STL/stl/inc/vector

2892 строки
105 KiB
C++

// vector standard header
// Copyright (c) Microsoft Corporation.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#pragma once
#ifndef _VECTOR_
#define _VECTOR_
#include <yvals_core.h>
#if _STL_COMPILER_PREPROCESSOR
#include <xmemory>
#if _HAS_CXX17
#include <xpolymorphic_allocator.h>
#endif // _HAS_CXX17
#pragma pack(push, _CRT_PACKING)
#pragma warning(push, _STL_WARNING_LEVEL)
#pragma warning(disable : _STL_DISABLED_WARNINGS)
_STL_DISABLE_CLANG_WARNINGS
#pragma push_macro("new")
#undef new
_STD_BEGIN
// CLASS TEMPLATE _Vector_const_iterator
template <class _Myvec>
class _Vector_const_iterator : public _Iterator_base {
public:
#ifdef __cpp_lib_concepts
using iterator_concept = contiguous_iterator_tag;
#endif // __cpp_lib_concepts
using iterator_category = random_access_iterator_tag;
using value_type = typename _Myvec::value_type;
using difference_type = typename _Myvec::difference_type;
using pointer = typename _Myvec::const_pointer;
using reference = const value_type&;
using _Tptr = typename _Myvec::pointer;
_Vector_const_iterator() noexcept : _Ptr() {}
_Vector_const_iterator(_Tptr _Parg, const _Container_base* _Pvector) noexcept : _Ptr(_Parg) {
this->_Adopt(_Pvector);
}
_NODISCARD reference operator*() const {
#if _ITERATOR_DEBUG_LEVEL != 0
const auto _Mycont = static_cast<const _Myvec*>(this->_Getcont());
_STL_VERIFY(_Ptr, "can't dereference value-initialized vector iterator");
_STL_VERIFY(
_Mycont->_Myfirst <= _Ptr && _Ptr < _Mycont->_Mylast, "can't dereference out of range vector iterator");
#endif // _ITERATOR_DEBUG_LEVEL != 0
return *_Ptr;
}
_NODISCARD pointer operator->() const {
#if _ITERATOR_DEBUG_LEVEL != 0
const auto _Mycont = static_cast<const _Myvec*>(this->_Getcont());
_STL_VERIFY(_Ptr, "can't dereference value-initialized vector iterator");
_STL_VERIFY(
_Mycont->_Myfirst <= _Ptr && _Ptr < _Mycont->_Mylast, "can't dereference out of range vector iterator");
#endif // _ITERATOR_DEBUG_LEVEL != 0
return _Ptr;
}
_Vector_const_iterator& operator++() {
#if _ITERATOR_DEBUG_LEVEL != 0
const auto _Mycont = static_cast<const _Myvec*>(this->_Getcont());
_STL_VERIFY(_Ptr, "can't increment value-initialized vector iterator");
_STL_VERIFY(_Ptr < _Mycont->_Mylast, "can't increment vector iterator past end");
#endif // _ITERATOR_DEBUG_LEVEL != 0
++_Ptr;
return *this;
}
_Vector_const_iterator operator++(int) {
_Vector_const_iterator _Tmp = *this;
++*this;
return _Tmp;
}
_Vector_const_iterator& operator--() {
#if _ITERATOR_DEBUG_LEVEL != 0
const auto _Mycont = static_cast<const _Myvec*>(this->_Getcont());
_STL_VERIFY(_Ptr, "can't decrement value-initialized vector iterator");
_STL_VERIFY(_Mycont->_Myfirst < _Ptr, "can't decrement vector iterator before begin");
#endif // _ITERATOR_DEBUG_LEVEL != 0
--_Ptr;
return *this;
}
_Vector_const_iterator operator--(int) {
_Vector_const_iterator _Tmp = *this;
--*this;
return _Tmp;
}
void _Verify_offset(const difference_type _Off) const {
#if _ITERATOR_DEBUG_LEVEL == 0
(void) _Off;
#else // ^^^ _ITERATOR_DEBUG_LEVEL == 0 ^^^ // vvv _ITERATOR_DEBUG_LEVEL != 0 vvv
const auto _Mycont = static_cast<const _Myvec*>(this->_Getcont());
_STL_VERIFY(_Off == 0 || _Ptr, "cannot seek value-initialized vector iterator");
if (_Off < 0) {
_STL_VERIFY(_Off >= _Mycont->_Myfirst - _Ptr, "cannot seek vector iterator before begin");
}
if (_Off > 0) {
_STL_VERIFY(_Off <= _Mycont->_Mylast - _Ptr, "cannot seek vector iterator after end");
}
#endif // _ITERATOR_DEBUG_LEVEL == 0
}
_Vector_const_iterator& operator+=(const difference_type _Off) {
_Verify_offset(_Off);
_Ptr += _Off;
return *this;
}
_NODISCARD _Vector_const_iterator operator+(const difference_type _Off) const {
_Vector_const_iterator _Tmp = *this;
return _Tmp += _Off;
}
_Vector_const_iterator& operator-=(const difference_type _Off) {
return *this += -_Off;
}
_NODISCARD _Vector_const_iterator operator-(const difference_type _Off) const {
_Vector_const_iterator _Tmp = *this;
return _Tmp -= _Off;
}
_NODISCARD difference_type operator-(const _Vector_const_iterator& _Right) const {
_Compat(_Right);
return _Ptr - _Right._Ptr;
}
_NODISCARD reference operator[](const difference_type _Off) const {
return *(*this + _Off);
}
_NODISCARD bool operator==(const _Vector_const_iterator& _Right) const {
_Compat(_Right);
return _Ptr == _Right._Ptr;
}
_NODISCARD bool operator!=(const _Vector_const_iterator& _Right) const {
return !(*this == _Right);
}
_NODISCARD bool operator<(const _Vector_const_iterator& _Right) const {
_Compat(_Right);
return _Ptr < _Right._Ptr;
}
_NODISCARD bool operator>(const _Vector_const_iterator& _Right) const {
return _Right < *this;
}
_NODISCARD bool operator<=(const _Vector_const_iterator& _Right) const {
return !(_Right < *this);
}
_NODISCARD bool operator>=(const _Vector_const_iterator& _Right) const {
return !(*this < _Right);
}
void _Compat(const _Vector_const_iterator& _Right) const { // test for compatible iterator pair
#if _ITERATOR_DEBUG_LEVEL == 0
(void) _Right;
#else // ^^^ _ITERATOR_DEBUG_LEVEL == 0 ^^^ // vvv _ITERATOR_DEBUG_LEVEL != 0 vvv
_STL_VERIFY(this->_Getcont() == _Right._Getcont(), "vector iterators incompatible");
#endif // _ITERATOR_DEBUG_LEVEL == 0
}
#if _ITERATOR_DEBUG_LEVEL != 0
friend void _Verify_range(const _Vector_const_iterator& _First, const _Vector_const_iterator& _Last) {
_STL_VERIFY(_First._Getcont() == _Last._Getcont(), "vector iterators in range are from different containers");
_STL_VERIFY(_First._Ptr <= _Last._Ptr, "vector iterator range transposed");
}
#endif // _ITERATOR_DEBUG_LEVEL != 0
using _Prevent_inheriting_unwrap = _Vector_const_iterator;
_NODISCARD const value_type* _Unwrapped() const {
return _Unfancy(_Ptr);
}
void _Seek_to(const value_type* _It) {
_Ptr = _Refancy<_Tptr>(const_cast<value_type*>(_It));
}
_Tptr _Ptr; // pointer to element in vector
};
template <class _Myvec>
_NODISCARD _Vector_const_iterator<_Myvec> operator+(
typename _Vector_const_iterator<_Myvec>::difference_type _Off, _Vector_const_iterator<_Myvec> _Next) {
return _Next += _Off;
}
#if _HAS_CXX20
template <class _Myvec>
struct pointer_traits<_Vector_const_iterator<_Myvec>> {
using pointer = _Vector_const_iterator<_Myvec>;
using element_type = const typename pointer::value_type;
using difference_type = typename pointer::difference_type;
_NODISCARD static constexpr element_type* to_address(const pointer _Iter) noexcept {
#if _ITERATOR_DEBUG_LEVEL != 0
// A value-initialized iterator is in the domain of to_address. An invalidated end iterator for a vector with
// capacity() of 0 is not. This function cannot distinguish those two cases, so it incorrectly does not diagnose
// the latter. In practice, this isn't a significant problem since to_address returns nullptr for such an
// iterator.
const auto _Mycont = static_cast<const _Myvec*>(_Iter._Getcont());
if (_Mycont) {
_STL_VERIFY(_Mycont->_Myfirst <= _Iter._Ptr && _Iter._Ptr <= _Mycont->_Mylast,
"can't convert out-of-range vector iterator to pointer");
} else {
_STL_VERIFY(!_Iter._Ptr, "can't convert invalid vector iterator to pointer");
}
#endif // _ITERATOR_DEBUG_LEVEL != 0
return _STD to_address(_Iter._Ptr);
}
};
#endif // _HAS_CXX20
// CLASS TEMPLATE _Vector_iterator
template <class _Myvec>
class _Vector_iterator : public _Vector_const_iterator<_Myvec> {
public:
using _Mybase = _Vector_const_iterator<_Myvec>;
#ifdef __cpp_lib_concepts
using iterator_concept = contiguous_iterator_tag;
#endif // __cpp_lib_concepts
using iterator_category = random_access_iterator_tag;
using value_type = typename _Myvec::value_type;
using difference_type = typename _Myvec::difference_type;
using pointer = typename _Myvec::pointer;
using reference = value_type&;
using _Mybase::_Mybase;
_NODISCARD reference operator*() const {
return const_cast<reference>(_Mybase::operator*());
}
_NODISCARD pointer operator->() const {
return _Const_cast(_Mybase::operator->());
}
_Vector_iterator& operator++() {
_Mybase::operator++();
return *this;
}
_Vector_iterator operator++(int) {
_Vector_iterator _Tmp = *this;
_Mybase::operator++();
return _Tmp;
}
_Vector_iterator& operator--() {
_Mybase::operator--();
return *this;
}
_Vector_iterator operator--(int) {
_Vector_iterator _Tmp = *this;
_Mybase::operator--();
return _Tmp;
}
_Vector_iterator& operator+=(const difference_type _Off) {
_Mybase::operator+=(_Off);
return *this;
}
_NODISCARD _Vector_iterator operator+(const difference_type _Off) const {
_Vector_iterator _Tmp = *this;
return _Tmp += _Off;
}
_Vector_iterator& operator-=(const difference_type _Off) {
_Mybase::operator-=(_Off);
return *this;
}
using _Mybase::operator-;
_NODISCARD _Vector_iterator operator-(const difference_type _Off) const {
_Vector_iterator _Tmp = *this;
return _Tmp -= _Off;
}
_NODISCARD reference operator[](const difference_type _Off) const {
return const_cast<reference>(_Mybase::operator[](_Off));
}
using _Prevent_inheriting_unwrap = _Vector_iterator;
_NODISCARD value_type* _Unwrapped() const {
return _Unfancy(this->_Ptr);
}
};
template <class _Myvec>
_NODISCARD _Vector_iterator<_Myvec> operator+(
typename _Vector_iterator<_Myvec>::difference_type _Off, _Vector_iterator<_Myvec> _Next) {
return _Next += _Off;
}
#if _HAS_CXX20
template <class _Myvec>
struct pointer_traits<_Vector_iterator<_Myvec>> {
using pointer = _Vector_iterator<_Myvec>;
using element_type = typename pointer::value_type;
using difference_type = typename pointer::difference_type;
_NODISCARD static constexpr element_type* to_address(const pointer _Iter) noexcept {
#if _ITERATOR_DEBUG_LEVEL != 0
// A value-initialized iterator is in the domain of to_address. An invalidated end iterator for a vector with
// capacity() of 0 is not. This function cannot distinguish those two cases, so it incorrectly does not diagnose
// the latter. In practice, this isn't a significant problem since to_address returns nullptr for such an
// iterator.
const auto _Mycont = static_cast<const _Myvec*>(_Iter._Getcont());
if (_Mycont) {
_STL_VERIFY(_Mycont->_Myfirst <= _Iter._Ptr && _Iter._Ptr <= _Mycont->_Mylast,
"can't convert out-of-range vector iterator to pointer");
} else {
_STL_VERIFY(!_Iter._Ptr, "can't convert invalid vector iterator to pointer");
}
#endif // _ITERATOR_DEBUG_LEVEL != 0
return _STD to_address(_Iter._Ptr);
}
};
#endif // _HAS_CXX20
// vector TYPE WRAPPERS
template <class _Value_type, class _Size_type, class _Difference_type, class _Pointer, class _Const_pointer,
class _Reference, class _Const_reference>
struct _Vec_iter_types {
using value_type = _Value_type;
using size_type = _Size_type;
using difference_type = _Difference_type;
using pointer = _Pointer;
using const_pointer = _Const_pointer;
};
// STRUCT _Value_init_tag
struct _Value_init_tag { // tag to request value-initialization
};
// CLASS TEMPLATE _Vector_val
template <class _Val_types>
class _Vector_val : public _Container_base {
public:
using value_type = typename _Val_types::value_type;
using size_type = typename _Val_types::size_type;
using difference_type = typename _Val_types::difference_type;
using pointer = typename _Val_types::pointer;
using const_pointer = typename _Val_types::const_pointer;
using reference = value_type&;
using const_reference = const value_type&;
_Vector_val() noexcept : _Myfirst(), _Mylast(), _Myend() {}
void _Swap_val(_Vector_val& _Right) noexcept {
this->_Swap_proxy_and_iterators(_Right);
_Swap_adl(_Myfirst, _Right._Myfirst);
_Swap_adl(_Mylast, _Right._Mylast);
_Swap_adl(_Myend, _Right._Myend);
}
void _Take_contents(_Vector_val& _Right) noexcept {
this->_Swap_proxy_and_iterators(_Right);
_Myfirst = _Right._Myfirst;
_Mylast = _Right._Mylast;
_Myend = _Right._Myend;
_Right._Myfirst = pointer();
_Right._Mylast = pointer();
_Right._Myend = pointer();
}
pointer _Myfirst; // pointer to beginning of array
pointer _Mylast; // pointer to current end of sequence
pointer _Myend; // pointer to end of array
};
// FUNCTION TEMPLATE _Unfancy_maybe_null
template <class _Ptrty>
auto _Unfancy_maybe_null(_Ptrty _Ptr) { // converts from a (potentially null) fancy pointer to a plain pointer
return _Ptr ? _STD addressof(*_Ptr) : nullptr;
}
template <class _Ty>
_Ty* _Unfancy_maybe_null(_Ty* _Ptr) { // do nothing for plain pointers
return _Ptr;
}
// CLASS TEMPLATE vector
template <class _Ty, class _Alloc = allocator<_Ty>>
class vector { // varying size array of values
private:
template <class>
friend class _Vb_val;
friend _Tidy_guard<vector>;
using _Alty = _Rebind_alloc_t<_Alloc, _Ty>;
using _Alty_traits = allocator_traits<_Alty>;
public:
static_assert(!_ENFORCE_MATCHING_ALLOCATORS || is_same_v<_Ty, typename _Alloc::value_type>,
_MISMATCHED_ALLOCATOR_MESSAGE("vector<T, Allocator>", "T"));
using value_type = _Ty;
using allocator_type = _Alloc;
using pointer = typename _Alty_traits::pointer;
using const_pointer = typename _Alty_traits::const_pointer;
using reference = _Ty&;
using const_reference = const _Ty&;
using size_type = typename _Alty_traits::size_type;
using difference_type = typename _Alty_traits::difference_type;
private:
using _Scary_val = _Vector_val<conditional_t<_Is_simple_alloc_v<_Alty>, _Simple_types<_Ty>,
_Vec_iter_types<_Ty, size_type, difference_type, pointer, const_pointer, _Ty&, const _Ty&>>>;
public:
using iterator = _Vector_iterator<_Scary_val>;
using const_iterator = _Vector_const_iterator<_Scary_val>;
using reverse_iterator = _STD reverse_iterator<iterator>;
using const_reverse_iterator = _STD reverse_iterator<const_iterator>;
vector() noexcept(is_nothrow_default_constructible_v<_Alty>) : _Mypair(_Zero_then_variadic_args_t()) {
_Mypair._Myval2._Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alty, _Getal()));
}
explicit vector(const _Alloc& _Al) noexcept : _Mypair(_One_then_variadic_args_t(), _Al) {
_Mypair._Myval2._Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alty, _Getal()));
}
private:
template <class _Ty2>
void _Construct_n_copies_of_ty(_CRT_GUARDOVERFLOW const size_type _Count, const _Ty2& _Val) {
auto&& _Alproxy = _GET_PROXY_ALLOCATOR(_Alty, _Getal());
auto& _My_data = _Mypair._Myval2;
_Container_proxy_ptr<_Alty> _Proxy(_Alproxy, _My_data);
if (_Count != 0) {
_Buy_nonzero(_Count);
_Tidy_guard<vector> _Guard{this};
_My_data._Mylast = _Ufill(_My_data._Myfirst, _Count, _Val);
_Guard._Target = nullptr;
}
_Proxy._Release();
}
public:
explicit vector(_CRT_GUARDOVERFLOW const size_type _Count, const _Alloc& _Al = _Alloc())
: _Mypair(_One_then_variadic_args_t(), _Al) {
_Construct_n_copies_of_ty(_Count, _Value_init_tag{});
}
vector(_CRT_GUARDOVERFLOW const size_type _Count, const _Ty& _Val, const _Alloc& _Al = _Alloc())
: _Mypair(_One_then_variadic_args_t(), _Al) {
_Construct_n_copies_of_ty(_Count, _Val);
}
private:
template <class _Iter>
void _Range_construct_or_tidy(_Iter _First, _Iter _Last, input_iterator_tag) {
_Tidy_guard<vector> _Guard{this};
for (; _First != _Last; ++_First) {
emplace_back(*_First); // performance note: emplace_back()'s strong guarantee is unnecessary here
}
_Guard._Target = nullptr;
}
template <class _Iter>
void _Range_construct_or_tidy(_Iter _First, _Iter _Last, forward_iterator_tag) {
const auto _Count = _Convert_size<size_type>(static_cast<size_t>(_STD distance(_First, _Last)));
if (_Count != 0) {
_Buy_nonzero(_Count);
_Tidy_guard<vector> _Guard{this};
auto& _My_data = _Mypair._Myval2;
_My_data._Mylast = _Ucopy(_First, _Last, _My_data._Myfirst);
_Guard._Target = nullptr;
}
}
public:
template <class _Iter, enable_if_t<_Is_iterator_v<_Iter>, int> = 0>
vector(_Iter _First, _Iter _Last, const _Alloc& _Al = _Alloc()) : _Mypair(_One_then_variadic_args_t(), _Al) {
auto&& _Alproxy = _GET_PROXY_ALLOCATOR(_Alty, _Getal());
_Container_proxy_ptr<_Alty> _Proxy(_Alproxy, _Mypair._Myval2);
_Adl_verify_range(_First, _Last);
_Range_construct_or_tidy(_Get_unwrapped(_First), _Get_unwrapped(_Last), _Iter_cat_t<_Iter>{});
_Proxy._Release();
}
vector(initializer_list<_Ty> _Ilist, const _Alloc& _Al = _Alloc()) : _Mypair(_One_then_variadic_args_t(), _Al) {
auto&& _Alproxy = _GET_PROXY_ALLOCATOR(_Alty, _Getal());
_Container_proxy_ptr<_Alty> _Proxy(_Alproxy, _Mypair._Myval2);
_Range_construct_or_tidy(_Ilist.begin(), _Ilist.end(), random_access_iterator_tag{});
_Proxy._Release();
}
vector(const vector& _Right)
: _Mypair(_One_then_variadic_args_t(), _Alty_traits::select_on_container_copy_construction(_Right._Getal())) {
auto&& _Alproxy = _GET_PROXY_ALLOCATOR(_Alty, _Getal());
auto& _My_data = _Mypair._Myval2;
const auto& _Right_data = _Right._Mypair._Myval2;
const pointer _Rightfirst = _Right_data._Myfirst;
const pointer _Rightlast = _Right_data._Mylast;
_Container_proxy_ptr<_Alty> _Proxy(_Alproxy, _My_data);
if (_Rightfirst != _Rightlast) {
_Buy_raw(static_cast<size_type>(_Rightlast - _Rightfirst));
_Tidy_guard<vector> _Guard{this};
_My_data._Mylast = _Ucopy(_Rightfirst, _Rightlast, _My_data._Myfirst);
_Guard._Target = nullptr;
}
_Proxy._Release();
}
vector(const vector& _Right, const _Alloc& _Al) : _Mypair(_One_then_variadic_args_t(), _Al) {
auto&& _Alproxy = _GET_PROXY_ALLOCATOR(_Alty, _Getal());
auto& _My_data = _Mypair._Myval2;
const auto& _Right_data = _Right._Mypair._Myval2;
const pointer _Rightfirst = _Right_data._Myfirst;
const pointer _Rightlast = _Right_data._Mylast;
_Container_proxy_ptr<_Alty> _Proxy(_Alproxy, _My_data);
if (_Rightfirst != _Rightlast) {
_Buy_raw(static_cast<size_type>(_Rightlast - _Rightfirst));
_Tidy_guard<vector> _Guard{this};
_My_data._Mylast = _Ucopy(_Rightfirst, _Rightlast, _My_data._Myfirst);
_Guard._Target = nullptr;
}
_Proxy._Release();
}
private:
void _Move_construct(vector& _Right, true_type) noexcept { // move from _Right, stealing its contents
_Mypair._Myval2._Take_contents(_Right._Mypair._Myval2);
}
void _Move_construct(vector& _Right, false_type) { // move from _Right, possibly moving its contents
if
_CONSTEXPR_IF(!_Alty_traits::is_always_equal::value) {
if (_Getal() != _Right._Getal()) {
const auto& _Right_data = _Right._Mypair._Myval2;
const pointer _Rightfirst = _Right_data._Myfirst;
const pointer _Rightlast = _Right_data._Mylast;
if (_Rightfirst != _Rightlast) {
_Buy_raw(static_cast<size_type>(_Rightlast - _Rightfirst));
_Tidy_guard<vector> _Guard{this};
auto& _My_data = _Mypair._Myval2;
_My_data._Mylast = _Umove(_Rightfirst, _Rightlast, _My_data._Myfirst);
_Guard._Target = nullptr;
}
return;
}
}
_Move_construct(_Right, true_type{});
}
public:
vector(vector&& _Right) noexcept : _Mypair(_One_then_variadic_args_t(), _STD move(_Right._Getal())) {
_Mypair._Myval2._Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alty, _Getal()));
_Move_construct(_Right, true_type{});
}
vector(vector&& _Right, const _Alloc& _Al) noexcept(_Alty_traits::is_always_equal::value) // strengthened
: _Mypair(_One_then_variadic_args_t(), _Al) {
auto&& _Alproxy = _GET_PROXY_ALLOCATOR(_Alty, _Getal());
_Container_proxy_ptr<_Alty> _Proxy(_Alproxy, _Mypair._Myval2);
_Move_construct(_Right, typename _Alty_traits::is_always_equal::type{});
_Proxy._Release();
}
private:
void _Move_assign(vector& _Right, _Equal_allocators) noexcept {
_Tidy();
_Pocma(_Getal(), _Right._Getal());
_Mypair._Myval2._Take_contents(_Right._Mypair._Myval2);
}
void _Move_assign(vector& _Right, _Propagate_allocators) noexcept /* terminates */ {
_Tidy();
#if _ITERATOR_DEBUG_LEVEL != 0
if (_Getal() != _Right._Getal()) {
// intentionally slams into noexcept on OOM, TRANSITION, VSO-466800
_Mypair._Myval2._Reload_proxy(
_GET_PROXY_ALLOCATOR(_Alty, _Getal()), _GET_PROXY_ALLOCATOR(_Alty, _Right._Getal()));
}
#endif
_Pocma(_Getal(), _Right._Getal());
_Mypair._Myval2._Take_contents(_Right._Mypair._Myval2);
}
void _Move_assign(vector& _Right, _No_propagate_allocators) {
if (_Getal() == _Right._Getal()) {
_Move_assign(_Right, _Equal_allocators{});
} else {
auto& _Right_data = _Right._Mypair._Myval2;
const pointer _First = _Right_data._Myfirst;
const pointer _Last = _Right_data._Mylast;
const auto _Newsize = static_cast<size_type>(_Last - _First);
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
_My_data._Orphan_all();
const auto _Oldcapacity = static_cast<size_type>(_My_data._Myend - _Myfirst);
#if _HAS_IF_CONSTEXPR
if constexpr (conjunction_v<bool_constant<_Ptr_copy_cat<_Ty*, _Ty*>::_Trivially_copyable>,
_Uses_default_construct<_Alty, _Ty*, _Ty>, _Uses_default_destroy<_Alty, _Ty*>>) {
if (_Newsize > _Oldcapacity) {
_Clear_and_reserve_geometric(_Newsize);
}
_Mylast = _Refancy<pointer>(_Copy_memmove(_Unfancy(_First), _Unfancy(_Last), _Unfancy(_Myfirst)));
} else
#endif // _HAS_IF_CONSTEXPR
{
auto _Oldsize = static_cast<size_type>(_Mylast - _Myfirst);
if (_Newsize > _Oldsize) {
if (_Newsize > _Oldcapacity) { // reallocate
_Clear_and_reserve_geometric(_Newsize);
_Oldsize = 0;
}
const pointer _Mid = _First + _Oldsize;
_Move_unchecked(_First, _Mid, _Myfirst);
_Mylast = _Umove(_Mid, _Last, _Mylast);
} else {
const pointer _Newlast = _Myfirst + _Newsize;
_Move_unchecked(_First, _Last, _Myfirst);
_Destroy(_Newlast, _Mylast);
_Mylast = _Newlast;
}
}
}
}
public:
vector& operator=(vector&& _Right) noexcept(noexcept(_Move_assign(_Right, _Choose_pocma<_Alty>{}))) {
if (this != _STD addressof(_Right)) {
_Move_assign(_Right, _Choose_pocma<_Alty>{});
}
return *this;
}
~vector() noexcept {
_Tidy();
#if _ITERATOR_DEBUG_LEVEL != 0
auto&& _Alproxy = _GET_PROXY_ALLOCATOR(_Alty, _Getal());
_Delete_plain_internal(_Alproxy, _STD exchange(_Mypair._Myval2._Myproxy, nullptr));
#endif // _ITERATOR_DEBUG_LEVEL != 0
}
private:
template <class... _Valty>
decltype(auto) _Emplace_back_with_unused_capacity(_Valty&&... _Val) {
// insert by perfectly forwarding into element at end, provide strong guarantee
auto& _My_data = _Mypair._Myval2;
pointer& _Mylast = _My_data._Mylast;
_STL_INTERNAL_CHECK(_Mylast != _My_data._Myend); // check that we have unused capacity
_Alty_traits::construct(_Getal(), _Unfancy(_Mylast), _STD forward<_Valty>(_Val)...);
_Orphan_range(_Mylast, _Mylast);
_Ty& _Result = *_Mylast;
++_Mylast;
#if _HAS_CXX17
return _Result;
#else // ^^^ _HAS_CXX17 ^^^ // vvv !_HAS_CXX17 vvv
(void) _Result;
#endif // _HAS_CXX17
}
public:
template <class... _Valty>
decltype(auto) emplace_back(_Valty&&... _Val) {
// insert by perfectly forwarding into element at end, provide strong guarantee
auto& _My_data = _Mypair._Myval2;
pointer& _Mylast = _My_data._Mylast;
if (_Mylast != _My_data._Myend) {
return _Emplace_back_with_unused_capacity(_STD forward<_Valty>(_Val)...);
}
_Ty& _Result = *_Emplace_reallocate(_Mylast, _STD forward<_Valty>(_Val)...);
#if _HAS_CXX17
return _Result;
#else // ^^^ _HAS_CXX17 ^^^ // vvv !_HAS_CXX17 vvv
(void) _Result;
#endif // _HAS_CXX17
}
void push_back(const _Ty& _Val) { // insert element at end, provide strong guarantee
emplace_back(_Val);
}
void push_back(_Ty&& _Val) { // insert by moving into element at end, provide strong guarantee
emplace_back(_STD move(_Val));
}
template <class... _Valty>
pointer _Emplace_reallocate(const pointer _Whereptr, _Valty&&... _Val) {
// reallocate and insert by perfectly forwarding _Val at _Whereptr
_Alty& _Al = _Getal();
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
_STL_INTERNAL_CHECK(_Mylast == _My_data._Myend); // check that we have no unused capacity
const auto _Whereoff = static_cast<size_type>(_Whereptr - _Myfirst);
const auto _Oldsize = static_cast<size_type>(_Mylast - _Myfirst);
if (_Oldsize == max_size()) {
_Xlength();
}
const size_type _Newsize = _Oldsize + 1;
const size_type _Newcapacity = _Calculate_growth(_Newsize);
const pointer _Newvec = _Al.allocate(_Newcapacity);
const pointer _Constructed_last = _Newvec + _Whereoff + 1;
pointer _Constructed_first = _Constructed_last;
_TRY_BEGIN
_Alty_traits::construct(_Al, _Unfancy(_Newvec + _Whereoff), _STD forward<_Valty>(_Val)...);
_Constructed_first = _Newvec + _Whereoff;
if (_Whereptr == _Mylast) { // at back, provide strong guarantee
_Umove_if_noexcept(_Myfirst, _Mylast, _Newvec);
} else { // provide basic guarantee
_Umove(_Myfirst, _Whereptr, _Newvec);
_Constructed_first = _Newvec;
_Umove(_Whereptr, _Mylast, _Newvec + _Whereoff + 1);
}
_CATCH_ALL
_Destroy(_Constructed_first, _Constructed_last);
_Al.deallocate(_Newvec, _Newcapacity);
_RERAISE;
_CATCH_END
_Change_array(_Newvec, _Newsize, _Newcapacity);
return _Newvec + _Whereoff;
}
template <class... _Valty>
iterator emplace(const_iterator _Where, _Valty&&... _Val) { // insert by perfectly forwarding _Val at _Where
const pointer _Whereptr = _Where._Ptr;
auto& _My_data = _Mypair._Myval2;
const pointer _Oldlast = _My_data._Mylast;
#if _ITERATOR_DEBUG_LEVEL == 2
_STL_VERIFY(
_Where._Getcont() == _STD addressof(_My_data) && _Whereptr >= _My_data._Myfirst && _Oldlast >= _Whereptr,
"vector emplace iterator outside range");
#endif // _ITERATOR_DEBUG_LEVEL == 2
if (_Oldlast != _My_data._Myend) {
if (_Whereptr == _Oldlast) { // at back, provide strong guarantee
_Emplace_back_with_unused_capacity(_STD forward<_Valty>(_Val)...);
} else {
auto& _Al = _Getal();
_Alloc_temporary<_Alty> _Obj(_Al, _STD forward<_Valty>(_Val)...); // handle aliasing
// after constructing _Obj, provide basic guarantee
_Orphan_range(_Whereptr, _Oldlast);
_Alty_traits::construct(_Al, _Unfancy(_Oldlast), _STD move(_Oldlast[-1]));
++_My_data._Mylast;
_Move_backward_unchecked(_Whereptr, _Oldlast - 1, _Oldlast);
*_Whereptr = _STD move(_Obj._Storage._Value);
}
return _Make_iterator(_Whereptr);
}
return _Make_iterator(_Emplace_reallocate(_Whereptr, _STD forward<_Valty>(_Val)...));
}
iterator insert(const_iterator _Where, const _Ty& _Val) { // insert _Val at _Where
return emplace(_Where, _Val);
}
iterator insert(const_iterator _Where, _Ty&& _Val) { // insert by moving _Val at _Where
return emplace(_Where, _STD move(_Val));
}
iterator insert(const_iterator _Where, _CRT_GUARDOVERFLOW const size_type _Count, const _Ty& _Val) {
// insert _Count * _Val at _Where
const pointer _Whereptr = _Where._Ptr;
auto& _My_data = _Mypair._Myval2;
pointer& _Mylast = _My_data._Mylast;
const pointer _Oldfirst = _My_data._Myfirst;
const pointer _Oldlast = _Mylast;
#if _ITERATOR_DEBUG_LEVEL == 2
_STL_VERIFY(_Where._Getcont() == _STD addressof(_My_data) && _Whereptr >= _Oldfirst && _Oldlast >= _Whereptr,
"vector insert iterator outside range");
#endif // _ITERATOR_DEBUG_LEVEL == 2
const auto _Whereoff = static_cast<size_type>(_Whereptr - _Oldfirst);
const auto _Unused_capacity = static_cast<size_type>(_My_data._Myend - _Oldlast);
const bool _One_at_back = _Count == 1 && _Whereptr == _Oldlast;
if (_Count == 0) { // nothing to do, avoid invalidating iterators
} else if (_Count > _Unused_capacity) { // reallocate
const auto _Oldsize = static_cast<size_type>(_Oldlast - _Oldfirst);
if (_Count > max_size() - _Oldsize) {
_Xlength();
}
const size_type _Newsize = _Oldsize + _Count;
const size_type _Newcapacity = _Calculate_growth(_Newsize);
const pointer _Newvec = _Getal().allocate(_Newcapacity);
const pointer _Constructed_last = _Newvec + _Whereoff + _Count;
pointer _Constructed_first = _Constructed_last;
_TRY_BEGIN
_Ufill(_Newvec + _Whereoff, _Count, _Val);
_Constructed_first = _Newvec + _Whereoff;
if (_One_at_back) { // provide strong guarantee
_Umove_if_noexcept(_Oldfirst, _Oldlast, _Newvec);
} else { // provide basic guarantee
_Umove(_Oldfirst, _Whereptr, _Newvec);
_Constructed_first = _Newvec;
_Umove(_Whereptr, _Oldlast, _Newvec + _Whereoff + _Count);
}
_CATCH_ALL
_Destroy(_Constructed_first, _Constructed_last);
_Getal().deallocate(_Newvec, _Newcapacity);
_RERAISE;
_CATCH_END
_Change_array(_Newvec, _Newsize, _Newcapacity);
} else if (_One_at_back) { // provide strong guarantee
_Emplace_back_with_unused_capacity(_Val);
} else { // provide basic guarantee
const _Alloc_temporary<_Alty> _Tmp_storage(_Getal(), _Val); // handle aliasing
const auto& _Tmp = _Tmp_storage._Storage._Value;
const auto _Affected_elements = static_cast<size_type>(_Oldlast - _Whereptr);
_Orphan_range(_Whereptr, _Oldlast);
if (_Count > _Affected_elements) { // new stuff spills off end
_Mylast = _Ufill(_Oldlast, _Count - _Affected_elements, _Tmp);
_Mylast = _Umove(_Whereptr, _Oldlast, _Mylast);
_STD fill(_Whereptr, _Oldlast, _Tmp);
} else { // new stuff can all be assigned
_Mylast = _Umove(_Oldlast - _Count, _Oldlast, _Oldlast);
_Move_backward_unchecked(_Whereptr, _Oldlast - _Count, _Oldlast);
_STD fill(_Whereptr, _Whereptr + _Count, _Tmp);
}
}
return _Make_iterator_offset(_Whereoff);
}
private:
template <class _Iter>
void _Insert_range(const_iterator _Where, _Iter _First, _Iter _Last, input_iterator_tag) {
// insert input range [_First, _Last) at _Where
if (_First == _Last) {
return; // nothing to do, avoid invalidating iterators
}
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
const auto _Whereoff = static_cast<size_type>(_Where._Ptr - _Myfirst);
const auto _Oldsize = static_cast<size_type>(_Mylast - _Myfirst);
// For one-at-back, provide strong guarantee.
// Otherwise, provide basic guarantee (despite N4659 26.3.11.5 [vector.modifiers]/1).
// Performance note: except for one-at-back, emplace_back()'s strong guarantee is unnecessary here.
for (; _First != _Last; ++_First) {
emplace_back(*_First);
}
_Orphan_range(_Myfirst + _Whereoff, _Myfirst + _Oldsize);
_STD rotate(_Myfirst + _Whereoff, _Myfirst + _Oldsize, _Mylast);
}
template <class _Iter>
void _Insert_range(const_iterator _Where, _Iter _First, _Iter _Last, forward_iterator_tag) {
// insert forward range [_First, _Last) at _Where
const pointer _Whereptr = _Where._Ptr;
const auto _Count = _Convert_size<size_type>(static_cast<size_t>(_STD distance(_First, _Last)));
auto& _My_data = _Mypair._Myval2;
pointer& _Mylast = _My_data._Mylast;
const pointer _Oldfirst = _My_data._Myfirst;
const pointer _Oldlast = _Mylast;
const auto _Unused_capacity = static_cast<size_type>(_My_data._Myend - _Oldlast);
if (_Count == 0) { // nothing to do, avoid invalidating iterators
} else if (_Count > _Unused_capacity) { // reallocate
const auto _Oldsize = static_cast<size_type>(_Oldlast - _Oldfirst);
if (_Count > max_size() - _Oldsize) {
_Xlength();
}
const size_type _Newsize = _Oldsize + _Count;
const size_type _Newcapacity = _Calculate_growth(_Newsize);
const pointer _Newvec = _Getal().allocate(_Newcapacity);
const auto _Whereoff = static_cast<size_type>(_Whereptr - _Oldfirst);
const pointer _Constructed_last = _Newvec + _Whereoff + _Count;
pointer _Constructed_first = _Constructed_last;
_TRY_BEGIN
_Ucopy(_First, _Last, _Newvec + _Whereoff);
_Constructed_first = _Newvec + _Whereoff;
if (_Count == 1 && _Whereptr == _Oldlast) { // one at back, provide strong guarantee
_Umove_if_noexcept(_Oldfirst, _Oldlast, _Newvec);
} else { // provide basic guarantee
_Umove(_Oldfirst, _Whereptr, _Newvec);
_Constructed_first = _Newvec;
_Umove(_Whereptr, _Oldlast, _Newvec + _Whereoff + _Count);
}
_CATCH_ALL
_Destroy(_Constructed_first, _Constructed_last);
_Getal().deallocate(_Newvec, _Newcapacity);
_RERAISE;
_CATCH_END
_Change_array(_Newvec, _Newsize, _Newcapacity);
} else { // Attempt to provide the strong guarantee for EmplaceConstructible failure.
// If we encounter copy/move construction/assignment failure, provide the basic guarantee.
// (For one-at-back, this provides the strong guarantee.)
const auto _Affected_elements = static_cast<size_type>(_Oldlast - _Whereptr);
if (_Count < _Affected_elements) { // some affected elements must be assigned
_Mylast = _Umove(_Oldlast - _Count, _Oldlast, _Oldlast);
_Move_backward_unchecked(_Whereptr, _Oldlast - _Count, _Oldlast);
_Destroy(_Whereptr, _Whereptr + _Count);
_TRY_BEGIN
_Ucopy(_First, _Last, _Whereptr);
_CATCH_ALL
// glue the broken pieces back together
_TRY_BEGIN
_Umove(_Whereptr + _Count, _Whereptr + 2 * _Count, _Whereptr);
_CATCH_ALL
// vaporize the detached piece
_Orphan_range(_Whereptr, _Oldlast);
_Destroy(_Whereptr + _Count, _Mylast);
_Mylast = _Whereptr;
_RERAISE;
_CATCH_END
_Move_unchecked(_Whereptr + 2 * _Count, _Mylast, _Whereptr + _Count);
_Destroy(_Oldlast, _Mylast);
_Mylast = _Oldlast;
_RERAISE;
_CATCH_END
} else { // affected elements don't overlap before/after
const pointer _Relocated = _Whereptr + _Count;
_Mylast = _Umove(_Whereptr, _Oldlast, _Relocated);
_Destroy(_Whereptr, _Oldlast);
_TRY_BEGIN
_Ucopy(_First, _Last, _Whereptr);
_CATCH_ALL
// glue the broken pieces back together
_TRY_BEGIN
_Umove(_Relocated, _Mylast, _Whereptr);
_CATCH_ALL
// vaporize the detached piece
_Orphan_range(_Whereptr, _Oldlast);
_Destroy(_Relocated, _Mylast);
_Mylast = _Whereptr;
_RERAISE;
_CATCH_END
_Destroy(_Relocated, _Mylast);
_Mylast = _Oldlast;
_RERAISE;
_CATCH_END
}
_Orphan_range(_Whereptr, _Oldlast);
}
}
public:
template <class _Iter, enable_if_t<_Is_iterator_v<_Iter>, int> = 0>
iterator insert(const_iterator _Where, _Iter _First, _Iter _Last) {
const pointer _Whereptr = _Where._Ptr;
auto& _My_data = _Mypair._Myval2;
const pointer _Oldfirst = _My_data._Myfirst;
#if _ITERATOR_DEBUG_LEVEL == 2
_STL_VERIFY(
_Where._Getcont() == _STD addressof(_My_data) && _Whereptr >= _Oldfirst && _My_data._Mylast >= _Whereptr,
"vector insert iterator outside range");
#endif // _ITERATOR_DEBUG_LEVEL == 2
_Adl_verify_range(_First, _Last);
const auto _Whereoff = static_cast<size_type>(_Whereptr - _Oldfirst);
_Insert_range(_Where, _Get_unwrapped(_First), _Get_unwrapped(_Last), _Iter_cat_t<_Iter>{});
return _Make_iterator_offset(_Whereoff);
}
iterator insert(const_iterator _Where, initializer_list<_Ty> _Ilist) {
return insert(_Where, _Ilist.begin(), _Ilist.end());
}
void assign(_CRT_GUARDOVERFLOW const size_type _Newsize, const _Ty& _Val) { // assign _Newsize * _Val
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
_My_data._Orphan_all();
auto _Oldsize = static_cast<size_type>(_Mylast - _Myfirst);
if (_Newsize > _Oldsize) {
const auto _Oldcapacity = static_cast<size_type>(_My_data._Myend - _Myfirst);
if (_Newsize > _Oldcapacity) { // reallocate
_Clear_and_reserve_geometric(_Newsize);
_Oldsize = 0;
} else {
_STD fill(_Myfirst, _Mylast, _Val);
}
_Mylast = _Ufill(_Mylast, _Newsize - _Oldsize, _Val);
} else {
const pointer _Newlast = _Myfirst + _Newsize;
_STD fill(_Myfirst, _Newlast, _Val);
_Destroy(_Newlast, _Mylast);
_Mylast = _Newlast;
}
}
private:
template <class _Iter>
void _Assign_range(_Iter _First, _Iter _Last, input_iterator_tag) { // assign input range [_First, _Last)
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
_My_data._Orphan_all();
pointer _Next = _Myfirst;
for (; _First != _Last && _Next != _Mylast; ++_First, (void) ++_Next) {
*_Next = *_First;
}
// Code size optimization: we've exhausted only the source, only the dest, or both.
// If we've exhausted only the source: we Trim, then Append does nothing.
// If we've exhausted only the dest: Trim does nothing, then we Append.
// If we've exhausted both: Trim does nothing, then Append does nothing.
// Trim.
_Destroy(_Next, _Mylast);
_Mylast = _Next;
// Append.
for (; _First != _Last; ++_First) {
emplace_back(*_First); // performance note: emplace_back()'s strong guarantee is unnecessary here
}
}
template <class _Iter>
void _Assign_range(_Iter _First, _Iter _Last, forward_iterator_tag) { // assign forward range [_First, _Last)
const auto _Newsize = _Convert_size<size_type>(static_cast<size_t>(_STD distance(_First, _Last)));
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
pointer& _Myend = _My_data._Myend;
_My_data._Orphan_all();
#if _HAS_IF_CONSTEXPR
if constexpr (conjunction_v<bool_constant<_Ptr_copy_cat<_Iter, _Ty*>::_Trivially_copyable>,
_Uses_default_construct<_Alty, _Ty*, decltype(*_First)>,
_Uses_default_destroy<_Alty, _Ty*>>) {
const auto _Oldcapacity = static_cast<size_type>(_Myend - _Myfirst);
if (_Newsize > _Oldcapacity) {
_Clear_and_reserve_geometric(_Newsize);
}
_Mylast = _Refancy<pointer>(_Copy_memmove(_First, _Last, _Unfancy(_Myfirst)));
} else
#endif // _HAS_IF_CONSTEXPR
{
auto _Oldsize = static_cast<size_type>(_Mylast - _Myfirst);
if (_Newsize > _Oldsize) {
const auto _Oldcapacity = static_cast<size_type>(_Myend - _Myfirst);
if (_Newsize > _Oldcapacity) { // reallocate
_Clear_and_reserve_geometric(_Newsize);
_Oldsize = 0;
}
// performance note: traversing [_First, _Mid) twice
const _Iter _Mid = _STD next(_First, static_cast<difference_type>(_Oldsize));
_Copy_unchecked(_First, _Mid, _Myfirst);
_Mylast = _Ucopy(_Mid, _Last, _Mylast);
} else {
const pointer _Newlast = _Myfirst + _Newsize;
_Copy_unchecked(_First, _Last, _Myfirst);
_Destroy(_Newlast, _Mylast);
_Mylast = _Newlast;
}
}
}
public:
template <class _Iter, enable_if_t<_Is_iterator_v<_Iter>, int> = 0>
void assign(_Iter _First, _Iter _Last) {
_Adl_verify_range(_First, _Last);
_Assign_range(_Get_unwrapped(_First), _Get_unwrapped(_Last), _Iter_cat_t<_Iter>{});
}
void assign(initializer_list<_Ty> _Ilist) {
_Assign_range(_Ilist.begin(), _Ilist.end(), random_access_iterator_tag{});
}
private:
void _Copy_assign(const vector& _Right, false_type) {
_Pocca(_Getal(), _Right._Getal());
auto& _Right_data = _Right._Mypair._Myval2;
assign(_Right_data._Myfirst, _Right_data._Mylast);
}
void _Copy_assign(const vector& _Right, true_type) {
if (_Getal() != _Right._Getal()) {
_Tidy();
_Mypair._Myval2._Reload_proxy(
_GET_PROXY_ALLOCATOR(_Alty, _Getal()), _GET_PROXY_ALLOCATOR(_Alty, _Right._Getal()));
}
_Copy_assign(_Right, false_type{});
}
public:
vector& operator=(const vector& _Right) {
if (this != _STD addressof(_Right)) {
_Copy_assign(_Right, _Choose_pocca<_Alty>{});
}
return *this;
}
vector& operator=(initializer_list<_Ty> _Ilist) {
_Assign_range(_Ilist.begin(), _Ilist.end(), random_access_iterator_tag{});
return *this;
}
private:
template <class _Ty2>
void _Resize_reallocate(const size_type _Newsize, const _Ty2& _Val) {
if (_Newsize > max_size()) {
_Xlength();
}
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
const auto _Oldsize = static_cast<size_type>(_Mylast - _Myfirst);
const size_type _Newcapacity = _Calculate_growth(_Newsize);
const pointer _Newvec = _Getal().allocate(_Newcapacity);
const pointer _Appended_first = _Newvec + _Oldsize;
pointer _Appended_last = _Appended_first;
_TRY_BEGIN
_Appended_last = _Ufill(_Appended_first, _Newsize - _Oldsize, _Val);
_Umove_if_noexcept(_Myfirst, _Mylast, _Newvec);
_CATCH_ALL
_Destroy(_Appended_first, _Appended_last);
_Getal().deallocate(_Newvec, _Newcapacity);
_RERAISE;
_CATCH_END
_Change_array(_Newvec, _Newsize, _Newcapacity);
}
template <class _Ty2>
void _Resize(const size_type _Newsize, const _Ty2& _Val) { // trim or append elements, provide strong guarantee
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
const auto _Oldsize = static_cast<size_type>(_Mylast - _Myfirst);
if (_Newsize < _Oldsize) { // trim
const pointer _Newlast = _Myfirst + _Newsize;
_Orphan_range(_Newlast, _Mylast);
_Destroy(_Newlast, _Mylast);
_Mylast = _Newlast;
return;
}
if (_Newsize > _Oldsize) { // append
const auto _Oldcapacity = static_cast<size_type>(_My_data._Myend - _Myfirst);
if (_Newsize > _Oldcapacity) { // reallocate
_Resize_reallocate(_Newsize, _Val);
return;
}
const pointer _Oldlast = _Mylast;
_Mylast = _Ufill(_Oldlast, _Newsize - _Oldsize, _Val);
_Orphan_range(_Oldlast, _Oldlast);
}
// if _Newsize == _Oldsize, do nothing; avoid invalidating iterators
}
public:
void resize(_CRT_GUARDOVERFLOW const size_type _Newsize) {
// trim or append value-initialized elements, provide strong guarantee
_Resize(_Newsize, _Value_init_tag{});
}
void resize(_CRT_GUARDOVERFLOW const size_type _Newsize, const _Ty& _Val) {
// trim or append copies of _Val, provide strong guarantee
_Resize(_Newsize, _Val);
}
private:
void _Reallocate_exactly(const size_type _Newcapacity) {
// set capacity to _Newcapacity (without geometric growth), provide strong guarantee
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
const auto _Size = static_cast<size_type>(_Mylast - _Myfirst);
const pointer _Newvec = _Getal().allocate(_Newcapacity);
_TRY_BEGIN
_Umove_if_noexcept(_Myfirst, _Mylast, _Newvec);
_CATCH_ALL
_Getal().deallocate(_Newvec, _Newcapacity);
_RERAISE;
_CATCH_END
_Change_array(_Newvec, _Size, _Newcapacity);
}
void _Clear_and_reserve_geometric(const size_type _Newsize) {
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
pointer& _Myend = _My_data._Myend;
#if _ITERATOR_DEBUG_LEVEL != 0 && defined(_ENABLE_STL_INTERNAL_CHECK)
_STL_INTERNAL_CHECK(_Newsize != 0);
{
_Lockit _Lock(_LOCK_DEBUG);
_STL_INTERNAL_CHECK(!_My_data._Myproxy->_Myfirstiter); // asserts that all iterators are orphaned
} // unlock
#endif // _ITERATOR_DEBUG_LEVEL != 0 && defined(_ENABLE_STL_INTERNAL_CHECK)
if (_Newsize > max_size()) {
_Xlength();
}
const size_type _Newcapacity = _Calculate_growth(_Newsize);
if (_Myfirst) { // destroy and deallocate old array
_Destroy(_Myfirst, _Mylast);
_Getal().deallocate(_Myfirst, static_cast<size_type>(_Myend - _Myfirst));
_Myfirst = pointer();
_Mylast = pointer();
_Myend = pointer();
}
_Buy_raw(_Newcapacity);
}
public:
void reserve(_CRT_GUARDOVERFLOW const size_type _Newcapacity) {
// increase capacity to _Newcapacity (without geometric growth), provide strong guarantee
if (_Newcapacity > capacity()) { // something to do (reserve() never shrinks)
if (_Newcapacity > max_size()) {
_Xlength();
}
_Reallocate_exactly(_Newcapacity);
}
}
void shrink_to_fit() { // reduce capacity to size, provide strong guarantee
auto& _My_data = _Mypair._Myval2;
const pointer _Oldlast = _My_data._Mylast;
if (_Oldlast != _My_data._Myend) { // something to do
const pointer _Oldfirst = _My_data._Myfirst;
if (_Oldfirst == _Oldlast) {
_Tidy();
} else {
_Reallocate_exactly(static_cast<size_type>(_Oldlast - _Oldfirst));
}
}
}
void pop_back() noexcept /* strengthened */ {
auto& _My_data = _Mypair._Myval2;
pointer& _Mylast = _My_data._Mylast;
#if _ITERATOR_DEBUG_LEVEL == 2
_STL_VERIFY(_My_data._Myfirst != _Mylast, "vector empty before pop");
_Orphan_range(_Mylast - 1, _Mylast);
#endif // _ITERATOR_DEBUG_LEVEL == 2
_Alty_traits::destroy(_Getal(), _Unfancy(_Mylast - 1));
--_Mylast;
}
iterator erase(const_iterator _Where) noexcept(is_nothrow_move_assignable_v<value_type>) /* strengthened */ {
const pointer _Whereptr = _Where._Ptr;
auto& _My_data = _Mypair._Myval2;
pointer& _Mylast = _My_data._Mylast;
#if _ITERATOR_DEBUG_LEVEL == 2
_STL_VERIFY(
_Where._Getcont() == _STD addressof(_My_data) && _Whereptr >= _My_data._Myfirst && _Mylast > _Whereptr,
"vector erase iterator outside range");
_Orphan_range(_Whereptr, _Mylast);
#endif // _ITERATOR_DEBUG_LEVEL == 2
_Move_unchecked(_Whereptr + 1, _Mylast, _Whereptr);
_Alty_traits::destroy(_Getal(), _Unfancy(_Mylast - 1));
--_Mylast;
return iterator(_Whereptr, _STD addressof(_My_data));
}
iterator erase(const_iterator _First, const_iterator _Last) noexcept(
is_nothrow_move_assignable_v<value_type>) /* strengthened */ {
const pointer _Firstptr = _First._Ptr;
const pointer _Lastptr = _Last._Ptr;
auto& _My_data = _Mypair._Myval2;
pointer& _Mylast = _My_data._Mylast;
#if _ITERATOR_DEBUG_LEVEL == 2
_STL_VERIFY(_First._Getcont() == _STD addressof(_My_data) && _Last._Getcont() == _STD addressof(_My_data)
&& _Firstptr >= _My_data._Myfirst && _Lastptr >= _Firstptr && _Mylast >= _Lastptr,
"vector erase iterator outside range");
#endif // _ITERATOR_DEBUG_LEVEL == 2
if (_Firstptr != _Lastptr) { // something to do, invalidate iterators
_Orphan_range(_Firstptr, _Mylast);
const pointer _Newlast = _Move_unchecked(_Lastptr, _Mylast, _Firstptr);
_Destroy(_Newlast, _Mylast);
_Mylast = _Newlast;
}
return iterator(_Firstptr, _STD addressof(_My_data));
}
void clear() noexcept { // erase all
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
_My_data._Orphan_all();
_Destroy(_Myfirst, _Mylast);
_Mylast = _Myfirst;
}
public:
void swap(vector& _Right) noexcept /* strengthened */ {
if (this != _STD addressof(_Right)) {
_Pocs(_Getal(), _Right._Getal());
_Mypair._Myval2._Swap_val(_Right._Mypair._Myval2);
}
}
_NODISCARD _Ty* data() noexcept {
return _Unfancy_maybe_null(_Mypair._Myval2._Myfirst);
}
_NODISCARD const _Ty* data() const noexcept {
return _Unfancy_maybe_null(_Mypair._Myval2._Myfirst);
}
_NODISCARD iterator begin() noexcept {
auto& _My_data = _Mypair._Myval2;
return iterator(_My_data._Myfirst, _STD addressof(_My_data));
}
_NODISCARD const_iterator begin() const noexcept {
auto& _My_data = _Mypair._Myval2;
return const_iterator(_My_data._Myfirst, _STD addressof(_My_data));
}
_NODISCARD iterator end() noexcept {
auto& _My_data = _Mypair._Myval2;
return iterator(_My_data._Mylast, _STD addressof(_My_data));
}
_NODISCARD const_iterator end() const noexcept {
auto& _My_data = _Mypair._Myval2;
return const_iterator(_My_data._Mylast, _STD addressof(_My_data));
}
_NODISCARD reverse_iterator rbegin() noexcept {
return reverse_iterator(end());
}
_NODISCARD const_reverse_iterator rbegin() const noexcept {
return const_reverse_iterator(end());
}
_NODISCARD reverse_iterator rend() noexcept {
return reverse_iterator(begin());
}
_NODISCARD const_reverse_iterator rend() const noexcept {
return const_reverse_iterator(begin());
}
_NODISCARD const_iterator cbegin() const noexcept {
return begin();
}
_NODISCARD const_iterator cend() const noexcept {
return end();
}
_NODISCARD const_reverse_iterator crbegin() const noexcept {
return rbegin();
}
_NODISCARD const_reverse_iterator crend() const noexcept {
return rend();
}
pointer _Unchecked_begin() noexcept {
return _Mypair._Myval2._Myfirst;
}
const_pointer _Unchecked_begin() const noexcept {
return _Mypair._Myval2._Myfirst;
}
pointer _Unchecked_end() noexcept {
return _Mypair._Myval2._Mylast;
}
const_pointer _Unchecked_end() const noexcept {
return _Mypair._Myval2._Mylast;
}
_NODISCARD bool empty() const noexcept {
auto& _My_data = _Mypair._Myval2;
return _My_data._Myfirst == _My_data._Mylast;
}
_NODISCARD size_type size() const noexcept {
auto& _My_data = _Mypair._Myval2;
return static_cast<size_type>(_My_data._Mylast - _My_data._Myfirst);
}
_NODISCARD size_type max_size() const noexcept {
return _Min_value(
static_cast<size_type>((numeric_limits<difference_type>::max)()), _Alty_traits::max_size(_Getal()));
}
_NODISCARD size_type capacity() const noexcept {
auto& _My_data = _Mypair._Myval2;
return static_cast<size_type>(_My_data._Myend - _My_data._Myfirst);
}
_NODISCARD _Ty& operator[](const size_type _Pos) noexcept /* strengthened */ {
auto& _My_data = _Mypair._Myval2;
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(
_Pos < static_cast<size_type>(_My_data._Mylast - _My_data._Myfirst), "vector subscript out of range");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return _My_data._Myfirst[_Pos];
}
_NODISCARD const _Ty& operator[](const size_type _Pos) const noexcept /* strengthened */ {
auto& _My_data = _Mypair._Myval2;
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(
_Pos < static_cast<size_type>(_My_data._Mylast - _My_data._Myfirst), "vector subscript out of range");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return _My_data._Myfirst[_Pos];
}
_NODISCARD _Ty& at(const size_type _Pos) {
auto& _My_data = _Mypair._Myval2;
if (static_cast<size_type>(_My_data._Mylast - _My_data._Myfirst) <= _Pos) {
_Xrange();
}
return _My_data._Myfirst[_Pos];
}
_NODISCARD const _Ty& at(const size_type _Pos) const {
auto& _My_data = _Mypair._Myval2;
if (static_cast<size_type>(_My_data._Mylast - _My_data._Myfirst) <= _Pos) {
_Xrange();
}
return _My_data._Myfirst[_Pos];
}
_NODISCARD _Ty& front() noexcept /* strengthened */ {
auto& _My_data = _Mypair._Myval2;
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(_My_data._Myfirst != _My_data._Mylast, "front() called on empty vector");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return *_My_data._Myfirst;
}
_NODISCARD const _Ty& front() const noexcept /* strengthened */ {
auto& _My_data = _Mypair._Myval2;
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(_My_data._Myfirst != _My_data._Mylast, "front() called on empty vector");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return *_My_data._Myfirst;
}
_NODISCARD _Ty& back() noexcept /* strengthened */ {
auto& _My_data = _Mypair._Myval2;
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(_My_data._Myfirst != _My_data._Mylast, "back() called on empty vector");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return _My_data._Mylast[-1];
}
_NODISCARD const _Ty& back() const noexcept /* strengthened */ {
auto& _My_data = _Mypair._Myval2;
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(_My_data._Myfirst != _My_data._Mylast, "back() called on empty vector");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return _My_data._Mylast[-1];
}
_NODISCARD allocator_type get_allocator() const noexcept {
return static_cast<allocator_type>(_Getal());
}
private:
pointer _Ufill(pointer _Dest, const size_type _Count, const _Ty& _Val) {
// fill raw _Dest with _Count copies of _Val, using allocator
return _Uninitialized_fill_n(_Dest, _Count, _Val, _Getal());
}
pointer _Ufill(pointer _Dest, const size_type _Count, _Value_init_tag) {
// fill raw _Dest with _Count value-initialized objects, using allocator
return _Uninitialized_value_construct_n(_Dest, _Count, _Getal());
}
template <class _Iter>
pointer _Ucopy(_Iter _First, _Iter _Last, pointer _Dest) { // copy [_First, _Last) to raw _Dest, using allocator
return _Uninitialized_copy(_First, _Last, _Dest, _Getal());
}
pointer _Umove(pointer _First, pointer _Last, pointer _Dest) { // move [_First, _Last) to raw _Dest, using allocator
return _Uninitialized_move(_First, _Last, _Dest, _Getal());
}
void _Umove_if_noexcept1(pointer _First, pointer _Last, pointer _Dest, true_type) {
// move [_First, _Last) to raw _Dest, using allocator
_Uninitialized_move(_First, _Last, _Dest, _Getal());
}
void _Umove_if_noexcept1(pointer _First, pointer _Last, pointer _Dest, false_type) {
// copy [_First, _Last) to raw _Dest, using allocator
_Uninitialized_copy(_First, _Last, _Dest, _Getal());
}
void _Umove_if_noexcept(pointer _First, pointer _Last, pointer _Dest) {
// move_if_noexcept [_First, _Last) to raw _Dest, using allocator
_Umove_if_noexcept1(_First, _Last, _Dest,
bool_constant<disjunction_v<is_nothrow_move_constructible<_Ty>, negation<is_copy_constructible<_Ty>>>>{});
}
void _Destroy(pointer _First, pointer _Last) { // destroy [_First, _Last) using allocator
_Destroy_range(_First, _Last, _Getal());
}
size_type _Calculate_growth(const size_type _Newsize) const {
// given _Oldcapacity and _Newsize, calculate geometric growth
const size_type _Oldcapacity = capacity();
if (_Oldcapacity > max_size() - _Oldcapacity / 2) {
return _Newsize; // geometric growth would overflow
}
const size_type _Geometric = _Oldcapacity + _Oldcapacity / 2;
if (_Geometric < _Newsize) {
return _Newsize; // geometric growth would be insufficient
}
return _Geometric; // geometric growth is sufficient
}
void _Buy_raw(const size_type _Newcapacity) {
// allocate array with _Newcapacity elements
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
pointer& _Myend = _My_data._Myend;
_STL_INTERNAL_CHECK(!_Myfirst && !_Mylast && !_Myend); // check that *this is tidy
_STL_INTERNAL_CHECK(0 < _Newcapacity && _Newcapacity <= max_size());
const auto _Newvec = _Getal().allocate(_Newcapacity);
_Myfirst = _Newvec;
_Mylast = _Newvec;
_Myend = _Newvec + _Newcapacity;
}
void _Buy_nonzero(const size_type _Newcapacity) {
// allocate array with _Newcapacity elements
#ifdef _ENABLE_STL_INTERNAL_CHECK
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
pointer& _Myend = _My_data._Myend;
_STL_INTERNAL_CHECK(!_Myfirst && !_Mylast && !_Myend); // check that *this is tidy
_STL_INTERNAL_CHECK(0 < _Newcapacity);
#endif // _ENABLE_STL_INTERNAL_CHECK
if (_Newcapacity > max_size()) {
_Xlength();
}
_Buy_raw(_Newcapacity);
}
void _Change_array(const pointer _Newvec, const size_type _Newsize, const size_type _Newcapacity) {
// orphan all iterators, discard old array, acquire new array
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
pointer& _Myend = _My_data._Myend;
_My_data._Orphan_all();
if (_Myfirst) { // destroy and deallocate old array
_Destroy(_Myfirst, _Mylast);
_Getal().deallocate(_Myfirst, static_cast<size_type>(_Myend - _Myfirst));
}
_Myfirst = _Newvec;
_Mylast = _Newvec + _Newsize;
_Myend = _Newvec + _Newcapacity;
}
void _Tidy() noexcept { // free all storage
auto& _My_data = _Mypair._Myval2;
pointer& _Myfirst = _My_data._Myfirst;
pointer& _Mylast = _My_data._Mylast;
pointer& _Myend = _My_data._Myend;
_My_data._Orphan_all();
if (_Myfirst) { // destroy and deallocate old array
_Destroy(_Myfirst, _Mylast);
_Getal().deallocate(_Myfirst, static_cast<size_type>(_Myend - _Myfirst));
_Myfirst = pointer();
_Mylast = pointer();
_Myend = pointer();
}
}
[[noreturn]] static void _Xlength() {
_Xlength_error("vector too long");
}
[[noreturn]] static void _Xrange() {
_Xout_of_range("invalid vector subscript");
}
void _Orphan_range(pointer _First, pointer _Last) const { // orphan iterators within specified (inclusive) range
#if _ITERATOR_DEBUG_LEVEL == 2
_Lockit _Lock(_LOCK_DEBUG);
_Iterator_base12** _Pnext = &_Mypair._Myval2._Myproxy->_Myfirstiter;
while (*_Pnext) {
const auto _Pnextptr = static_cast<const_iterator&>(**_Pnext)._Ptr;
if (_Pnextptr < _First || _Last < _Pnextptr) { // skip the iterator
_Pnext = &(*_Pnext)->_Mynextiter;
} else { // orphan the iterator
(*_Pnext)->_Myproxy = nullptr;
*_Pnext = (*_Pnext)->_Mynextiter;
}
}
#else // ^^^ _ITERATOR_DEBUG_LEVEL == 2 ^^^ // vvv _ITERATOR_DEBUG_LEVEL != 2 vvv
(void) _First;
(void) _Last;
#endif // _ITERATOR_DEBUG_LEVEL == 2
}
_Alty& _Getal() noexcept {
return _Mypair._Get_first();
}
const _Alty& _Getal() const noexcept {
return _Mypair._Get_first();
}
iterator _Make_iterator(const pointer _Ptr) noexcept {
return iterator(_Ptr, _STD addressof(_Mypair._Myval2));
}
iterator _Make_iterator_offset(const size_type _Offset) noexcept {
// return the iterator begin() + _Offset without a debugging check
auto& _My_data = _Mypair._Myval2;
return iterator(_My_data._Myfirst + _Offset, _STD addressof(_My_data));
}
_Compressed_pair<_Alty, _Scary_val> _Mypair;
};
#if _HAS_CXX17
template <class _Iter, class _Alloc = allocator<_Iter_value_t<_Iter>>,
enable_if_t<conjunction_v<_Is_iterator<_Iter>, _Is_allocator<_Alloc>>, int> = 0>
vector(_Iter, _Iter, _Alloc = _Alloc())->vector<_Iter_value_t<_Iter>, _Alloc>;
#endif // _HAS_CXX17
template <class _Ty, class _Alloc>
void swap(vector<_Ty, _Alloc>& _Left, vector<_Ty, _Alloc>& _Right) noexcept /* strengthened */ {
_Left.swap(_Right);
}
template <class _Ty, class _Alloc>
_NODISCARD bool operator==(const vector<_Ty, _Alloc>& _Left, const vector<_Ty, _Alloc>& _Right) {
return _Left.size() == _Right.size()
&& _STD equal(_Left._Unchecked_begin(), _Left._Unchecked_end(), _Right._Unchecked_begin());
}
template <class _Ty, class _Alloc>
_NODISCARD bool operator!=(const vector<_Ty, _Alloc>& _Left, const vector<_Ty, _Alloc>& _Right) {
return !(_Left == _Right);
}
template <class _Ty, class _Alloc>
_NODISCARD bool operator<(const vector<_Ty, _Alloc>& _Left, const vector<_Ty, _Alloc>& _Right) {
return _STD lexicographical_compare(
_Left._Unchecked_begin(), _Left._Unchecked_end(), _Right._Unchecked_begin(), _Right._Unchecked_end());
}
template <class _Ty, class _Alloc>
_NODISCARD bool operator>(const vector<_Ty, _Alloc>& _Left, const vector<_Ty, _Alloc>& _Right) {
return _Right < _Left;
}
template <class _Ty, class _Alloc>
_NODISCARD bool operator<=(const vector<_Ty, _Alloc>& _Left, const vector<_Ty, _Alloc>& _Right) {
return !(_Right < _Left);
}
template <class _Ty, class _Alloc>
_NODISCARD bool operator>=(const vector<_Ty, _Alloc>& _Left, const vector<_Ty, _Alloc>& _Right) {
return !(_Left < _Right);
}
// CLASS TEMPLATE vector<bool, Alloc> AND FRIENDS
using _Vbase = unsigned int; // word type for vector<bool> representation
constexpr int _VBITS = 8 * sizeof(_Vbase); // at least CHAR_BITS bits per word
template <class _Alloc0>
struct _Wrap_alloc { // TRANSITION, ABI compat, preserves symbol names of vector<bool>::iterator
using _Alloc = _Alloc0;
};
// CLASS _Vb_iter_base
template <class _Alvbase_wrapped>
class _Vb_iter_base : public _Iterator_base {
// store information common to reference and iterators
public:
using _Alvbase = typename _Alvbase_wrapped::_Alloc;
using _Size_type = typename allocator_traits<_Alvbase>::size_type;
using _Difference_type = typename allocator_traits<_Alvbase>::difference_type;
using _Mycont = vector<bool, _Rebind_alloc_t<_Alvbase, bool>>;
_Vb_iter_base() = default;
_Vb_iter_base(const _Vbase* _Ptr, _Size_type _Off, const _Container_base* _Mypvbool) noexcept
: _Myptr(_Ptr), _Myoff(_Off) {
this->_Adopt(_Mypvbool);
}
void _Advance(_Size_type _Off) {
_Myoff += _Off;
_Myptr += _Myoff / _VBITS;
_Myoff %= _VBITS;
}
#if _ITERATOR_DEBUG_LEVEL != 0
_Difference_type _Total_off(const _Mycont* _Cont) const {
return static_cast<_Difference_type>(_VBITS * (_Myptr - _Cont->_Myvec.data()) + _Myoff);
}
#endif // _ITERATOR_DEBUG_LEVEL != 0
const _Vbase* _Myptr = nullptr;
_Size_type _Myoff = 0;
};
// CLASS _Vb_reference
template <class _Alvbase_wrapped>
class _Vb_reference : public _Vb_iter_base<_Alvbase_wrapped> {
// reference to a bit within a base word
using _Mybase = _Vb_iter_base<_Alvbase_wrapped>;
using _Mycont = typename _Mybase::_Mycont;
using _Difference_type = typename _Mybase::_Difference_type;
// TRANSITION, ABI: non-trivial constructor
_Vb_reference() = default;
public:
_Vb_reference(const _Mybase& _Right) noexcept : _Mybase(_Right._Myptr, _Right._Myoff, _Right._Getcont()) {}
_Vb_reference& operator=(const _Vb_reference& _Right) noexcept {
return *this = static_cast<bool>(_Right);
}
_Vb_reference& operator=(bool _Val) noexcept {
if (_Val) {
*const_cast<_Vbase*>(_Getptr()) |= _Mask();
} else {
*const_cast<_Vbase*>(_Getptr()) &= ~_Mask();
}
return *this;
}
void flip() noexcept {
*const_cast<_Vbase*>(_Getptr()) ^= _Mask();
}
operator bool() const noexcept {
return (*_Getptr() & _Mask()) != 0;
}
const _Vbase* _Getptr() const {
#if _ITERATOR_DEBUG_LEVEL != 0
const auto _Cont = static_cast<const _Mycont*>(this->_Getcont());
_STL_VERIFY(_Cont, "cannot dereference value-initialized vector<bool> iterator");
_STL_VERIFY(this->_Total_off(_Cont) <= static_cast<_Difference_type>(_Cont->_Mysize),
"vector<bool> iterator not dereferenceable");
#endif // _ITERATOR_DEBUG_LEVEL != 0
return this->_Myptr;
}
friend void swap(_Vb_reference _Left, _Vb_reference _Right) noexcept {
bool _Val = _Left; // NOT _STD swap
_Left = _Right;
_Right = _Val;
}
protected:
_Vbase _Mask() const {
return static_cast<_Vbase>(1) << this->_Myoff;
}
};
// CLASS _Vb_const_iterator
template <class _Alvbase_wrapped>
class _Vb_const_iterator : public _Vb_iter_base<_Alvbase_wrapped> {
private:
using _Mybase = _Vb_iter_base<_Alvbase_wrapped>;
public:
using _Mycont = typename _Mybase::_Mycont;
using _Difference_type = typename _Mybase::_Difference_type;
using _Size_type = typename _Mybase::_Size_type;
using _Reft = _Vb_reference<_Alvbase_wrapped>;
using const_reference = bool;
using iterator_category = random_access_iterator_tag;
using value_type = bool;
using difference_type = typename _Mybase::_Difference_type;
using pointer = const_reference*;
using reference = const_reference;
_Vb_const_iterator() = default;
_Vb_const_iterator(const _Vbase* _Ptr, const _Container_base* _Mypvbool) noexcept : _Mybase(_Ptr, 0, _Mypvbool) {}
_NODISCARD const_reference operator*() const {
#if _ITERATOR_DEBUG_LEVEL != 0
const auto _Cont = static_cast<const _Mycont*>(this->_Getcont());
_STL_VERIFY(_Cont, "cannot dereference value-initialized vector<bool> iterator");
_STL_VERIFY(this->_Total_off(_Cont) < static_cast<_Difference_type>(_Cont->_Mysize),
"vector<bool> iterator not dereferenceable");
#endif // _ITERATOR_DEBUG_LEVEL != 0
return _Reft(*this);
}
_Vb_const_iterator& operator++() {
_Inc();
return *this;
}
_Vb_const_iterator operator++(int) {
_Vb_const_iterator _Tmp = *this;
_Inc();
return _Tmp;
}
_Vb_const_iterator& operator--() {
_Dec();
return *this;
}
_Vb_const_iterator operator--(int) {
_Vb_const_iterator _Tmp = *this;
_Dec();
return _Tmp;
}
_Vb_const_iterator& operator+=(const difference_type _Off) {
#if _ITERATOR_DEBUG_LEVEL != 0
if (_Off != 0) {
const auto _Cont = static_cast<const _Mycont*>(this->_Getcont());
_STL_VERIFY(_Cont, "cannot seek value-initialized vector<bool> iterator");
const auto _Start_offset = this->_Total_off(_Cont);
if (_Off < 0) {
_STL_VERIFY(-_Start_offset <= _Off, "cannot seek vector<bool> iterator before begin");
} else if (0 < _Off) {
_STL_VERIFY(_Off <= static_cast<_Difference_type>(_Cont->_Mysize - _Start_offset),
"cannot seek vector<bool> iterator after end");
}
}
#endif // _ITERATOR_DEBUG_LEVEL != 0
if (_Off < 0 && this->_Myoff < 0 - static_cast<_Size_type>(_Off)) { // add negative increment
this->_Myoff += _Off;
this->_Myptr -= 1 + (static_cast<_Size_type>(-1) - this->_Myoff) / _VBITS;
this->_Myoff %= _VBITS;
} else { // add non-negative increment
this->_Myoff += _Off;
this->_Myptr += this->_Myoff / _VBITS;
this->_Myoff %= _VBITS;
}
return *this;
}
_NODISCARD _Vb_const_iterator operator+(const difference_type _Off) const {
_Vb_const_iterator _Tmp = *this;
return _Tmp += _Off;
}
_Vb_const_iterator& operator-=(const difference_type _Off) {
return *this += -_Off;
}
_NODISCARD _Vb_const_iterator operator-(const difference_type _Off) const {
_Vb_const_iterator _Tmp = *this;
return _Tmp -= _Off;
}
_NODISCARD difference_type operator-(const _Vb_const_iterator& _Right) const {
_Compat(_Right);
return static_cast<difference_type>(_VBITS * (this->_Myptr - _Right._Myptr))
+ static_cast<difference_type>(this->_Myoff) - static_cast<difference_type>(_Right._Myoff);
}
_NODISCARD const_reference operator[](const difference_type _Off) const {
return *(*this + _Off);
}
_NODISCARD bool operator==(const _Vb_const_iterator& _Right) const {
_Compat(_Right);
return this->_Myptr == _Right._Myptr && this->_Myoff == _Right._Myoff;
}
_NODISCARD bool operator!=(const _Vb_const_iterator& _Right) const {
return !(*this == _Right);
}
_NODISCARD bool operator<(const _Vb_const_iterator& _Right) const {
_Compat(_Right);
return this->_Myptr < _Right._Myptr || (this->_Myptr == _Right._Myptr && this->_Myoff < _Right._Myoff);
}
_NODISCARD bool operator>(const _Vb_const_iterator& _Right) const {
return _Right < *this;
}
_NODISCARD bool operator<=(const _Vb_const_iterator& _Right) const {
return !(_Right < *this);
}
_NODISCARD bool operator>=(const _Vb_const_iterator& _Right) const {
return !(*this < _Right);
}
void _Compat(const _Vb_const_iterator& _Right) const { // test for compatible iterator pair
#if _ITERATOR_DEBUG_LEVEL == 0
(void) _Right;
#else // _ITERATOR_DEBUG_LEVEL == 0
_STL_VERIFY(this->_Getcont() == _Right._Getcont(), "vector<bool> iterators incompatible");
#endif // _ITERATOR_DEBUG_LEVEL
}
#if _ITERATOR_DEBUG_LEVEL != 0
using _Prevent_inheriting_unwrap = _Vb_const_iterator;
friend void _Verify_range(const _Vb_const_iterator& _First, const _Vb_const_iterator& _Last) {
// note _Compat check inside <=
_STL_VERIFY(_First <= _Last, "vector<bool> iterator range transposed");
}
#endif // _ITERATOR_DEBUG_LEVEL != 0
void _Dec() { // decrement bit position
#if _ITERATOR_DEBUG_LEVEL != 0
const auto _Cont = static_cast<const _Mycont*>(this->_Getcont());
_STL_VERIFY(_Cont, "cannot decrement value-initialized vector<bool> iterator");
_STL_VERIFY(this->_Total_off(_Cont) > 0, "cannot decrement vector<bool> begin iterator");
#endif // _ITERATOR_DEBUG_LEVEL != 0
if (this->_Myoff != 0) {
--this->_Myoff;
} else { // move to previous word
this->_Myoff = _VBITS - 1;
--this->_Myptr;
}
}
void _Inc() { // increment bit position
#if _ITERATOR_DEBUG_LEVEL != 0
const auto _Cont = static_cast<const _Mycont*>(this->_Getcont());
_STL_VERIFY(_Cont, "cannot increment value-initialized vector<bool> iterator");
_STL_VERIFY(this->_Total_off(_Cont) < static_cast<_Difference_type>(_Cont->_Mysize),
"cannot increment vector<bool> end iterator");
#endif // _ITERATOR_DEBUG_LEVEL != 0
if (this->_Myoff < _VBITS - 1) {
++this->_Myoff;
} else { // move to next word
this->_Myoff = 0;
++this->_Myptr;
}
}
};
template <class _Alvbase_wrapped>
_NODISCARD _Vb_const_iterator<_Alvbase_wrapped> operator+(
typename _Vb_const_iterator<_Alvbase_wrapped>::difference_type _Off, _Vb_const_iterator<_Alvbase_wrapped> _Right) {
return _Right += _Off;
}
// CLASS _Vb_iterator
template <class _Alvbase_wrapped>
class _Vb_iterator : public _Vb_const_iterator<_Alvbase_wrapped> {
public:
using _Mybase = _Vb_const_iterator<_Alvbase_wrapped>;
using _Mycont = typename _Mybase::_Mycont;
using _Difference_type = typename _Mybase::_Difference_type;
using _Reft = _Vb_reference<_Alvbase_wrapped>;
using const_reference = bool;
using iterator_category = random_access_iterator_tag;
using value_type = bool;
using difference_type = typename _Mybase::difference_type;
using pointer = _Reft*;
using reference = _Reft;
using _Mybase::_Mybase;
_NODISCARD reference operator*() const {
#if _ITERATOR_DEBUG_LEVEL != 0
const auto _Cont = static_cast<const _Mycont*>(this->_Getcont());
_STL_VERIFY(_Cont, "cannot dereference value-initialized vector<bool> iterator");
_STL_VERIFY(this->_Total_off(_Cont) < static_cast<_Difference_type>(_Cont->_Mysize),
"vector<bool> iterator not dereferenceable");
#endif // _ITERATOR_DEBUG_LEVEL != 0
return _Reft(*this);
}
_Vb_iterator& operator++() {
_Mybase::operator++();
return *this;
}
_Vb_iterator operator++(int) {
_Vb_iterator _Tmp = *this;
_Mybase::operator++();
return _Tmp;
}
_Vb_iterator& operator--() {
_Mybase::operator--();
return *this;
}
_Vb_iterator operator--(int) {
_Vb_iterator _Tmp = *this;
_Mybase::operator--();
return _Tmp;
}
_Vb_iterator& operator+=(const difference_type _Off) {
_Mybase::operator+=(_Off);
return *this;
}
_NODISCARD _Vb_iterator operator+(const difference_type _Off) const {
_Vb_iterator _Tmp = *this;
return _Tmp += _Off;
}
_Vb_iterator& operator-=(const difference_type _Off) {
_Mybase::operator-=(_Off);
return *this;
}
using _Mybase::operator-;
_NODISCARD _Vb_iterator operator-(const difference_type _Off) const {
_Vb_iterator _Tmp = *this;
return _Tmp -= _Off;
}
_NODISCARD reference operator[](const difference_type _Off) const {
return *(*this + _Off);
}
using _Prevent_inheriting_unwrap = _Vb_iterator;
};
template <class _Alvbase_wrapped>
_NODISCARD _Vb_iterator<_Alvbase_wrapped> operator+(
typename _Vb_iterator<_Alvbase_wrapped>::difference_type _Off, _Vb_iterator<_Alvbase_wrapped> _Right) {
return _Right += _Off;
}
// CLASS TEMPLATE _Vb_val
template <class _Alloc>
class _Vb_val : public _Container_base {
public:
using _Alvbase = _Rebind_alloc_t<_Alloc, _Vbase>;
using _Alvbase_traits = allocator_traits<_Alvbase>;
using _Vectype = vector<_Vbase, _Alvbase>;
using _Alvbase_wrapped = _Wrap_alloc<_Alvbase>;
using size_type = typename _Alvbase_traits::size_type;
_Vb_val() noexcept(is_nothrow_default_constructible_v<_Vectype>) : _Myvec(), _Mysize(0) {
this->_Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alvbase, _Getal()));
}
_Vb_val(const _Alloc& _Al) noexcept(is_nothrow_constructible_v<_Vectype, _Alvbase>)
: _Myvec(static_cast<_Alvbase>(_Al)), _Mysize(0) {
this->_Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alvbase, _Getal()));
}
_Vb_val(size_type _Count, const bool& _Val) : _Myvec(_Nw(_Count), static_cast<_Vbase>(_Val ? -1 : 0)), _Mysize(0) {
this->_Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alvbase, _Getal()));
}
_Vb_val(size_type _Count, const bool& _Val, const _Alloc& _Al)
: _Myvec(_Nw(_Count), static_cast<_Vbase>(_Val ? -1 : 0), static_cast<_Alvbase>(_Al)), _Mysize(0) {
this->_Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alvbase, _Getal()));
}
_Vb_val(const _Vb_val& _Right) : _Myvec(_Right._Myvec), _Mysize(_Right._Mysize) {
this->_Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alvbase, _Getal()));
}
_Vb_val(const _Vb_val& _Right, const _Alloc& _Al)
: _Myvec(_Right._Myvec, static_cast<_Alvbase>(_Al)), _Mysize(_Right._Mysize) {
this->_Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alvbase, _Getal()));
}
_Vb_val(_Vb_val&& _Right) noexcept(is_nothrow_move_constructible_v<_Vectype>)
: _Myvec(_STD move(_Right._Myvec)), _Mysize(_STD exchange(_Right._Mysize, size_type{0})) {
this->_Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alvbase, _Getal()));
}
_Vb_val(_Vb_val&& _Right, const _Alloc& _Al) noexcept(is_nothrow_constructible_v<_Vectype, _Vectype, _Alvbase>)
: _Myvec(_STD move(_Right._Myvec), static_cast<_Alvbase>(_Al)), _Mysize(_Right._Mysize) {
if (_Right._Myvec.empty()) {
// we took _Right's buffer, so zero out size
_Right._Mysize = 0;
}
this->_Alloc_proxy(_GET_PROXY_ALLOCATOR(_Alvbase, _Getal()));
}
~_Vb_val() noexcept {
#if _ITERATOR_DEBUG_LEVEL != 0
this->_Orphan_all();
auto&& _Alproxy = _GET_PROXY_ALLOCATOR(_Alvbase, this->_Getal());
_Delete_plain_internal(_Alproxy, _STD exchange(this->_Myproxy, nullptr));
#endif // _ITERATOR_DEBUG_LEVEL != 0
}
_Alvbase& _Getal() noexcept {
return _Myvec._Getal();
}
const _Alvbase& _Getal() const noexcept {
return _Myvec._Getal();
}
static size_type _Nw(size_type _Count) {
return (_Count + _VBITS - 1) / _VBITS;
}
_Vectype _Myvec; // base vector of words
size_type _Mysize; // current length of sequence
};
// CLASS vector<bool>
template <class _Alloc>
class vector<bool, _Alloc> : public _Vb_val<_Alloc> {
public:
static_assert(!_ENFORCE_MATCHING_ALLOCATORS || is_same_v<bool, typename _Alloc::value_type>,
_MISMATCHED_ALLOCATOR_MESSAGE("vector<bool, Allocator>", "bool"));
using _Mybase = _Vb_val<_Alloc>;
using _Alvbase_wrapped = typename _Mybase::_Alvbase_wrapped;
using _Alvbase = typename _Mybase::_Alvbase;
using _Alvbase_traits = typename _Mybase::_Alvbase_traits;
using size_type = typename _Alvbase_traits::size_type;
using difference_type = typename _Alvbase_traits::difference_type;
using allocator_type = _Alloc;
using reference = _Vb_reference<_Alvbase_wrapped>;
using const_reference = bool;
using value_type = bool;
using _Reft = reference;
using iterator = _Vb_iterator<_Alvbase_wrapped>;
using const_iterator = _Vb_const_iterator<_Alvbase_wrapped>;
using pointer = iterator;
using const_pointer = const_iterator;
using reverse_iterator = _STD reverse_iterator<iterator>;
using const_reverse_iterator = _STD reverse_iterator<const_iterator>;
static const int _VBITS = _STD _VBITS;
enum { _EEN_VBITS = _VBITS }; // helper for expression evaluator
vector() noexcept(is_nothrow_default_constructible_v<_Mybase>) // strengthened
: _Mybase() {}
explicit vector(const _Alloc& _Al) noexcept(is_nothrow_constructible_v<_Mybase, const _Alloc&>) // strengthened
: _Mybase(_Al) {}
explicit vector(_CRT_GUARDOVERFLOW size_type _Count, const _Alloc& _Al = _Alloc()) : _Mybase(_Count, false, _Al) {
_Trim(_Count);
}
vector(_CRT_GUARDOVERFLOW size_type _Count, const bool& _Val, const _Alloc& _Al = _Alloc())
: _Mybase(_Count, _Val, _Al) {
_Trim(_Count);
}
vector(const vector& _Right) : _Mybase(_Right) {}
vector(const vector& _Right, const _Alloc& _Al) : _Mybase(_Right, _Al) {}
template <class _Iter, enable_if_t<_Is_iterator_v<_Iter>, int> = 0>
vector(_Iter _First, _Iter _Last, const _Alloc& _Al = _Alloc()) : _Mybase(_Al) {
_BConstruct(_First, _Last);
}
template <class _Iter>
void _BConstruct(_Iter _First, _Iter _Last) {
insert(begin(), _First, _Last);
}
vector(vector&& _Right) noexcept(is_nothrow_move_constructible_v<_Mybase>) // strengthened
: _Mybase(_STD move(_Right)) {
this->_Swap_proxy_and_iterators(_Right);
}
vector(vector&& _Right, const _Alloc& _Al) noexcept(is_nothrow_constructible_v<_Mybase, _Mybase, const _Alloc&>)
: _Mybase(_STD move(_Right), _Al) {
if
_CONSTEXPR_IF(!_Alvbase_traits::is_always_equal::value) {
if (this->_Getal() != _Right._Getal()) {
return;
}
}
this->_Swap_proxy_and_iterators(_Right);
}
private:
#if _ITERATOR_DEBUG_LEVEL != 0
void _Move_assign(vector& _Right, _Equal_allocators) noexcept {
this->_Myvec = _STD move(_Right._Myvec);
this->_Mysize = _STD exchange(_Right._Mysize, size_type{0});
this->_Swap_proxy_and_iterators(_Right);
}
void _Move_assign(vector& _Right, _Propagate_allocators) noexcept {
using _Alproxy_type = _Rebind_alloc_t<_Alvbase, _Container_proxy>;
if (this->_Getal() != _Right._Getal()) { // reload proxy
// intentionally slams into noexcept on OOM, TRANSITION, VSO-466800
_Alproxy_type _Oldal(this->_Getal());
_Alproxy_type _Right_proxy_al(_Right._Getal());
_Container_proxy_ptr<_Alvbase> _Proxy(_Right_proxy_al, _Leave_proxy_unbound{});
this->_Myvec = _STD move(_Right._Myvec);
this->_Mysize = _STD exchange(_Right._Mysize, size_type{0});
_Proxy._Bind(_Oldal, this);
this->_Swap_proxy_and_iterators(_Right);
return;
}
this->_Myvec = _STD move(_Right._Myvec);
this->_Mysize = _STD exchange(_Right._Mysize, size_type{0});
this->_Swap_proxy_and_iterators(_Right);
}
void _Move_assign(vector& _Right, _No_propagate_allocators) {
this->_Myvec = _STD move(_Right._Myvec);
this->_Mysize = _Right._Mysize;
if (_Right._Myvec.empty()) {
// we took _Right's buffer, so zero out size
_Right._Mysize = 0;
}
if (this->_Getal() == _Right._Getal()) {
this->_Swap_proxy_and_iterators(_Right);
}
}
#endif // _ITERATOR_DEBUG_LEVEL != 0
public:
vector& operator=(vector&& _Right) noexcept(is_nothrow_move_assignable_v<_Mybase>) {
if (this != _STD addressof(_Right)) {
#if _ITERATOR_DEBUG_LEVEL == 0
this->_Myvec = _STD move(_Right._Myvec);
this->_Mysize = _STD exchange(_Right._Mysize, size_type{0});
#else // ^^^ _ITERATOR_DEBUG_LEVEL == 0 ^^^ // vvv _ITERATOR_DEBUG_LEVEL != 0 vvv
this->_Orphan_all();
_Move_assign(_Right, _Choose_pocma<_Alvbase>{});
#endif // _ITERATOR_DEBUG_LEVEL == 0
}
return *this;
}
template <class... _Valty>
decltype(auto) emplace_back(_Valty&&... _Val) {
bool _Tmp(_STD forward<_Valty>(_Val)...);
push_back(_Tmp);
#if _HAS_CXX17
return back();
#endif // _HAS_CXX17
}
template <class... _Valty>
iterator emplace(const_iterator _Where, _Valty&&... _Val) {
bool _Tmp(_STD forward<_Valty>(_Val)...);
return insert(_Where, _Tmp);
}
vector(initializer_list<bool> _Ilist, const _Alloc& _Al = allocator_type()) : _Mybase(0, false, _Al) {
insert(begin(), _Ilist.begin(), _Ilist.end());
}
vector& operator=(initializer_list<bool> _Ilist) {
assign(_Ilist.begin(), _Ilist.end());
return *this;
}
void assign(initializer_list<bool> _Ilist) {
assign(_Ilist.begin(), _Ilist.end());
}
iterator insert(const_iterator _Where, initializer_list<bool> _Ilist) {
return insert(_Where, _Ilist.begin(), _Ilist.end());
}
~vector() noexcept {}
private:
#if _ITERATOR_DEBUG_LEVEL != 0
void _Copy_assign(const vector& _Right, false_type) {
this->_Myvec = _Right._Myvec;
this->_Mysize = _Right._Mysize;
}
void _Copy_assign(const vector& _Right, true_type) {
if (this->_Getal() == _Right._Getal()) {
_Copy_assign(_Right, false_type{});
} else {
// reload proxy
using _Alproxy_type = _Rebind_alloc_t<_Alvbase, _Container_proxy>;
_Alproxy_type _Oldal(this->_Getal());
_Alproxy_type _Right_proxy_al(_Right._Getal());
_Container_proxy_ptr<_Alvbase> _Proxy(_Right_proxy_al, _Leave_proxy_unbound{});
this->_Myvec = _Right._Myvec;
this->_Mysize = _Right._Mysize;
_Proxy._Bind(_Oldal, this);
}
}
#endif // _ITERATOR_DEBUG_LEVEL != 0
public:
vector& operator=(const vector& _Right) {
if (this != _STD addressof(_Right)) {
#if _ITERATOR_DEBUG_LEVEL == 0
this->_Myvec = _Right._Myvec;
this->_Mysize = _Right._Mysize;
#else // ^^^ _ITERATOR_DEBUG_LEVEL == 0 ^^^ // vvv _ITERATOR_DEBUG_LEVEL != 0 vvv
this->_Orphan_all();
_Copy_assign(_Right, _Choose_pocca<_Alvbase>{});
#endif // _ITERATOR_DEBUG_LEVEL == 0
}
return *this;
}
void reserve(_CRT_GUARDOVERFLOW size_type _Count) {
this->_Myvec.reserve(this->_Nw(_Count));
}
_NODISCARD size_type capacity() const noexcept {
return this->_Myvec.capacity() * _VBITS;
}
_NODISCARD iterator begin() noexcept {
return iterator(this->_Myvec.data(), this);
}
_NODISCARD const_iterator begin() const noexcept {
return const_iterator(this->_Myvec.data(), this);
}
_NODISCARD iterator end() noexcept {
return begin() + static_cast<difference_type>(this->_Mysize);
}
_NODISCARD const_iterator end() const noexcept {
return begin() + static_cast<difference_type>(this->_Mysize);
}
_NODISCARD const_iterator cbegin() const noexcept {
return begin();
}
_NODISCARD const_iterator cend() const noexcept {
return end();
}
_NODISCARD const_reverse_iterator crbegin() const noexcept {
return rbegin();
}
_NODISCARD const_reverse_iterator crend() const noexcept {
return rend();
}
_NODISCARD iterator _Unchecked_begin() noexcept {
return iterator(this->_Myvec.data(), this);
}
_NODISCARD const_iterator _Unchecked_begin() const noexcept {
return const_iterator(this->_Myvec.data(), this);
}
_NODISCARD iterator _Unchecked_end() noexcept {
return _Unchecked_begin() + static_cast<difference_type>(this->_Mysize);
}
_NODISCARD const_iterator _Unchecked_end() const noexcept {
return _Unchecked_begin() + static_cast<difference_type>(this->_Mysize);
}
void shrink_to_fit() {
if (this->_Myvec.capacity() != this->_Myvec.size()) {
this->_Orphan_all();
this->_Myvec.shrink_to_fit();
}
}
iterator _Make_iter(const_iterator _Where) noexcept {
iterator _Tmp = begin();
if (0 < this->_Mysize) {
_Tmp += _Where - begin();
}
return _Tmp;
}
_NODISCARD reverse_iterator rbegin() noexcept {
return reverse_iterator(end());
}
_NODISCARD const_reverse_iterator rbegin() const noexcept {
return const_reverse_iterator(end());
}
_NODISCARD reverse_iterator rend() noexcept {
return reverse_iterator(begin());
}
_NODISCARD const_reverse_iterator rend() const noexcept {
return const_reverse_iterator(begin());
}
void resize(_CRT_GUARDOVERFLOW size_type _Newsize, bool _Val = false) {
if (size() < _Newsize) {
_Insert_n(end(), _Newsize - size(), _Val);
} else if (_Newsize < size()) {
erase(begin() + static_cast<difference_type>(_Newsize), end());
}
}
_NODISCARD size_type size() const noexcept {
return this->_Mysize;
}
_NODISCARD size_type max_size() const noexcept {
constexpr auto _Diff_max = static_cast<size_type>((numeric_limits<difference_type>::max)());
const size_type _Ints_max = this->_Myvec.max_size();
if (_Ints_max > _Diff_max / _VBITS) { // max_size bound by difference_type limits
return _Diff_max;
}
// max_size bound by underlying storage limits
return _Ints_max * _VBITS;
}
_NODISCARD bool empty() const noexcept {
return size() == 0;
}
_NODISCARD allocator_type get_allocator() const noexcept {
return static_cast<allocator_type>(this->_Myvec.get_allocator());
}
_NODISCARD const_reference at(size_type _Off) const {
if (size() <= _Off) {
_Xran();
}
return (*this)[_Off];
}
_NODISCARD reference at(size_type _Off) {
if (size() <= _Off) {
_Xran();
}
return (*this)[_Off];
}
_NODISCARD const_reference operator[](size_type _Off) const noexcept /* strengthened */ {
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(_Off < this->_Mysize, "vector<bool> subscript out of range");
#endif // _CONTAINER_DEBUG_LEVEL > 0
const_iterator _It = begin();
_It._Advance(_Off);
return *_It;
}
_NODISCARD reference operator[](size_type _Off) noexcept /* strengthened */ {
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(_Off < this->_Mysize, "vector<bool> subscript out of range");
#endif // _CONTAINER_DEBUG_LEVEL > 0
iterator _It = begin();
_It._Advance(_Off);
return *_It;
}
_NODISCARD reference front() noexcept /* strengthened */ {
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(this->_Mysize != 0, "front() called on empty vector<bool>");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return *begin();
}
_NODISCARD const_reference front() const noexcept /* strengthened */ {
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(this->_Mysize != 0, "front() called on empty vector<bool>");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return *begin();
}
_NODISCARD reference back() noexcept /* strengthened */ {
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(this->_Mysize != 0, "back() called on empty vector<bool>");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return *(end() - 1);
}
_NODISCARD const_reference back() const noexcept /* strengthened */ {
#if _CONTAINER_DEBUG_LEVEL > 0
_STL_VERIFY(this->_Mysize != 0, "back() called on empty vector<bool>");
#endif // _CONTAINER_DEBUG_LEVEL > 0
return *(end() - 1);
}
void push_back(const bool& _Val) {
insert(end(), _Val);
}
void pop_back() noexcept /* strengthened */ {
erase(end() - 1);
}
template <class _Iter, enable_if_t<_Is_iterator_v<_Iter>, int> = 0>
void assign(_Iter _First, _Iter _Last) {
clear();
insert(begin(), _First, _Last);
}
void assign(_CRT_GUARDOVERFLOW size_type _Count, const bool& _Val) {
clear();
_Insert_n(begin(), _Count, _Val);
}
iterator insert(const_iterator _Where, const bool& _Val) {
return _Insert_n(_Where, static_cast<size_type>(1), _Val);
}
iterator insert(const_iterator _Where, _CRT_GUARDOVERFLOW size_type _Count, const bool& _Val) {
return _Insert_n(_Where, _Count, _Val);
}
template <class _Iter, enable_if_t<_Is_iterator_v<_Iter>, int> = 0>
iterator insert(const_iterator _Where, _Iter _First, _Iter _Last) {
difference_type _Off = _Where - begin();
_Insert(_Where, _First, _Last, _Iter_cat_t<_Iter>());
return begin() + _Off;
}
template <class _Iter>
void _Insert(const_iterator _Where, _Iter _First, _Iter _Last, input_iterator_tag) {
difference_type _Off = _Where - begin();
for (; _First != _Last; ++_First, (void) ++_Off) {
insert(begin() + _Off, *_First);
}
}
template <class _Iter>
void _Insert(const_iterator _Where, _Iter _First, _Iter _Last, forward_iterator_tag) {
_Adl_verify_range(_First, _Last);
auto _Count = _Convert_size<size_type>(static_cast<size_t>(_STD distance(_First, _Last)));
size_type _Off = _Insert_x(_Where, _Count);
_Copy_unchecked(_Get_unwrapped(_First), _Get_unwrapped(_Last), begin() + static_cast<difference_type>(_Off));
}
iterator erase(const_iterator _Where_arg) noexcept /* strengthened */ {
iterator _Where = _Make_iter(_Where_arg);
difference_type _Off = _Where - begin();
#if _ITERATOR_DEBUG_LEVEL == 2
_STL_VERIFY(end() > _Where, "vector<bool> erase iterator outside range");
_STD copy(_Where + 1, end(), _Where);
_Orphan_range(static_cast<size_type>(_Off), this->_Mysize);
#else // _ITERATOR_DEBUG_LEVEL == 2
_STD copy(_Where + 1, end(), _Where);
#endif // _ITERATOR_DEBUG_LEVEL == 2
_Trim(this->_Mysize - 1);
return begin() + _Off;
}
iterator erase(const_iterator _First_arg, const_iterator _Last_arg) noexcept /* strengthened */ {
iterator _First = _Make_iter(_First_arg);
iterator _Last = _Make_iter(_Last_arg);
difference_type _Off = _First - begin();
if (_First != _Last) { // worth doing, copy down over hole
#if _ITERATOR_DEBUG_LEVEL == 2
_STL_VERIFY(_Last >= _First && end() >= _Last, "vector<bool> erase iterator outside range");
iterator _Next = _STD copy(_Last, end(), _First);
const auto _Newsize = static_cast<size_type>(_Next - begin());
_Orphan_range(_Newsize, this->_Mysize);
_Trim(_Newsize);
#else // _ITERATOR_DEBUG_LEVEL == 2
iterator _Next = _STD copy(_Last, end(), _First);
_Trim(static_cast<size_type>(_Next - begin()));
#endif // _ITERATOR_DEBUG_LEVEL == 2
}
return begin() + _Off;
}
void clear() noexcept {
this->_Orphan_all();
this->_Myvec.clear();
this->_Mysize = 0;
}
void flip() noexcept { // toggle all elements
for (auto& _Elem : this->_Myvec) {
_Elem = ~_Elem;
}
_Trim(this->_Mysize);
}
void swap(vector& _Right) noexcept /* strengthened */ {
if (this != _STD addressof(_Right)) {
this->_Swap_proxy_and_iterators(_Right);
this->_Myvec.swap(_Right._Myvec);
_STD swap(this->_Mysize, _Right._Mysize);
}
}
static void swap(reference _Left, reference _Right) noexcept {
bool _Val = _Left; // NOT _STD swap
_Left = _Right;
_Right = _Val;
}
friend hash<vector<bool, _Alloc>>;
iterator _Insert_n(const_iterator _Where, size_type _Count, const bool& _Val) {
size_type _Off = _Insert_x(_Where, _Count);
const auto _Result = begin() + static_cast<difference_type>(_Off);
_STD fill(_Result, _Result + static_cast<difference_type>(_Count), _Val);
return _Result;
}
size_type _Insert_x(const_iterator _Where, size_type _Count) {
difference_type _Off = _Where - begin();
#if _ITERATOR_DEBUG_LEVEL == 2
_STL_VERIFY(end() >= _Where, "vector<bool> insert iterator outside range");
bool _Realloc = capacity() - size() < _Count;
#endif // _ITERATOR_DEBUG_LEVEL == 2
if (_Count != 0) {
if (max_size() - size() < _Count) {
_Xlen(); // result too long
}
// worth doing
this->_Myvec.resize(this->_Nw(size() + _Count), 0);
if (empty()) {
this->_Mysize += _Count;
} else { // make room and copy down suffix
iterator _Oldend = end();
this->_Mysize += _Count;
_STD copy_backward(begin() + _Off, _Oldend, end());
}
#if _ITERATOR_DEBUG_LEVEL == 2
_Orphan_range(static_cast<size_type>(_Realloc ? 0 : _Off), this->_Mysize);
#endif // _ITERATOR_DEBUG_LEVEL == 2
}
return static_cast<size_type>(_Off);
}
#if _ITERATOR_DEBUG_LEVEL == 2
void _Orphan_range(size_type _Offlo, size_type _Offhi) const {
_Lockit _Lock(_LOCK_DEBUG);
const auto _Base = this->_Myvec.data();
_Iterator_base12** _Pnext = &this->_Myproxy->_Myfirstiter;
while (*_Pnext) { // test offset from beginning of vector
const auto& _Pnextiter = static_cast<const_iterator&>(**_Pnext);
const auto _Off = static_cast<size_type>(_VBITS * (_Pnextiter._Myptr - _Base)) + _Pnextiter._Myoff;
if (_Off < _Offlo || _Offhi < _Off) {
_Pnext = &(*_Pnext)->_Mynextiter;
} else { // orphan the iterator
(*_Pnext)->_Myproxy = nullptr;
*_Pnext = (*_Pnext)->_Mynextiter;
}
}
}
#else // _ITERATOR_DEBUG_LEVEL == 2
void _Orphan_range(size_type, size_type) const {}
#endif // _ITERATOR_DEBUG_LEVEL == 2
void _Trim(size_type _Size) {
if (max_size() < _Size) {
_Xlen(); // result too long
}
const size_type _Words = this->_Nw(_Size);
if (_Words < this->_Myvec.size()) {
this->_Myvec.erase(this->_Myvec.begin() + static_cast<difference_type>(_Words), this->_Myvec.end());
}
this->_Mysize = _Size;
_Size %= _VBITS;
if (0 < _Size) {
this->_Myvec[_Words - 1] &= (static_cast<_Vbase>(1) << _Size) - 1;
}
}
[[noreturn]] void _Xlen() const {
_Xlength_error("vector<bool> too long");
}
[[noreturn]] void _Xran() const {
_Xout_of_range("invalid vector<bool> subscript");
}
};
template <class _Alloc>
_NODISCARD bool operator==(const vector<bool, _Alloc>& _Left, const vector<bool, _Alloc>& _Right) {
return _Left.size() == _Right.size() && _Left._Myvec == _Right._Myvec;
}
template <class _Alloc>
_NODISCARD bool operator!=(const vector<bool, _Alloc>& _Left, const vector<bool, _Alloc>& _Right) {
return !(_Left == _Right);
}
// STRUCT TEMPLATE SPECIALIZATION hash
template <class _Alloc>
struct hash<vector<bool, _Alloc>> {
_CXX17_DEPRECATE_ADAPTOR_TYPEDEFS typedef vector<bool, _Alloc> _ARGUMENT_TYPE_NAME;
_CXX17_DEPRECATE_ADAPTOR_TYPEDEFS typedef size_t _RESULT_TYPE_NAME;
_NODISCARD size_t operator()(const vector<bool, _Alloc>& _Keyval) const noexcept {
return _Hash_array_representation(_Keyval._Myvec.data(), _Keyval._Myvec.size());
}
};
#if _HAS_CXX20
template <class _Ty, class _Alloc, class _Uty>
void erase(vector<_Ty, _Alloc>& _Cont, const _Uty& _Val) {
_Erase_remove(_Cont, _Val);
}
template <class _Ty, class _Alloc, class _Pr>
void erase_if(vector<_Ty, _Alloc>& _Cont, _Pr _Pred) {
_Erase_remove_if(_Cont, _Pass_fn(_Pred));
}
#endif // _HAS_CXX20
#if _HAS_CXX17
namespace pmr {
template <class _Ty>
using vector = _STD vector<_Ty, polymorphic_allocator<_Ty>>;
} // namespace pmr
#endif // _HAS_CXX17
_STD_END
#pragma pop_macro("new")
_STL_RESTORE_CLANG_WARNINGS
#pragma warning(pop)
#pragma pack(pop)
#endif // _STL_COMPILER_PREPROCESSOR
#endif // _VECTOR_