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view libcxx/include/iterator @ 222:81f6424ef0e3 llvm-original
LLVM original branch
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Sun, 18 Jul 2021 22:10:01 +0900 |
| parents | 79ff65ed7e25 |
| children | 5f17cb93ff66 |
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// -*- C++ -*- //===-------------------------- iterator ----------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #ifndef _LIBCPP_ITERATOR #define _LIBCPP_ITERATOR /* iterator synopsis #include <concepts> namespace std { template<class> struct incrementable_traits; // since C++20 template<class T> using iter_difference_t = see below; // since C++20 template<class> struct indirectly_readable_traits; // since C++20 template<class T> using iter_value_t = see below; // since C++20 template<class Iterator> struct iterator_traits; template<class T> requires is_object_v<T> // since C++20 struct iterator_traits<T*>; template<dereferenceable T> using iter_reference_t = decltype(*declval<T&>()); namespace ranges::inline unspecified { inline constexpr unspecified iter_move = unspecified; // since C++20, nodiscard as an extension }} template<dereferenceable T> requires ... using iter_rvalue_reference_t = decltype(ranges::iter_move(declval<T&>())); // since C++20 // [iterator.concepts], iterator concepts // [iterator.concept.readable], concept indirectly_readable template<class In> concept indirectly_readable = see below; // since C++20 template<indirectly_readable T> using iter_common_reference_t = common_reference_t<iter_reference_t<T>, iter_value_t<T>&>; // since C++20 // [iterator.concept.writable], concept indirectly_writable template<class Out, class T> concept indirectly_writable = see below; // since C++20 // [iterator.concept.winc], concept weakly_incrementable template<class I> concept weakly_incrementable = see below; // since C++20 // [iterator.concept.inc], concept incrementable template<class I> concept incrementable = see below; // since C++20 // [iterator.concept.iterator], concept input_or_output_iterator template<class I> concept input_or_output_iterator = see below; // since C++20 // [iterator.concept.sentinel], concept sentinel_for template<class S, class I> concept sentinel_for = see below; // since C++20 // [iterator.concept.sizedsentinel], concept sized_sentinel_for template<class S, class I> inline constexpr bool disable_sized_sentinel_for = false; template<class S, class I> concept sized_sentinel_for = see below; // [iterator.concept.input], concept input_iterator template<class I> concept input_iterator = see below; // since C++20 // [iterator.concept.forward], concept forward_iterator template<class I> concept forward_iterator = see below; // since C++20 // [iterator.concept.bidir], concept bidirectional_iterator template<class I> concept bidirectional_iterator = see below; // since C++20 // [iterator.concept.random.access], concept random_access_iterator template<class I> concept random_access_iterator = see below; // since C++20 // [indirectcallable] // [indirectcallable.indirectinvocable] template<class F, class I> concept indirectly_unary_invocable = see below; // since C++20 template<class F, class I> concept indirectly_regular_unary_invocable = see below; // since C++20 template<class F, class I> concept indirect_unary_predicate = see below; // since C++20 template<class F, class I1, class I2> concept indirect_binary_predicate = see below; // since C++20 template<class F, class I1, class I2 = I1> concept indirect_equivalence_relation = see below; // since C++20 template<class F, class I1, class I2 = I1> concept indirect_strict_weak_order = see below; // since C++20 template<class F, class... Is> using indirect_result_t = see below; // since C++20 // [projected], projected template<indirectly_readable I, indirectly_regular_unary_invocable<I> Proj> struct projected; // since C++20 template<weakly_incrementable I, indirectly_regular_unary_invocable<I> Proj> struct incrementable_traits<projected<I, Proj>>; // since C++20 template<class Category, class T, class Distance = ptrdiff_t, class Pointer = T*, class Reference = T&> struct iterator // deprecated in C++17 { typedef T value_type; typedef Distance difference_type; typedef Pointer pointer; typedef Reference reference; typedef Category iterator_category; }; struct input_iterator_tag {}; struct output_iterator_tag {}; struct forward_iterator_tag : public input_iterator_tag {}; struct bidirectional_iterator_tag : public forward_iterator_tag {}; struct random_access_iterator_tag : public bidirectional_iterator_tag {}; // 27.4.3, iterator operations template <class InputIterator, class Distance> // constexpr in C++17 constexpr void advance(InputIterator& i, Distance n); template <class InputIterator> // constexpr in C++17 constexpr typename iterator_traits<InputIterator>::difference_type distance(InputIterator first, InputIterator last); template <class InputIterator> // constexpr in C++17 constexpr InputIterator next(InputIterator x, typename iterator_traits<InputIterator>::difference_type n = 1); template <class BidirectionalIterator> // constexpr in C++17 constexpr BidirectionalIterator prev(BidirectionalIterator x, typename iterator_traits<BidirectionalIterator>::difference_type n = 1); // [range.iter.ops], range iterator operations namespace ranges { // [range.iter.op.advance], ranges::advance template<input_or_output_iterator I> constexpr void advance(I& i, iter_difference_t<I> n); // since C++20 template<input_or_output_iterator I, sentinel_for<I> S> constexpr void advance(I& i, S bound); // since C++20 template<input_or_output_iterator I, sentinel_for<I> S> constexpr iter_difference_t<I> advance(I& i, iter_difference_t<I> n, S bound); // since C++20 } template <class Iterator> class reverse_iterator : public iterator<typename iterator_traits<Iterator>::iterator_category, // until C++17 typename iterator_traits<Iterator>::value_type, typename iterator_traits<Iterator>::difference_type, typename iterator_traits<Iterator>::pointer, typename iterator_traits<Iterator>::reference> { protected: Iterator current; public: typedef Iterator iterator_type; typedef typename iterator_traits<Iterator>::difference_type difference_type; typedef typename iterator_traits<Iterator>::reference reference; typedef typename iterator_traits<Iterator>::pointer pointer; constexpr reverse_iterator(); constexpr explicit reverse_iterator(Iterator x); template <class U> constexpr reverse_iterator(const reverse_iterator<U>& u); template <class U> constexpr reverse_iterator& operator=(const reverse_iterator<U>& u); constexpr Iterator base() const; constexpr reference operator*() const; constexpr pointer operator->() const; constexpr reverse_iterator& operator++(); constexpr reverse_iterator operator++(int); constexpr reverse_iterator& operator--(); constexpr reverse_iterator operator--(int); constexpr reverse_iterator operator+ (difference_type n) const; constexpr reverse_iterator& operator+=(difference_type n); constexpr reverse_iterator operator- (difference_type n) const; constexpr reverse_iterator& operator-=(difference_type n); constexpr reference operator[](difference_type n) const; }; template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator==(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator<(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator!=(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator>(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator>=(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator<=(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr auto operator-(const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y) -> decltype(__y.base() - __x.base()); // constexpr in C++17 template <class Iterator> constexpr reverse_iterator<Iterator> operator+(typename reverse_iterator<Iterator>::difference_type n, const reverse_iterator<Iterator>& x); // constexpr in C++17 template <class Iterator> constexpr reverse_iterator<Iterator> make_reverse_iterator(Iterator i); // C++14, constexpr in C++17 template <class Container> class back_insert_iterator : public iterator<output_iterator_tag, void, void, void, void> // until C++17 { protected: Container* container; public: typedef Container container_type; typedef void value_type; typedef void difference_type; // until C++20 typedef ptrdiff_t difference_type; // since C++20 typedef void reference; typedef void pointer; constexpr back_insert_iterator() noexcept = default; // since C++20 explicit back_insert_iterator(Container& x); // constexpr in C++20 back_insert_iterator& operator=(const typename Container::value_type& value); // constexpr in C++20 back_insert_iterator& operator*(); // constexpr in C++20 back_insert_iterator& operator++(); // constexpr in C++20 back_insert_iterator operator++(int); // constexpr in C++20 }; template <class Container> back_insert_iterator<Container> back_inserter(Container& x); // constexpr in C++20 template <class Container> class front_insert_iterator : public iterator<output_iterator_tag, void, void, void, void> // until C++17 { protected: Container* container; public: typedef Container container_type; typedef void value_type; typedef void difference_type; // until C++20 typedef ptrdiff_t difference_type; // since C++20 typedef void reference; typedef void pointer; constexpr front_insert_iterator() noexcept = default; // since C++20 explicit front_insert_iterator(Container& x); // constexpr in C++20 front_insert_iterator& operator=(const typename Container::value_type& value); // constexpr in C++20 front_insert_iterator& operator*(); // constexpr in C++20 front_insert_iterator& operator++(); // constexpr in C++20 front_insert_iterator operator++(int); // constexpr in C++20 }; template <class Container> front_insert_iterator<Container> front_inserter(Container& x); // constexpr in C++20 template <class Container> class insert_iterator : public iterator<output_iterator_tag, void, void, void, void> // until C++17 { protected: Container* container; typename Container::iterator iter; public: typedef Container container_type; typedef void value_type; typedef void difference_type; // until C++20 typedef ptrdiff_t difference_type; // since C++20 typedef void reference; typedef void pointer; insert_iterator() = default; // since C++20 insert_iterator(Container& x, typename Container::iterator i); // constexpr in C++20 insert_iterator& operator=(const typename Container::value_type& value); // constexpr in C++20 insert_iterator& operator*(); // constexpr in C++20 insert_iterator& operator++(); // constexpr in C++20 insert_iterator& operator++(int); // constexpr in C++20 }; template <class Container, class Iterator> insert_iterator<Container> inserter(Container& x, Iterator i); // constexpr in C++20 template <class Iterator> class move_iterator { public: typedef Iterator iterator_type; typedef typename iterator_traits<Iterator>::difference_type difference_type; typedef Iterator pointer; typedef typename iterator_traits<Iterator>::value_type value_type; typedef typename iterator_traits<Iterator>::iterator_category iterator_category; typedef value_type&& reference; constexpr move_iterator(); // all the constexprs are in C++17 constexpr explicit move_iterator(Iterator i); template <class U> constexpr move_iterator(const move_iterator<U>& u); template <class U> constexpr move_iterator& operator=(const move_iterator<U>& u); constexpr iterator_type base() const; constexpr reference operator*() const; constexpr pointer operator->() const; constexpr move_iterator& operator++(); constexpr move_iterator operator++(int); constexpr move_iterator& operator--(); constexpr move_iterator operator--(int); constexpr move_iterator operator+(difference_type n) const; constexpr move_iterator& operator+=(difference_type n); constexpr move_iterator operator-(difference_type n) const; constexpr move_iterator& operator-=(difference_type n); constexpr unspecified operator[](difference_type n) const; private: Iterator current; // exposition only }; template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator==(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator!=(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator<(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator<=(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator>(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr bool // constexpr in C++17 operator>=(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y); template <class Iterator1, class Iterator2> constexpr auto // constexpr in C++17 operator-(const move_iterator<Iterator1>& x, const move_iterator<Iterator2>& y) -> decltype(x.base() - y.base()); template <class Iterator> constexpr move_iterator<Iterator> operator+( // constexpr in C++17 typename move_iterator<Iterator>::difference_type n, const move_iterator<Iterator>& x); template <class Iterator> // constexpr in C++17 constexpr move_iterator<Iterator> make_move_iterator(const Iterator& i); // [default.sentinel], default sentinel struct default_sentinel_t; inline constexpr default_sentinel_t default_sentinel{}; template <class T, class charT = char, class traits = char_traits<charT>, class Distance = ptrdiff_t> class istream_iterator : public iterator<input_iterator_tag, T, Distance, const T*, const T&> // until C++17 { public: typedef input_iterator_tag iterator_category; typedef T value_type; typedef Distance difference_type; typedef const T* pointer; typedef const T& reference; typedef charT char_type; typedef traits traits_type; typedef basic_istream<charT, traits> istream_type; constexpr istream_iterator(); istream_iterator(istream_type& s); istream_iterator(const istream_iterator& x); ~istream_iterator(); const T& operator*() const; const T* operator->() const; istream_iterator& operator++(); istream_iterator operator++(int); }; template <class T, class charT, class traits, class Distance> bool operator==(const istream_iterator<T,charT,traits,Distance>& x, const istream_iterator<T,charT,traits,Distance>& y); template <class T, class charT, class traits, class Distance> bool operator!=(const istream_iterator<T,charT,traits,Distance>& x, const istream_iterator<T,charT,traits,Distance>& y); template <class T, class charT = char, class traits = char_traits<charT> > class ostream_iterator : public iterator<output_iterator_tag, void, void, void, void> // until C++17 { public: typedef output_iterator_tag iterator_category; typedef void value_type; typedef void difference_type; // until C++20 typedef ptrdiff_t difference_type; // since C++20 typedef void pointer; typedef void reference; typedef charT char_type; typedef traits traits_type; typedef basic_ostream<charT,traits> ostream_type; constexpr ostream_iterator() noexcept = default; // since C++20 ostream_iterator(ostream_type& s); ostream_iterator(ostream_type& s, const charT* delimiter); ostream_iterator(const ostream_iterator& x); ~ostream_iterator(); ostream_iterator& operator=(const T& value); ostream_iterator& operator*(); ostream_iterator& operator++(); ostream_iterator& operator++(int); }; template<class charT, class traits = char_traits<charT> > class istreambuf_iterator : public iterator<input_iterator_tag, charT, traits::off_type, unspecified, charT> // until C++17 { public: typedef input_iterator_tag iterator_category; typedef charT value_type; typedef traits::off_type difference_type; typedef unspecified pointer; typedef charT reference; typedef charT char_type; typedef traits traits_type; typedef traits::int_type int_type; typedef basic_streambuf<charT, traits> streambuf_type; typedef basic_istream<charT, traits> istream_type; istreambuf_iterator() noexcept; istreambuf_iterator(istream_type& s) noexcept; istreambuf_iterator(streambuf_type* s) noexcept; istreambuf_iterator(a-private-type) noexcept; charT operator*() const; pointer operator->() const; istreambuf_iterator& operator++(); a-private-type operator++(int); bool equal(const istreambuf_iterator& b) const; }; template <class charT, class traits> bool operator==(const istreambuf_iterator<charT,traits>& a, const istreambuf_iterator<charT,traits>& b); template <class charT, class traits> bool operator!=(const istreambuf_iterator<charT,traits>& a, const istreambuf_iterator<charT,traits>& b); template <class charT, class traits = char_traits<charT> > class ostreambuf_iterator : public iterator<output_iterator_tag, void, void, void, void> // until C++17 { public: typedef output_iterator_tag iterator_category; typedef void value_type; typedef void difference_type; // until C++20 typedef ptrdiff_t difference_type; // since C++20 typedef void pointer; typedef void reference; typedef charT char_type; typedef traits traits_type; typedef basic_streambuf<charT, traits> streambuf_type; typedef basic_ostream<charT, traits> ostream_type; constexpr ostreambuf_iterator() noexcept = default; // since C++20 ostreambuf_iterator(ostream_type& s) noexcept; ostreambuf_iterator(streambuf_type* s) noexcept; ostreambuf_iterator& operator=(charT c); ostreambuf_iterator& operator*(); ostreambuf_iterator& operator++(); ostreambuf_iterator& operator++(int); bool failed() const noexcept; }; template <class C> constexpr auto begin(C& c) -> decltype(c.begin()); template <class C> constexpr auto begin(const C& c) -> decltype(c.begin()); template <class C> constexpr auto end(C& c) -> decltype(c.end()); template <class C> constexpr auto end(const C& c) -> decltype(c.end()); template <class T, size_t N> constexpr T* begin(T (&array)[N]); template <class T, size_t N> constexpr T* end(T (&array)[N]); template <class C> auto constexpr cbegin(const C& c) -> decltype(std::begin(c)); // C++14 template <class C> auto constexpr cend(const C& c) -> decltype(std::end(c)); // C++14 template <class C> auto constexpr rbegin(C& c) -> decltype(c.rbegin()); // C++14 template <class C> auto constexpr rbegin(const C& c) -> decltype(c.rbegin()); // C++14 template <class C> auto constexpr rend(C& c) -> decltype(c.rend()); // C++14 template <class C> constexpr auto rend(const C& c) -> decltype(c.rend()); // C++14 template <class E> reverse_iterator<const E*> constexpr rbegin(initializer_list<E> il); // C++14 template <class E> reverse_iterator<const E*> constexpr rend(initializer_list<E> il); // C++14 template <class T, size_t N> reverse_iterator<T*> constexpr rbegin(T (&array)[N]); // C++14 template <class T, size_t N> reverse_iterator<T*> constexpr rend(T (&array)[N]); // C++14 template <class C> constexpr auto crbegin(const C& c) -> decltype(std::rbegin(c)); // C++14 template <class C> constexpr auto crend(const C& c) -> decltype(std::rend(c)); // C++14 // 24.8, container access: template <class C> constexpr auto size(const C& c) -> decltype(c.size()); // C++17 template <class T, size_t N> constexpr size_t size(const T (&array)[N]) noexcept; // C++17 template <class C> constexpr auto ssize(const C& c) -> common_type_t<ptrdiff_t, make_signed_t<decltype(c.size())>>; // C++20 template <class T, ptrdiff_t> constexpr ptrdiff_t ssize(const T (&array)[N]) noexcept; // C++20 template <class C> constexpr auto empty(const C& c) -> decltype(c.empty()); // C++17 template <class T, size_t N> constexpr bool empty(const T (&array)[N]) noexcept; // C++17 template <class E> constexpr bool empty(initializer_list<E> il) noexcept; // C++17 template <class C> constexpr auto data(C& c) -> decltype(c.data()); // C++17 template <class C> constexpr auto data(const C& c) -> decltype(c.data()); // C++17 template <class T, size_t N> constexpr T* data(T (&array)[N]) noexcept; // C++17 template <class E> constexpr const E* data(initializer_list<E> il) noexcept; // C++17 } // std */ #include <__config> #include <__debug> #include <__functional_base> #include <__iterator/advance.h> #include <__iterator/concepts.h> #include <__iterator/default_sentinel.h> #include <__iterator/incrementable_traits.h> #include <__iterator/indirect_concepts.h> #include <__iterator/iter_move.h> #include <__iterator/iterator_traits.h> #include <__iterator/next.h> #include <__iterator/prev.h> #include <__iterator/projected.h> #include <__iterator/readable_traits.h> #include <__memory/addressof.h> #include <__memory/pointer_traits.h> #include <compare> #include <concepts> // Mandated by the Standard. #include <cstddef> #include <initializer_list> #include <iosfwd> // for forward declarations of vector and string #include <type_traits> #include <version> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) #pragma GCC system_header #endif _LIBCPP_BEGIN_NAMESPACE_STD template<class _Category, class _Tp, class _Distance = ptrdiff_t, class _Pointer = _Tp*, class _Reference = _Tp&> struct _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 iterator { typedef _Tp value_type; typedef _Distance difference_type; typedef _Pointer pointer; typedef _Reference reference; typedef _Category iterator_category; }; template <class _InputIter> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 typename iterator_traits<_InputIter>::difference_type __distance(_InputIter __first, _InputIter __last, input_iterator_tag) { typename iterator_traits<_InputIter>::difference_type __r(0); for (; __first != __last; ++__first) ++__r; return __r; } template <class _RandIter> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 typename iterator_traits<_RandIter>::difference_type __distance(_RandIter __first, _RandIter __last, random_access_iterator_tag) { return __last - __first; } template <class _InputIter> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 typename iterator_traits<_InputIter>::difference_type distance(_InputIter __first, _InputIter __last) { return _VSTD::__distance(__first, __last, typename iterator_traits<_InputIter>::iterator_category()); } template <class _Tp, class = void> struct __is_stashing_iterator : false_type {}; template <class _Tp> struct __is_stashing_iterator<_Tp, typename __void_t<typename _Tp::__stashing_iterator_tag>::type> : true_type {}; _LIBCPP_SUPPRESS_DEPRECATED_PUSH template <class _Iter> class _LIBCPP_TEMPLATE_VIS reverse_iterator #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) : public iterator<typename iterator_traits<_Iter>::iterator_category, typename iterator_traits<_Iter>::value_type, typename iterator_traits<_Iter>::difference_type, typename iterator_traits<_Iter>::pointer, typename iterator_traits<_Iter>::reference> #endif { _LIBCPP_SUPPRESS_DEPRECATED_POP private: #ifndef _LIBCPP_ABI_NO_ITERATOR_BASES _Iter __t; // no longer used as of LWG #2360, not removed due to ABI break #endif static_assert(!__is_stashing_iterator<_Iter>::value, "The specified iterator type cannot be used with reverse_iterator; " "Using stashing iterators with reverse_iterator causes undefined behavior"); protected: _Iter current; public: typedef _Iter iterator_type; typedef typename iterator_traits<_Iter>::difference_type difference_type; typedef typename iterator_traits<_Iter>::reference reference; typedef typename iterator_traits<_Iter>::pointer pointer; typedef _If<__is_cpp17_random_access_iterator<_Iter>::value, random_access_iterator_tag, typename iterator_traits<_Iter>::iterator_category> iterator_category; typedef typename iterator_traits<_Iter>::value_type value_type; #if _LIBCPP_STD_VER > 17 typedef _If<__is_cpp17_random_access_iterator<_Iter>::value, random_access_iterator_tag, bidirectional_iterator_tag> iterator_concept; #endif #ifndef _LIBCPP_ABI_NO_ITERATOR_BASES _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator() : __t(), current() {} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 explicit reverse_iterator(_Iter __x) : __t(__x), current(__x) {} template <class _Up, class = _EnableIf< !is_same<_Up, _Iter>::value && is_convertible<_Up const&, _Iter>::value > > _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator(const reverse_iterator<_Up>& __u) : __t(__u.base()), current(__u.base()) { } template <class _Up, class = _EnableIf< !is_same<_Up, _Iter>::value && is_convertible<_Up const&, _Iter>::value && is_assignable<_Up const&, _Iter>::value > > _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator& operator=(const reverse_iterator<_Up>& __u) { __t = current = __u.base(); return *this; } #else _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator() : current() {} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 explicit reverse_iterator(_Iter __x) : current(__x) {} template <class _Up, class = _EnableIf< !is_same<_Up, _Iter>::value && is_convertible<_Up const&, _Iter>::value > > _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator(const reverse_iterator<_Up>& __u) : current(__u.base()) { } template <class _Up, class = _EnableIf< !is_same<_Up, _Iter>::value && is_convertible<_Up const&, _Iter>::value && is_assignable<_Up const&, _Iter>::value > > _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator& operator=(const reverse_iterator<_Up>& __u) { current = __u.base(); return *this; } #endif _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 _Iter base() const {return current;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reference operator*() const {_Iter __tmp = current; return *--__tmp;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 pointer operator->() const {return _VSTD::addressof(operator*());} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator& operator++() {--current; return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator operator++(int) {reverse_iterator __tmp(*this); --current; return __tmp;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator& operator--() {++current; return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator operator--(int) {reverse_iterator __tmp(*this); ++current; return __tmp;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator operator+ (difference_type __n) const {return reverse_iterator(current - __n);} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator& operator+=(difference_type __n) {current -= __n; return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator operator- (difference_type __n) const {return reverse_iterator(current + __n);} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator& operator-=(difference_type __n) {current += __n; return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reference operator[](difference_type __n) const {return *(*this + __n);} }; template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator==(const reverse_iterator<_Iter1>& __x, const reverse_iterator<_Iter2>& __y) { return __x.base() == __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator<(const reverse_iterator<_Iter1>& __x, const reverse_iterator<_Iter2>& __y) { return __x.base() > __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator!=(const reverse_iterator<_Iter1>& __x, const reverse_iterator<_Iter2>& __y) { return __x.base() != __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator>(const reverse_iterator<_Iter1>& __x, const reverse_iterator<_Iter2>& __y) { return __x.base() < __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator>=(const reverse_iterator<_Iter1>& __x, const reverse_iterator<_Iter2>& __y) { return __x.base() <= __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator<=(const reverse_iterator<_Iter1>& __x, const reverse_iterator<_Iter2>& __y) { return __x.base() >= __y.base(); } #ifndef _LIBCPP_CXX03_LANG template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto operator-(const reverse_iterator<_Iter1>& __x, const reverse_iterator<_Iter2>& __y) -> decltype(__y.base() - __x.base()) { return __y.base() - __x.base(); } #else template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY typename reverse_iterator<_Iter1>::difference_type operator-(const reverse_iterator<_Iter1>& __x, const reverse_iterator<_Iter2>& __y) { return __y.base() - __x.base(); } #endif template <class _Iter> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator<_Iter> operator+(typename reverse_iterator<_Iter>::difference_type __n, const reverse_iterator<_Iter>& __x) { return reverse_iterator<_Iter>(__x.base() - __n); } #if _LIBCPP_STD_VER > 11 template <class _Iter> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator<_Iter> make_reverse_iterator(_Iter __i) { return reverse_iterator<_Iter>(__i); } #endif _LIBCPP_SUPPRESS_DEPRECATED_PUSH template <class _Container> class _LIBCPP_TEMPLATE_VIS back_insert_iterator #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) : public iterator<output_iterator_tag, void, void, void, void> #endif { _LIBCPP_SUPPRESS_DEPRECATED_POP protected: _Container* container; public: typedef output_iterator_tag iterator_category; typedef void value_type; #if _LIBCPP_STD_VER > 17 typedef ptrdiff_t difference_type; #else typedef void difference_type; #endif typedef void pointer; typedef void reference; typedef _Container container_type; #if _LIBCPP_STD_VER > 17 _LIBCPP_INLINE_VISIBILITY constexpr back_insert_iterator() noexcept = default; #endif _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 explicit back_insert_iterator(_Container& __x) : container(_VSTD::addressof(__x)) {} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator& operator=(const typename _Container::value_type& __value_) {container->push_back(__value_); return *this;} #ifndef _LIBCPP_CXX03_LANG _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator& operator=(typename _Container::value_type&& __value_) {container->push_back(_VSTD::move(__value_)); return *this;} #endif // _LIBCPP_CXX03_LANG _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator& operator*() {return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator& operator++() {return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator operator++(int) {return *this;} }; template <class _Container> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 back_insert_iterator<_Container> back_inserter(_Container& __x) { return back_insert_iterator<_Container>(__x); } _LIBCPP_SUPPRESS_DEPRECATED_PUSH template <class _Container> class _LIBCPP_TEMPLATE_VIS front_insert_iterator #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) : public iterator<output_iterator_tag, void, void, void, void> #endif { _LIBCPP_SUPPRESS_DEPRECATED_POP protected: _Container* container; public: typedef output_iterator_tag iterator_category; typedef void value_type; #if _LIBCPP_STD_VER > 17 typedef ptrdiff_t difference_type; #else typedef void difference_type; #endif typedef void pointer; typedef void reference; typedef _Container container_type; #if _LIBCPP_STD_VER > 17 _LIBCPP_INLINE_VISIBILITY constexpr front_insert_iterator() noexcept = default; #endif _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 explicit front_insert_iterator(_Container& __x) : container(_VSTD::addressof(__x)) {} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 front_insert_iterator& operator=(const typename _Container::value_type& __value_) {container->push_front(__value_); return *this;} #ifndef _LIBCPP_CXX03_LANG _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 front_insert_iterator& operator=(typename _Container::value_type&& __value_) {container->push_front(_VSTD::move(__value_)); return *this;} #endif // _LIBCPP_CXX03_LANG _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 front_insert_iterator& operator*() {return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 front_insert_iterator& operator++() {return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 front_insert_iterator operator++(int) {return *this;} }; template <class _Container> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 front_insert_iterator<_Container> front_inserter(_Container& __x) { return front_insert_iterator<_Container>(__x); } _LIBCPP_SUPPRESS_DEPRECATED_PUSH template <class _Container> class _LIBCPP_TEMPLATE_VIS insert_iterator #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) : public iterator<output_iterator_tag, void, void, void, void> #endif { _LIBCPP_SUPPRESS_DEPRECATED_POP protected: _Container* container; typename _Container::iterator iter; public: typedef output_iterator_tag iterator_category; typedef void value_type; #if _LIBCPP_STD_VER > 17 typedef ptrdiff_t difference_type; #else typedef void difference_type; #endif typedef void pointer; typedef void reference; typedef _Container container_type; #if _LIBCPP_STD_VER > 17 _LIBCPP_INLINE_VISIBILITY insert_iterator() = default; #endif _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator(_Container& __x, typename _Container::iterator __i) : container(_VSTD::addressof(__x)), iter(__i) {} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator=(const typename _Container::value_type& __value_) {iter = container->insert(iter, __value_); ++iter; return *this;} #ifndef _LIBCPP_CXX03_LANG _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator=(typename _Container::value_type&& __value_) {iter = container->insert(iter, _VSTD::move(__value_)); ++iter; return *this;} #endif // _LIBCPP_CXX03_LANG _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator*() {return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator++() {return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator& operator++(int) {return *this;} }; template <class _Container> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 insert_iterator<_Container> inserter(_Container& __x, typename _Container::iterator __i) { return insert_iterator<_Container>(__x, __i); } _LIBCPP_SUPPRESS_DEPRECATED_PUSH template <class _Tp, class _CharT = char, class _Traits = char_traits<_CharT>, class _Distance = ptrdiff_t> class _LIBCPP_TEMPLATE_VIS istream_iterator #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) : public iterator<input_iterator_tag, _Tp, _Distance, const _Tp*, const _Tp&> #endif { _LIBCPP_SUPPRESS_DEPRECATED_POP public: typedef input_iterator_tag iterator_category; typedef _Tp value_type; typedef _Distance difference_type; typedef const _Tp* pointer; typedef const _Tp& reference; typedef _CharT char_type; typedef _Traits traits_type; typedef basic_istream<_CharT,_Traits> istream_type; private: istream_type* __in_stream_; _Tp __value_; public: _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR istream_iterator() : __in_stream_(nullptr), __value_() {} _LIBCPP_INLINE_VISIBILITY istream_iterator(istream_type& __s) : __in_stream_(_VSTD::addressof(__s)) { if (!(*__in_stream_ >> __value_)) __in_stream_ = nullptr; } _LIBCPP_INLINE_VISIBILITY const _Tp& operator*() const {return __value_;} _LIBCPP_INLINE_VISIBILITY const _Tp* operator->() const {return _VSTD::addressof((operator*()));} _LIBCPP_INLINE_VISIBILITY istream_iterator& operator++() { if (!(*__in_stream_ >> __value_)) __in_stream_ = nullptr; return *this; } _LIBCPP_INLINE_VISIBILITY istream_iterator operator++(int) {istream_iterator __t(*this); ++(*this); return __t;} template <class _Up, class _CharU, class _TraitsU, class _DistanceU> friend _LIBCPP_INLINE_VISIBILITY bool operator==(const istream_iterator<_Up, _CharU, _TraitsU, _DistanceU>& __x, const istream_iterator<_Up, _CharU, _TraitsU, _DistanceU>& __y); template <class _Up, class _CharU, class _TraitsU, class _DistanceU> friend _LIBCPP_INLINE_VISIBILITY bool operator==(const istream_iterator<_Up, _CharU, _TraitsU, _DistanceU>& __x, const istream_iterator<_Up, _CharU, _TraitsU, _DistanceU>& __y); }; template <class _Tp, class _CharT, class _Traits, class _Distance> inline _LIBCPP_INLINE_VISIBILITY bool operator==(const istream_iterator<_Tp, _CharT, _Traits, _Distance>& __x, const istream_iterator<_Tp, _CharT, _Traits, _Distance>& __y) { return __x.__in_stream_ == __y.__in_stream_; } template <class _Tp, class _CharT, class _Traits, class _Distance> inline _LIBCPP_INLINE_VISIBILITY bool operator!=(const istream_iterator<_Tp, _CharT, _Traits, _Distance>& __x, const istream_iterator<_Tp, _CharT, _Traits, _Distance>& __y) { return !(__x == __y); } _LIBCPP_SUPPRESS_DEPRECATED_PUSH template <class _Tp, class _CharT = char, class _Traits = char_traits<_CharT> > class _LIBCPP_TEMPLATE_VIS ostream_iterator #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) : public iterator<output_iterator_tag, void, void, void, void> #endif { _LIBCPP_SUPPRESS_DEPRECATED_POP public: typedef output_iterator_tag iterator_category; typedef void value_type; #if _LIBCPP_STD_VER > 17 typedef ptrdiff_t difference_type; #else typedef void difference_type; #endif typedef void pointer; typedef void reference; typedef _CharT char_type; typedef _Traits traits_type; typedef basic_ostream<_CharT, _Traits> ostream_type; private: ostream_type* __out_stream_; const char_type* __delim_; public: #if _LIBCPP_STD_VER > 17 _LIBCPP_INLINE_VISIBILITY constexpr ostream_iterator() noexcept = default; #endif _LIBCPP_INLINE_VISIBILITY ostream_iterator(ostream_type& __s) _NOEXCEPT : __out_stream_(_VSTD::addressof(__s)), __delim_(nullptr) {} _LIBCPP_INLINE_VISIBILITY ostream_iterator(ostream_type& __s, const _CharT* __delimiter) _NOEXCEPT : __out_stream_(_VSTD::addressof(__s)), __delim_(__delimiter) {} _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator=(const _Tp& __value_) { *__out_stream_ << __value_; if (__delim_) *__out_stream_ << __delim_; return *this; } _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator*() {return *this;} _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator++() {return *this;} _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator++(int) {return *this;} }; _LIBCPP_SUPPRESS_DEPRECATED_PUSH template<class _CharT, class _Traits> class _LIBCPP_TEMPLATE_VIS istreambuf_iterator #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) : public iterator<input_iterator_tag, _CharT, typename _Traits::off_type, _CharT*, _CharT> #endif { _LIBCPP_SUPPRESS_DEPRECATED_POP public: typedef input_iterator_tag iterator_category; typedef _CharT value_type; typedef typename _Traits::off_type difference_type; typedef _CharT* pointer; typedef _CharT reference; typedef _CharT char_type; typedef _Traits traits_type; typedef typename _Traits::int_type int_type; typedef basic_streambuf<_CharT,_Traits> streambuf_type; typedef basic_istream<_CharT,_Traits> istream_type; private: mutable streambuf_type* __sbuf_; class __proxy { char_type __keep_; streambuf_type* __sbuf_; _LIBCPP_INLINE_VISIBILITY __proxy(char_type __c, streambuf_type* __s) : __keep_(__c), __sbuf_(__s) {} friend class istreambuf_iterator; public: _LIBCPP_INLINE_VISIBILITY char_type operator*() const {return __keep_;} }; _LIBCPP_INLINE_VISIBILITY bool __test_for_eof() const { if (__sbuf_ && traits_type::eq_int_type(__sbuf_->sgetc(), traits_type::eof())) __sbuf_ = nullptr; return __sbuf_ == nullptr; } public: _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR istreambuf_iterator() _NOEXCEPT : __sbuf_(nullptr) {} _LIBCPP_INLINE_VISIBILITY istreambuf_iterator(istream_type& __s) _NOEXCEPT : __sbuf_(__s.rdbuf()) {} _LIBCPP_INLINE_VISIBILITY istreambuf_iterator(streambuf_type* __s) _NOEXCEPT : __sbuf_(__s) {} _LIBCPP_INLINE_VISIBILITY istreambuf_iterator(const __proxy& __p) _NOEXCEPT : __sbuf_(__p.__sbuf_) {} _LIBCPP_INLINE_VISIBILITY char_type operator*() const {return static_cast<char_type>(__sbuf_->sgetc());} _LIBCPP_INLINE_VISIBILITY istreambuf_iterator& operator++() { __sbuf_->sbumpc(); return *this; } _LIBCPP_INLINE_VISIBILITY __proxy operator++(int) { return __proxy(__sbuf_->sbumpc(), __sbuf_); } _LIBCPP_INLINE_VISIBILITY bool equal(const istreambuf_iterator& __b) const {return __test_for_eof() == __b.__test_for_eof();} }; template <class _CharT, class _Traits> inline _LIBCPP_INLINE_VISIBILITY bool operator==(const istreambuf_iterator<_CharT,_Traits>& __a, const istreambuf_iterator<_CharT,_Traits>& __b) {return __a.equal(__b);} template <class _CharT, class _Traits> inline _LIBCPP_INLINE_VISIBILITY bool operator!=(const istreambuf_iterator<_CharT,_Traits>& __a, const istreambuf_iterator<_CharT,_Traits>& __b) {return !__a.equal(__b);} _LIBCPP_SUPPRESS_DEPRECATED_PUSH template <class _CharT, class _Traits> class _LIBCPP_TEMPLATE_VIS ostreambuf_iterator #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) : public iterator<output_iterator_tag, void, void, void, void> #endif { _LIBCPP_SUPPRESS_DEPRECATED_POP public: typedef output_iterator_tag iterator_category; typedef void value_type; #if _LIBCPP_STD_VER > 17 typedef ptrdiff_t difference_type; #else typedef void difference_type; #endif typedef void pointer; typedef void reference; typedef _CharT char_type; typedef _Traits traits_type; typedef basic_streambuf<_CharT, _Traits> streambuf_type; typedef basic_ostream<_CharT, _Traits> ostream_type; private: streambuf_type* __sbuf_; public: #if _LIBCPP_STD_VER > 17 _LIBCPP_INLINE_VISIBILITY constexpr ostreambuf_iterator() noexcept = default; #endif _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator(ostream_type& __s) _NOEXCEPT : __sbuf_(__s.rdbuf()) {} _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator(streambuf_type* __s) _NOEXCEPT : __sbuf_(__s) {} _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator=(_CharT __c) { if (__sbuf_ && traits_type::eq_int_type(__sbuf_->sputc(__c), traits_type::eof())) __sbuf_ = nullptr; return *this; } _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator*() {return *this;} _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator++() {return *this;} _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator++(int) {return *this;} _LIBCPP_INLINE_VISIBILITY bool failed() const _NOEXCEPT {return __sbuf_ == nullptr;} template <class _Ch, class _Tr> friend _LIBCPP_HIDDEN ostreambuf_iterator<_Ch, _Tr> __pad_and_output(ostreambuf_iterator<_Ch, _Tr> __s, const _Ch* __ob, const _Ch* __op, const _Ch* __oe, ios_base& __iob, _Ch __fl); }; template <class _Iter> class _LIBCPP_TEMPLATE_VIS move_iterator { private: _Iter __i; public: typedef _Iter iterator_type; typedef typename iterator_traits<iterator_type>::value_type value_type; typedef typename iterator_traits<iterator_type>::difference_type difference_type; typedef iterator_type pointer; typedef _If<__is_cpp17_random_access_iterator<_Iter>::value, random_access_iterator_tag, typename iterator_traits<_Iter>::iterator_category> iterator_category; #if _LIBCPP_STD_VER > 17 typedef input_iterator_tag iterator_concept; #endif #ifndef _LIBCPP_CXX03_LANG typedef typename iterator_traits<iterator_type>::reference __reference; typedef typename conditional< is_reference<__reference>::value, typename remove_reference<__reference>::type&&, __reference >::type reference; #else typedef typename iterator_traits<iterator_type>::reference reference; #endif _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator() : __i() {} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 explicit move_iterator(_Iter __x) : __i(__x) {} template <class _Up, class = _EnableIf< !is_same<_Up, _Iter>::value && is_convertible<_Up const&, _Iter>::value > > _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator(const move_iterator<_Up>& __u) : __i(__u.base()) {} template <class _Up, class = _EnableIf< !is_same<_Up, _Iter>::value && is_convertible<_Up const&, _Iter>::value && is_assignable<_Iter&, _Up const&>::value > > _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator& operator=(const move_iterator<_Up>& __u) { __i = __u.base(); return *this; } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 _Iter base() const {return __i;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reference operator*() const { return static_cast<reference>(*__i); } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 pointer operator->() const { return __i;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator& operator++() {++__i; return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator operator++(int) {move_iterator __tmp(*this); ++__i; return __tmp;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator& operator--() {--__i; return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator operator--(int) {move_iterator __tmp(*this); --__i; return __tmp;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator operator+ (difference_type __n) const {return move_iterator(__i + __n);} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator& operator+=(difference_type __n) {__i += __n; return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator operator- (difference_type __n) const {return move_iterator(__i - __n);} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator& operator-=(difference_type __n) {__i -= __n; return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reference operator[](difference_type __n) const { return static_cast<reference>(__i[__n]); } }; template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator==(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) { return __x.base() == __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator<(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) { return __x.base() < __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator!=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) { return __x.base() != __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator>(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) { return __x.base() > __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator>=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) { return __x.base() >= __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 bool operator<=(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) { return __x.base() <= __y.base(); } #ifndef _LIBCPP_CXX03_LANG template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto operator-(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) -> decltype(__x.base() - __y.base()) { return __x.base() - __y.base(); } #else template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY typename move_iterator<_Iter1>::difference_type operator-(const move_iterator<_Iter1>& __x, const move_iterator<_Iter2>& __y) { return __x.base() - __y.base(); } #endif template <class _Iter> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator<_Iter> operator+(typename move_iterator<_Iter>::difference_type __n, const move_iterator<_Iter>& __x) { return move_iterator<_Iter>(__x.base() + __n); } template <class _Iter> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 move_iterator<_Iter> make_move_iterator(_Iter __i) { return move_iterator<_Iter>(__i); } // __wrap_iter template <class _Iter> class __wrap_iter; template <class _Iter1, class _Iter2> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator==(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator<(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator!=(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator>(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator>=(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator<=(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; #ifndef _LIBCPP_CXX03_LANG template <class _Iter1, class _Iter2> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG auto operator-(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT -> decltype(__x.base() - __y.base()); #else template <class _Iter1, class _Iter2> _LIBCPP_INLINE_VISIBILITY typename __wrap_iter<_Iter1>::difference_type operator-(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; #endif template <class _Iter> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter<_Iter> operator+(typename __wrap_iter<_Iter>::difference_type, __wrap_iter<_Iter>) _NOEXCEPT; template <class _Ip, class _Op> _Op _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 copy(_Ip, _Ip, _Op); template <class _B1, class _B2> _B2 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 copy_backward(_B1, _B1, _B2); template <class _Ip, class _Op> _Op _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 move(_Ip, _Ip, _Op); template <class _B1, class _B2> _B2 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 move_backward(_B1, _B1, _B2); template <class _Iter> class __wrap_iter { public: typedef _Iter iterator_type; typedef typename iterator_traits<iterator_type>::value_type value_type; typedef typename iterator_traits<iterator_type>::difference_type difference_type; typedef typename iterator_traits<iterator_type>::pointer pointer; typedef typename iterator_traits<iterator_type>::reference reference; typedef typename iterator_traits<iterator_type>::iterator_category iterator_category; #if _LIBCPP_STD_VER > 17 typedef contiguous_iterator_tag iterator_concept; #endif private: iterator_type __i; public: _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter() _NOEXCEPT #if _LIBCPP_STD_VER > 11 : __i{} #endif { #if _LIBCPP_DEBUG_LEVEL == 2 __get_db()->__insert_i(this); #endif } template <class _Up> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter(const __wrap_iter<_Up>& __u, typename enable_if<is_convertible<_Up, iterator_type>::value>::type* = nullptr) _NOEXCEPT : __i(__u.base()) { #if _LIBCPP_DEBUG_LEVEL == 2 __get_db()->__iterator_copy(this, &__u); #endif } #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter(const __wrap_iter& __x) : __i(__x.base()) { __get_db()->__iterator_copy(this, &__x); } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter& operator=(const __wrap_iter& __x) { if (this != &__x) { __get_db()->__iterator_copy(this, &__x); __i = __x.__i; } return *this; } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG ~__wrap_iter() { __get_db()->__erase_i(this); } #endif _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG reference operator*() const _NOEXCEPT { #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this), "Attempted to dereference a non-dereferenceable iterator"); #endif return *__i; } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG pointer operator->() const _NOEXCEPT { #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this), "Attempted to dereference a non-dereferenceable iterator"); #endif return _VSTD::__to_address(__i); } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter& operator++() _NOEXCEPT { #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this), "Attempted to increment a non-incrementable iterator"); #endif ++__i; return *this; } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter operator++(int) _NOEXCEPT {__wrap_iter __tmp(*this); ++(*this); return __tmp;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter& operator--() _NOEXCEPT { #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_ASSERT(__get_const_db()->__decrementable(this), "Attempted to decrement a non-decrementable iterator"); #endif --__i; return *this; } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter operator--(int) _NOEXCEPT {__wrap_iter __tmp(*this); --(*this); return __tmp;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter operator+ (difference_type __n) const _NOEXCEPT {__wrap_iter __w(*this); __w += __n; return __w;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter& operator+=(difference_type __n) _NOEXCEPT { #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_ASSERT(__get_const_db()->__addable(this, __n), "Attempted to add/subtract an iterator outside its valid range"); #endif __i += __n; return *this; } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter operator- (difference_type __n) const _NOEXCEPT {return *this + (-__n);} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter& operator-=(difference_type __n) _NOEXCEPT {*this += -__n; return *this;} _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG reference operator[](difference_type __n) const _NOEXCEPT { #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_ASSERT(__get_const_db()->__subscriptable(this, __n), "Attempted to subscript an iterator outside its valid range"); #endif return __i[__n]; } _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG iterator_type base() const _NOEXCEPT {return __i;} private: #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter(const void* __p, iterator_type __x) : __i(__x) { __get_db()->__insert_ic(this, __p); } #else _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter(iterator_type __x) _NOEXCEPT : __i(__x) {} #endif template <class _Up> friend class __wrap_iter; template <class _CharT, class _Traits, class _Alloc> friend class basic_string; template <class _Tp, class _Alloc> friend class _LIBCPP_TEMPLATE_VIS vector; template <class _Tp, size_t> friend class _LIBCPP_TEMPLATE_VIS span; template <class _Iter1, class _Iter2> _LIBCPP_CONSTEXPR_IF_NODEBUG friend bool operator==(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_CONSTEXPR_IF_NODEBUG friend bool operator<(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_CONSTEXPR_IF_NODEBUG friend bool operator!=(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_CONSTEXPR_IF_NODEBUG friend bool operator>(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_CONSTEXPR_IF_NODEBUG friend bool operator>=(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; template <class _Iter1, class _Iter2> _LIBCPP_CONSTEXPR_IF_NODEBUG friend bool operator<=(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; #ifndef _LIBCPP_CXX03_LANG template <class _Iter1, class _Iter2> _LIBCPP_CONSTEXPR_IF_NODEBUG friend auto operator-(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT -> decltype(__x.base() - __y.base()); #else template <class _Iter1, class _Iter2> _LIBCPP_CONSTEXPR_IF_NODEBUG friend typename __wrap_iter<_Iter1>::difference_type operator-(const __wrap_iter<_Iter1>&, const __wrap_iter<_Iter2>&) _NOEXCEPT; #endif template <class _Iter1> _LIBCPP_CONSTEXPR_IF_NODEBUG friend __wrap_iter<_Iter1> operator+(typename __wrap_iter<_Iter1>::difference_type, __wrap_iter<_Iter1>) _NOEXCEPT; }; #if _LIBCPP_STD_VER <= 17 template <class _It> struct __is_cpp17_contiguous_iterator<__wrap_iter<_It> > : true_type {}; #endif template <class _Iter> _LIBCPP_CONSTEXPR decltype(_VSTD::__to_address(declval<_Iter>())) __to_address(__wrap_iter<_Iter> __w) _NOEXCEPT { return _VSTD::__to_address(__w.base()); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator==(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT { return __x.base() == __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator<(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT { #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_ASSERT(__get_const_db()->__less_than_comparable(&__x, &__y), "Attempted to compare incomparable iterators"); #endif return __x.base() < __y.base(); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator!=(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT { return !(__x == __y); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator>(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT { return __y < __x; } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator>=(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT { return !(__x < __y); } template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator<=(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT { return !(__y < __x); } template <class _Iter1> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator!=(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter1>& __y) _NOEXCEPT { return !(__x == __y); } template <class _Iter1> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator>(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter1>& __y) _NOEXCEPT { return __y < __x; } template <class _Iter1> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator>=(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter1>& __y) _NOEXCEPT { return !(__x < __y); } template <class _Iter1> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG bool operator<=(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter1>& __y) _NOEXCEPT { return !(__y < __x); } #ifndef _LIBCPP_CXX03_LANG template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG auto operator-(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT -> decltype(__x.base() - __y.base()) { #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_ASSERT(__get_const_db()->__less_than_comparable(&__x, &__y), "Attempted to subtract incompatible iterators"); #endif return __x.base() - __y.base(); } #else template <class _Iter1, class _Iter2> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG typename __wrap_iter<_Iter1>::difference_type operator-(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT { #if _LIBCPP_DEBUG_LEVEL == 2 _LIBCPP_ASSERT(__get_const_db()->__less_than_comparable(&__x, &__y), "Attempted to subtract incompatible iterators"); #endif return __x.base() - __y.base(); } #endif template <class _Iter> inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG __wrap_iter<_Iter> operator+(typename __wrap_iter<_Iter>::difference_type __n, __wrap_iter<_Iter> __x) _NOEXCEPT { __x += __n; return __x; } template <class _Tp, size_t _Np> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 _Tp* begin(_Tp (&__array)[_Np]) { return __array; } template <class _Tp, size_t _Np> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 _Tp* end(_Tp (&__array)[_Np]) { return __array + _Np; } #if !defined(_LIBCPP_CXX03_LANG) template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto begin(_Cp& __c) -> decltype(__c.begin()) { return __c.begin(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto begin(const _Cp& __c) -> decltype(__c.begin()) { return __c.begin(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto end(_Cp& __c) -> decltype(__c.end()) { return __c.end(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto end(const _Cp& __c) -> decltype(__c.end()) { return __c.end(); } #if _LIBCPP_STD_VER > 11 template <class _Tp, size_t _Np> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator<_Tp*> rbegin(_Tp (&__array)[_Np]) { return reverse_iterator<_Tp*>(__array + _Np); } template <class _Tp, size_t _Np> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator<_Tp*> rend(_Tp (&__array)[_Np]) { return reverse_iterator<_Tp*>(__array); } template <class _Ep> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator<const _Ep*> rbegin(initializer_list<_Ep> __il) { return reverse_iterator<const _Ep*>(__il.end()); } template <class _Ep> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reverse_iterator<const _Ep*> rend(initializer_list<_Ep> __il) { return reverse_iterator<const _Ep*>(__il.begin()); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 auto cbegin(const _Cp& __c) -> decltype(_VSTD::begin(__c)) { return _VSTD::begin(__c); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 auto cend(const _Cp& __c) -> decltype(_VSTD::end(__c)) { return _VSTD::end(__c); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto rbegin(_Cp& __c) -> decltype(__c.rbegin()) { return __c.rbegin(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto rbegin(const _Cp& __c) -> decltype(__c.rbegin()) { return __c.rbegin(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto rend(_Cp& __c) -> decltype(__c.rend()) { return __c.rend(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto rend(const _Cp& __c) -> decltype(__c.rend()) { return __c.rend(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto crbegin(const _Cp& __c) -> decltype(_VSTD::rbegin(__c)) { return _VSTD::rbegin(__c); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 auto crend(const _Cp& __c) -> decltype(_VSTD::rend(__c)) { return _VSTD::rend(__c); } #endif #else // defined(_LIBCPP_CXX03_LANG) template <class _Cp> _LIBCPP_INLINE_VISIBILITY typename _Cp::iterator begin(_Cp& __c) { return __c.begin(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY typename _Cp::const_iterator begin(const _Cp& __c) { return __c.begin(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY typename _Cp::iterator end(_Cp& __c) { return __c.end(); } template <class _Cp> _LIBCPP_INLINE_VISIBILITY typename _Cp::const_iterator end(const _Cp& __c) { return __c.end(); } #endif // !defined(_LIBCPP_CXX03_LANG) #if _LIBCPP_STD_VER > 14 // #if _LIBCPP_STD_VER > 11 // template <> // struct _LIBCPP_TEMPLATE_VIS plus<void> // { // template <class _T1, class _T2> // _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY // auto operator()(_T1&& __t, _T2&& __u) const // _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) + _VSTD::forward<_T2>(__u))) // -> decltype (_VSTD::forward<_T1>(__t) + _VSTD::forward<_T2>(__u)) // { return _VSTD::forward<_T1>(__t) + _VSTD::forward<_T2>(__u); } // typedef void is_transparent; // }; // #endif template <class _Cont> _LIBCPP_INLINE_VISIBILITY constexpr auto size(const _Cont& __c) _NOEXCEPT_(noexcept(__c.size())) -> decltype (__c.size()) { return __c.size(); } template <class _Tp, size_t _Sz> _LIBCPP_INLINE_VISIBILITY constexpr size_t size(const _Tp (&)[_Sz]) noexcept { return _Sz; } #if _LIBCPP_STD_VER > 17 template <class _Cont> _LIBCPP_INLINE_VISIBILITY constexpr auto ssize(const _Cont& __c) _NOEXCEPT_(noexcept(static_cast<common_type_t<ptrdiff_t, make_signed_t<decltype(__c.size())>>>(__c.size()))) -> common_type_t<ptrdiff_t, make_signed_t<decltype(__c.size())>> { return static_cast<common_type_t<ptrdiff_t, make_signed_t<decltype(__c.size())>>>(__c.size()); } template <class _Tp, ptrdiff_t _Sz> _LIBCPP_INLINE_VISIBILITY constexpr ptrdiff_t ssize(const _Tp (&)[_Sz]) noexcept { return _Sz; } #endif template <class _Cont> _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY constexpr auto empty(const _Cont& __c) _NOEXCEPT_(noexcept(__c.empty())) -> decltype (__c.empty()) { return __c.empty(); } template <class _Tp, size_t _Sz> _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY constexpr bool empty(const _Tp (&)[_Sz]) noexcept { return false; } template <class _Ep> _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY constexpr bool empty(initializer_list<_Ep> __il) noexcept { return __il.size() == 0; } template <class _Cont> constexpr _LIBCPP_INLINE_VISIBILITY auto data(_Cont& __c) _NOEXCEPT_(noexcept(__c.data())) -> decltype (__c.data()) { return __c.data(); } template <class _Cont> constexpr _LIBCPP_INLINE_VISIBILITY auto data(const _Cont& __c) _NOEXCEPT_(noexcept(__c.data())) -> decltype (__c.data()) { return __c.data(); } template <class _Tp, size_t _Sz> _LIBCPP_INLINE_VISIBILITY constexpr _Tp* data(_Tp (&__array)[_Sz]) noexcept { return __array; } template <class _Ep> _LIBCPP_INLINE_VISIBILITY constexpr const _Ep* data(initializer_list<_Ep> __il) noexcept { return __il.begin(); } #endif template <class _Container, class _Predicate> typename _Container::size_type __libcpp_erase_if_container(_Container& __c, _Predicate& __pred) { typename _Container::size_type __old_size = __c.size(); const typename _Container::iterator __last = __c.end(); for (typename _Container::iterator __iter = __c.begin(); __iter != __last;) { if (__pred(*__iter)) __iter = __c.erase(__iter); else ++__iter; } return __old_size - __c.size(); } _LIBCPP_END_NAMESPACE_STD #endif // _LIBCPP_ITERATOR