_>_>_>_>_>_>_>_>_>_>_>_>_^ + // + //New situation in Case C (hole_size == 0): + // range is moved through move assignments and uninitialized moves + // + // first_pos last_pos limit_pos + // | | | + // ____________V_______V__________________V___ + //| prefix' | | | range | + //|___________________________________|___^___| + // | | + // |_>_>_>_>_>_>_>_>_>_>_>^ + size_type priv_insert_ordered_at_shift_range + (size_type first_pos, size_type last_pos, size_type limit_pos, size_type shift_count) + { + BOOST_ASSERT(first_pos <= last_pos); + BOOST_ASSERT(last_pos <= limit_pos); + // + T* const begin_ptr = this->priv_raw_begin(); + T* const first_ptr = begin_ptr + first_pos; + T* const last_ptr = begin_ptr + last_pos; + + size_type hole_size = 0; + //Case A: + if((last_pos + shift_count) <= limit_pos){ + //All move assigned + boost::container::move_backward(first_ptr, last_ptr, last_ptr + shift_count); + } + //Case B: + else if((first_pos + shift_count) >= limit_pos){ + //All uninitialized_moved + ::boost::container::uninitialized_move_alloc + (this->m_holder.alloc(), first_ptr, last_ptr, first_ptr + shift_count); + hole_size = first_pos + shift_count - limit_pos; + } + //Case C: + else{ + //Some uninitialized_moved + T* const limit_ptr = begin_ptr + limit_pos; + T* const boundary_ptr = limit_ptr - shift_count; + ::boost::container::uninitialized_move_alloc(this->m_holder.alloc(), boundary_ptr, last_ptr, limit_ptr); + //The rest is move assigned + boost::container::move_backward(first_ptr, boundary_ptr, limit_ptr); + } + return hole_size; + } + + private: + T *priv_raw_begin() const + { return container_detail::to_raw_pointer(m_holder.start()); } + + T* priv_raw_end() const + { return this->priv_raw_begin() + this->m_holder.m_size; } + + template <class InsertionProxy> + void priv_forward_range_insert_at_end_expand_forward(const size_type n, InsertionProxy insert_range_proxy) + { + T* const old_finish = this->priv_raw_end(); + insert_range_proxy.uninitialized_copy_n_and_update(this->m_holder.alloc(), old_finish, n); + this->m_holder.m_size += n; + } + + template <class InsertionProxy> + void priv_forward_range_insert_expand_forward(T* const pos, const size_type n, InsertionProxy insert_range_proxy) + { + //n can't be 0, because there is nothing to do in that case + if(BOOST_UNLIKELY(!n)) return; + //There is enough memory + T* const old_finish = this->priv_raw_end(); + const size_type elems_after = old_finish - pos; + + if (!elems_after){ + insert_range_proxy.uninitialized_copy_n_and_update(this->m_holder.alloc(), old_finish, n); + this->m_holder.m_size += n; + } + else if (elems_after >= n){ + //New elements can be just copied. + //Move to uninitialized memory last objects + ::boost::container::uninitialized_move_alloc + (this->m_holder.alloc(), old_finish - n, old_finish, old_finish); + this->m_holder.m_size += n; + //Copy previous to last objects to the initialized end + boost::container::move_backward(pos, old_finish - n, old_finish); + //Insert new objects in the pos + insert_range_proxy.copy_n_and_update(this->m_holder.alloc(), pos, n); + } + else { + //The new elements don't fit in the [pos, end()) range. + + //Copy old [pos, end()) elements to the uninitialized memory (a gap is created) + ::boost::container::uninitialized_move_alloc(this->m_holder.alloc(), pos, old_finish, pos + n); + BOOST_TRY{ + //Copy first new elements in pos (gap is still there) + insert_range_proxy.copy_n_and_update(this->m_holder.alloc(), pos, elems_after); + //Copy to the beginning of the unallocated zone the last new elements (the gap is closed). + insert_range_proxy.uninitialized_copy_n_and_update(this->m_holder.alloc(), old_finish, n - elems_after); + this->m_holder.m_size += n; + } + BOOST_CATCH(...){ + boost::container::destroy_alloc_n(this->get_stored_allocator(), pos + n, elems_after); + BOOST_RETHROW + } + BOOST_CATCH_END + } + } + + template <class InsertionProxy> + void priv_forward_range_insert_new_allocation + (T* const new_start, size_type new_cap, T* const pos, const size_type n, InsertionProxy insert_range_proxy) + { + //n can be zero, if we want to reallocate! + T *new_finish = new_start; + T *old_finish; + //Anti-exception rollbacks + typename value_traits::ArrayDeallocator new_buffer_deallocator(new_start, this->m_holder.alloc(), new_cap); + typename value_traits::ArrayDestructor new_values_destroyer(new_start, this->m_holder.alloc(), 0u); + + //Initialize with [begin(), pos) old buffer + //the start of the new buffer + T * const old_buffer = this->priv_raw_begin(); + if(old_buffer){ + new_finish = ::boost::container::uninitialized_move_alloc + (this->m_holder.alloc(), this->priv_raw_begin(), pos, old_finish = new_finish); + new_values_destroyer.increment_size(new_finish - old_finish); + } + //Initialize new objects, starting from previous point + old_finish = new_finish; + insert_range_proxy.uninitialized_copy_n_and_update(this->m_holder.alloc(), old_finish, n); + new_finish += n; + new_values_destroyer.increment_size(new_finish - old_finish); + //Initialize from the rest of the old buffer, + //starting from previous point + if(old_buffer){ + new_finish = ::boost::container::uninitialized_move_alloc + (this->m_holder.alloc(), pos, old_buffer + this->m_holder.m_size, new_finish); + //Destroy and deallocate old elements + //If there is allocated memory, destroy and deallocate + if(!value_traits::trivial_dctr_after_move) + boost::container::destroy_alloc_n(this->get_stored_allocator(), old_buffer, this->m_holder.m_size); + this->m_holder.alloc().deallocate(this->m_holder.start(), this->m_holder.capacity()); + } + this->m_holder.start(new_start); + this->m_holder.m_size = new_finish - new_start; + this->m_holder.capacity(new_cap); + //All construction successful, disable rollbacks + new_values_destroyer.release(); + new_buffer_deallocator.release(); + } + + template <class InsertionProxy> + void priv_forward_range_insert_expand_backwards + (T* const new_start, const size_type new_capacity, + T* const pos, const size_type n, InsertionProxy insert_range_proxy) + { + //n can be zero to just expand capacity + //Backup old data + T* const old_start = this->priv_raw_begin(); + const size_type old_size = this->m_holder.m_size; + T* const old_finish = old_start + old_size; + + //We can have 8 possibilities: + const size_type elemsbefore = static_cast<size_type>(pos - old_start); + const size_type s_before = static_cast<size_type>(old_start - new_start); + const size_type before_plus_new = elemsbefore + n; + + //Update the vector buffer information to a safe state + this->m_holder.start(new_start); + this->m_holder.capacity(new_capacity); + this->m_holder.m_size = 0; + + //If anything goes wrong, this object will destroy + //all the old objects to fulfill previous vector state + typename value_traits::ArrayDestructor old_values_destroyer(old_start, this->m_holder.alloc(), old_size); + //Check if s_before is big enough to hold the beginning of old data + new data + if(s_before >= before_plus_new){ + //Copy first old values before pos, after that the new objects + T *const new_elem_pos = + ::boost::container::uninitialized_move_alloc(this->m_holder.alloc(), old_start, pos, new_start); + this->m_holder.m_size = elemsbefore; + insert_range_proxy.uninitialized_copy_n_and_update(this->m_holder.alloc(), new_elem_pos, n); + this->m_holder.m_size = before_plus_new; + const size_type new_size = old_size + n; + //Check if s_before is so big that even copying the old data + new data + //there is a gap between the new data and the old data + if(s_before >= new_size){ + //Old situation: + // _________________________________________________________ + //| raw_mem | old_begin | old_end | + //| __________________________________|___________|_________| + // + //New situation: + // _________________________________________________________ + //| old_begin | new | old_end | raw_mem | + //|___________|__________|_________|________________________| + // + //Now initialize the rest of memory with the last old values + if(before_plus_new != new_size){ //Special case to avoid operations in back insertion + ::boost::container::uninitialized_move_alloc + (this->m_holder.alloc(), pos, old_finish, new_start + before_plus_new); + //All new elements correctly constructed, avoid new element destruction + this->m_holder.m_size = new_size; + } + //Old values destroyed automatically with "old_values_destroyer" + //when "old_values_destroyer" goes out of scope unless the have trivial + //destructor after move. + if(value_traits::trivial_dctr_after_move) + old_values_destroyer.release(); + } + //s_before is so big that divides old_end + else{ + //Old situation: + // __________________________________________________ + //| raw_mem | old_begin | old_end | + //| ___________________________|___________|_________| + // + //New situation: + // __________________________________________________ + //| old_begin | new | old_end | raw_mem | + //|___________|__________|_________|_________________| + // + //Now initialize the rest of memory with the last old values + //All new elements correctly constructed, avoid new element destruction + const size_type raw_gap = s_before - before_plus_new; + if(!value_traits::trivial_dctr){ + //Now initialize the rest of s_before memory with the + //first of elements after new values + ::boost::container::uninitialized_move_alloc_n + (this->m_holder.alloc(), pos, raw_gap, new_start + before_plus_new); + //Now we have a contiguous buffer so program trailing element destruction + //and update size to the final size. + old_values_destroyer.shrink_forward(new_size-s_before); + this->m_holder.m_size = new_size; + //Now move remaining last objects in the old buffer begin + T * const remaining_pos = pos + raw_gap; + if(remaining_pos != old_start){ //Make sure data has to be moved + ::boost::container::move(remaining_pos, old_finish, old_start); + } + //Once moved, avoid calling the destructors if trivial after move + if(value_traits::trivial_dctr_after_move){ + old_values_destroyer.release(); + } + } + else{ //If trivial destructor, we can uninitialized copy + copy in a single uninitialized copy + ::boost::container::uninitialized_move_alloc_n + (this->m_holder.alloc(), pos, old_finish - pos, new_start + before_plus_new); + this->m_holder.m_size = new_size; + old_values_destroyer.release(); + } + } + } + else{ + //Check if we have to do the insertion in two phases + //since maybe s_before is not big enough and + //the buffer was expanded both sides + // + //Old situation: + // _________________________________________________ + //| raw_mem | old_begin + old_end | raw_mem | + //|_________|_____________________|_________________| + // + //New situation with do_after: + // _________________________________________________ + //| old_begin + new + old_end | raw_mem | + //|___________________________________|_____________| + // + //New without do_after: + // _________________________________________________ + //| old_begin + new + old_end | raw_mem | + //|____________________________|____________________| + // + const bool do_after = n > s_before; + + //Now we can have two situations: the raw_mem of the + //beginning divides the old_begin, or the new elements: + if (s_before <= elemsbefore) { + //The raw memory divides the old_begin group: + // + //If we need two phase construction (do_after) + //new group is divided in new = new_beg + new_end groups + //In this phase only new_beg will be inserted + // + //Old situation: + // _________________________________________________ + //| raw_mem | old_begin | old_end | raw_mem | + //|_________|___________|_________|_________________| + // + //New situation with do_after(1): + //This is not definitive situation, the second phase + //will include + // _________________________________________________ + //| old_begin | new_beg | old_end | raw_mem | + //|___________|_________|_________|_________________| + // + //New situation without do_after: + // _________________________________________________ + //| old_begin | new | old_end | raw_mem | + //|___________|_____|_________|_____________________| + // + //Copy the first part of old_begin to raw_mem + ::boost::container::uninitialized_move_alloc_n + (this->m_holder.alloc(), old_start, s_before, new_start); + //The buffer is all constructed until old_end, + //so program trailing destruction and assign final size + //if !do_after, s_before+n otherwise. + size_type new_1st_range; + if(do_after){ + new_1st_range = s_before; + //release destroyer and update size + old_values_destroyer.release(); + } + else{ + new_1st_range = n; + if(value_traits::trivial_dctr_after_move) + old_values_destroyer.release(); + else{ + old_values_destroyer.shrink_forward(old_size - (s_before - n)); + } + } + this->m_holder.m_size = old_size + new_1st_range; + //Now copy the second part of old_begin overwriting itself + T *const next = ::boost::container::move(old_start + s_before, pos, old_start); + //Now copy the new_beg elements + insert_range_proxy.copy_n_and_update(this->m_holder.alloc(), next, new_1st_range); + + //If there is no after work and the last old part needs to be moved to front, do it + if(!do_after && (n != s_before)){ + //Now displace old_end elements + ::boost::container::move(pos, old_finish, next + new_1st_range); + } + } + else { + //If we have to expand both sides, + //we will play if the first new values so + //calculate the upper bound of new values + + //The raw memory divides the new elements + // + //If we need two phase construction (do_after) + //new group is divided in new = new_beg + new_end groups + //In this phase only new_beg will be inserted + // + //Old situation: + // _______________________________________________________ + //| raw_mem | old_begin | old_end | raw_mem | + //|_______________|___________|_________|_________________| + // + //New situation with do_after(): + // ____________________________________________________ + //| old_begin | new_beg | old_end | raw_mem | + //|___________|_______________|_________|______________| + // + //New situation without do_after: + // ______________________________________________________ + //| old_begin | new | old_end | raw_mem | + //|___________|_____|_________|__________________________| + // + //First copy whole old_begin and part of new to raw_mem + T * const new_pos = ::boost::container::uninitialized_move_alloc + (this->m_holder.alloc(), old_start, pos, new_start); + this->m_holder.m_size = elemsbefore; + const size_type mid_n = s_before - elemsbefore; + insert_range_proxy.uninitialized_copy_n_and_update(this->m_holder.alloc(), new_pos, mid_n); + //The buffer is all constructed until old_end, + //release destroyer + this->m_holder.m_size = old_size + s_before; + old_values_destroyer.release(); + + if(do_after){ + //Copy new_beg part + insert_range_proxy.copy_n_and_update(this->m_holder.alloc(), old_start, elemsbefore); + } + else{ + //Copy all new elements + const size_type rest_new = n - mid_n; + insert_range_proxy.copy_n_and_update(this->m_holder.alloc(), old_start, rest_new); + T* const move_start = old_start + rest_new; + //Displace old_end, but make sure data has to be moved + T* const move_end = move_start != pos ? ::boost::container::move(pos, old_finish, move_start) + : old_finish; + //Destroy remaining moved elements from old_end except if they + //have trivial destructor after being moved + size_type n_destroy = s_before - n; + if(!value_traits::trivial_dctr_after_move) + boost::container::destroy_alloc_n(this->get_stored_allocator(), move_end, n_destroy); + this->m_holder.m_size -= n_destroy; + } + } + + //This is only executed if two phase construction is needed + if(do_after){ + //The raw memory divides the new elements + // + //Old situation: + // ______________________________________________________ + //| raw_mem | old_begin | old_end | raw_mem | + //|______________|___________|____________|______________| + // + //New situation with do_after(1): + // _______________________________________________________ + //| old_begin + new_beg | new_end |old_end | raw_mem | + //|__________________________|_________|________|_________| + // + //New situation with do_after(2): + // ______________________________________________________ + //| old_begin + new | old_end |raw | + //|_______________________________________|_________|____| + // + const size_type n_after = n - s_before; + const size_type elemsafter = old_size - elemsbefore; + + //We can have two situations: + if (elemsafter >= n_after){ + //The raw_mem from end will divide displaced old_end + // + //Old situation: + // ______________________________________________________ + //| raw_mem | old_begin | old_end | raw_mem | + //|______________|___________|____________|______________| + // + //New situation with do_after(1): + // _______________________________________________________ + //| old_begin + new_beg | new_end |old_end | raw_mem | + //|__________________________|_________|________|_________| + // + //First copy the part of old_end raw_mem + T* finish_n = old_finish - n_after; + ::boost::container::uninitialized_move_alloc + (this->m_holder.alloc(), finish_n, old_finish, old_finish); + this->m_holder.m_size += n_after; + //Displace the rest of old_end to the new position + boost::container::move_backward(pos, finish_n, old_finish); + //Now overwrite with new_end + //The new_end part is [first + (n - n_after), last) + insert_range_proxy.copy_n_and_update(this->m_holder.alloc(), pos, n_after); + } + else { + //The raw_mem from end will divide new_end part + // + //Old situation: + // _____________________________________________________________ + //| raw_mem | old_begin | old_end | raw_mem | + //|______________|___________|____________|_____________________| + // + //New situation with do_after(2): + // _____________________________________________________________ + //| old_begin + new_beg | new_end |old_end | raw_mem | + //|__________________________|_______________|________|_________| + // + + const size_type mid_last_dist = n_after - elemsafter; + //First initialize data in raw memory + + //Copy to the old_end part to the uninitialized zone leaving a gap. + ::boost::container::uninitialized_move_alloc + (this->m_holder.alloc(), pos, old_finish, old_finish + mid_last_dist); + + typename value_traits::ArrayDestructor old_end_destroyer + (old_finish + mid_last_dist, this->m_holder.alloc(), old_finish - pos); + + //Copy the first part to the already constructed old_end zone + insert_range_proxy.copy_n_and_update(this->m_holder.alloc(), pos, elemsafter); + //Copy the rest to the uninitialized zone filling the gap + insert_range_proxy.uninitialized_copy_n_and_update(this->m_holder.alloc(), old_finish, mid_last_dist); + this->m_holder.m_size += n_after; + old_end_destroyer.release(); + } + } + } + } + + void priv_throw_if_out_of_range(size_type n) const + { + //If n is out of range, throw an out_of_range exception + if (n >= this->size()){ + throw_out_of_range("vector::at out of range"); + } + } + + bool priv_in_range(const_iterator pos) const + { + return (this->begin() <= pos) && (pos < this->end()); + } + + bool priv_in_range_or_end(const_iterator pos) const + { + return (this->begin() <= pos) && (pos <= this->end()); + } + + #ifdef BOOST_CONTAINER_VECTOR_ALLOC_STATS + public: + unsigned int num_expand_fwd; + unsigned int num_expand_bwd; + unsigned int num_shrink; + unsigned int num_alloc; + void reset_alloc_stats() + { num_expand_fwd = num_expand_bwd = num_alloc = 0, num_shrink = 0; } + #endif + #endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED +}; + +}} //namespace boost::container + +#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_VECTOR_HPP |