Warning, /include/c++/v1/stack is written in an unsupported language. File is not indexed.
0001 // -*- C++ -*-
0002 //===----------------------------------------------------------------------===//
0003 //
0004 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0005 // See https://llvm.org/LICENSE.txt for license information.
0006 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0007 //
0008 //===----------------------------------------------------------------------===//
0009
0010 #ifndef _LIBCPP_STACK
0011 #define _LIBCPP_STACK
0012
0013 /*
0014 stack synopsis
0015
0016 namespace std
0017 {
0018
0019 template <class T, class Container = deque<T>>
0020 class stack
0021 {
0022 public:
0023 typedef Container container_type;
0024 typedef typename container_type::value_type value_type;
0025 typedef typename container_type::reference reference;
0026 typedef typename container_type::const_reference const_reference;
0027 typedef typename container_type::size_type size_type;
0028
0029 protected:
0030 container_type c;
0031
0032 public:
0033 stack() = default;
0034 ~stack() = default;
0035
0036 stack(const stack& q) = default;
0037 stack(stack&& q) = default;
0038
0039 stack& operator=(const stack& q) = default;
0040 stack& operator=(stack&& q) = default;
0041
0042 explicit stack(const container_type& c);
0043 explicit stack(container_type&& c);
0044 template <class InputIterator> stack(InputIterator first, InputIterator last); // since C++23
0045 template<container-compatible-range<T> R> stack(from_range_t, R&& rg); // since C++23
0046 template <class Alloc> explicit stack(const Alloc& a);
0047 template <class Alloc> stack(const container_type& c, const Alloc& a);
0048 template <class Alloc> stack(container_type&& c, const Alloc& a);
0049 template <class Alloc> stack(const stack& c, const Alloc& a);
0050 template <class Alloc> stack(stack&& c, const Alloc& a);
0051 template<class InputIterator, class Alloc>
0052 stack(InputIterator first, InputIterator last, const Alloc&); // since C++23
0053 template<container-compatible-range<T> R, class Alloc>
0054 stack(from_range_t, R&& rg, const Alloc&); // since C++23
0055
0056 bool empty() const;
0057 size_type size() const;
0058 reference top();
0059 const_reference top() const;
0060
0061 void push(const value_type& x);
0062 void push(value_type&& x);
0063 template<container-compatible-range<T> R>
0064 void push_range(R&& rg); // C++23
0065 template <class... Args> reference emplace(Args&&... args); // reference in C++17
0066 void pop();
0067
0068 void swap(stack& c) noexcept(is_nothrow_swappable_v<Container>)
0069 };
0070
0071 template<class Container>
0072 stack(Container) -> stack<typename Container::value_type, Container>; // C++17
0073
0074 template<class InputIterator>
0075 stack(InputIterator, InputIterator) -> stack<iter-value-type<InputIterator>>; // since C++23
0076
0077 template<ranges::input_range R>
0078 stack(from_range_t, R&&) -> stack<ranges::range_value_t<R>>; // since C++23
0079
0080 template<class Container, class Allocator>
0081 stack(Container, Allocator) -> stack<typename Container::value_type, Container>; // C++17
0082
0083 template<class InputIterator, class Allocator>
0084 stack(InputIterator, InputIterator, Allocator)
0085 -> stack<iter-value-type<InputIterator>,
0086 deque<iter-value-type<InputIterator>, Allocator>>; // since C++23
0087
0088 template<ranges::input_range R, class Allocator>
0089 stack(from_range_t, R&&, Allocator)
0090 -> stack<ranges::range_value_t<R>, deque<ranges::range_value_t<R>, Allocator>>; // since C++23
0091
0092 template <class T, class Container>
0093 bool operator==(const stack<T, Container>& x, const stack<T, Container>& y);
0094 template <class T, class Container>
0095 bool operator< (const stack<T, Container>& x, const stack<T, Container>& y);
0096 template <class T, class Container>
0097 bool operator!=(const stack<T, Container>& x, const stack<T, Container>& y);
0098 template <class T, class Container>
0099 bool operator> (const stack<T, Container>& x, const stack<T, Container>& y);
0100 template <class T, class Container>
0101 bool operator>=(const stack<T, Container>& x, const stack<T, Container>& y);
0102 template <class T, class Container>
0103 bool operator<=(const stack<T, Container>& x, const stack<T, Container>& y);
0104 template<class T, three_way_comparable Container>
0105 compare_three_way_result_t<Container>
0106 operator<=>(const stack<T, Container>& x, const stack<T, Container>& y); // since C++20
0107
0108 template <class T, class Container>
0109 void swap(stack<T, Container>& x, stack<T, Container>& y)
0110 noexcept(noexcept(x.swap(y)));
0111
0112 } // std
0113
0114 */
0115
0116 #if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
0117 # include <__cxx03/stack>
0118 #else
0119 # include <__algorithm/ranges_copy.h>
0120 # include <__config>
0121 # include <__fwd/stack.h>
0122 # include <__iterator/back_insert_iterator.h>
0123 # include <__iterator/iterator_traits.h>
0124 # include <__memory/uses_allocator.h>
0125 # include <__ranges/access.h>
0126 # include <__ranges/concepts.h>
0127 # include <__ranges/container_compatible_range.h>
0128 # include <__ranges/from_range.h>
0129 # include <__type_traits/is_same.h>
0130 # include <__utility/forward.h>
0131 # include <deque>
0132 # include <version>
0133
0134 // standard-mandated includes
0135
0136 // [stack.syn]
0137 # include <compare>
0138 # include <initializer_list>
0139
0140 # if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0141 # pragma GCC system_header
0142 # endif
0143
0144 _LIBCPP_PUSH_MACROS
0145 # include <__undef_macros>
0146
0147 _LIBCPP_BEGIN_NAMESPACE_STD
0148
0149 template <class _Tp, class _Container>
0150 _LIBCPP_HIDE_FROM_ABI bool operator==(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y);
0151
0152 template <class _Tp, class _Container>
0153 _LIBCPP_HIDE_FROM_ABI bool operator<(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y);
0154
0155 template <class _Tp, class _Container /*= deque<_Tp>*/>
0156 class _LIBCPP_TEMPLATE_VIS stack {
0157 public:
0158 typedef _Container container_type;
0159 typedef typename container_type::value_type value_type;
0160 typedef typename container_type::reference reference;
0161 typedef typename container_type::const_reference const_reference;
0162 typedef typename container_type::size_type size_type;
0163 static_assert(is_same<_Tp, value_type>::value, "");
0164
0165 protected:
0166 container_type c;
0167
0168 public:
0169 _LIBCPP_HIDE_FROM_ABI stack() _NOEXCEPT_(is_nothrow_default_constructible<container_type>::value) : c() {}
0170
0171 _LIBCPP_HIDE_FROM_ABI stack(const stack& __q) : c(__q.c) {}
0172
0173 _LIBCPP_HIDE_FROM_ABI stack& operator=(const stack& __q) {
0174 c = __q.c;
0175 return *this;
0176 }
0177
0178 # ifndef _LIBCPP_CXX03_LANG
0179 _LIBCPP_HIDE_FROM_ABI stack(stack&& __q) noexcept(is_nothrow_move_constructible<container_type>::value)
0180 : c(std::move(__q.c)) {}
0181
0182 _LIBCPP_HIDE_FROM_ABI stack& operator=(stack&& __q) noexcept(is_nothrow_move_assignable<container_type>::value) {
0183 c = std::move(__q.c);
0184 return *this;
0185 }
0186
0187 _LIBCPP_HIDE_FROM_ABI explicit stack(container_type&& __c) : c(std::move(__c)) {}
0188 # endif // _LIBCPP_CXX03_LANG
0189
0190 _LIBCPP_HIDE_FROM_ABI explicit stack(const container_type& __c) : c(__c) {}
0191
0192 template <class _Alloc>
0193 _LIBCPP_HIDE_FROM_ABI explicit stack(const _Alloc& __a,
0194 __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
0195 : c(__a) {}
0196 template <class _Alloc>
0197 _LIBCPP_HIDE_FROM_ABI
0198 stack(const container_type& __c, const _Alloc& __a, __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
0199 : c(__c, __a) {}
0200 template <class _Alloc>
0201 _LIBCPP_HIDE_FROM_ABI
0202 stack(const stack& __s, const _Alloc& __a, __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
0203 : c(__s.c, __a) {}
0204 # ifndef _LIBCPP_CXX03_LANG
0205 template <class _Alloc>
0206 _LIBCPP_HIDE_FROM_ABI
0207 stack(container_type&& __c, const _Alloc& __a, __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
0208 : c(std::move(__c), __a) {}
0209 template <class _Alloc>
0210 _LIBCPP_HIDE_FROM_ABI
0211 stack(stack&& __s, const _Alloc& __a, __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
0212 : c(std::move(__s.c), __a) {}
0213 # endif // _LIBCPP_CXX03_LANG
0214
0215 # if _LIBCPP_STD_VER >= 23
0216 template <class _InputIterator, __enable_if_t<__has_input_iterator_category<_InputIterator>::value, int> = 0>
0217 _LIBCPP_HIDE_FROM_ABI stack(_InputIterator __first, _InputIterator __last) : c(__first, __last) {}
0218
0219 template <_ContainerCompatibleRange<_Tp> _Range>
0220 _LIBCPP_HIDE_FROM_ABI stack(from_range_t, _Range&& __range) : c(from_range, std::forward<_Range>(__range)) {}
0221
0222 template <class _InputIterator,
0223 class _Alloc,
0224 __enable_if_t<__has_input_iterator_category<_InputIterator>::value, int> = 0,
0225 __enable_if_t<uses_allocator<container_type, _Alloc>::value, int> = 0>
0226 _LIBCPP_HIDE_FROM_ABI stack(_InputIterator __first, _InputIterator __last, const _Alloc& __alloc)
0227 : c(__first, __last, __alloc) {}
0228
0229 template <_ContainerCompatibleRange<_Tp> _Range,
0230 class _Alloc,
0231 __enable_if_t<uses_allocator<container_type, _Alloc>::value, int> = 0>
0232 _LIBCPP_HIDE_FROM_ABI stack(from_range_t, _Range&& __range, const _Alloc& __alloc)
0233 : c(from_range, std::forward<_Range>(__range), __alloc) {}
0234
0235 # endif
0236
0237 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI bool empty() const { return c.empty(); }
0238 _LIBCPP_HIDE_FROM_ABI size_type size() const { return c.size(); }
0239 _LIBCPP_HIDE_FROM_ABI reference top() { return c.back(); }
0240 _LIBCPP_HIDE_FROM_ABI const_reference top() const { return c.back(); }
0241
0242 _LIBCPP_HIDE_FROM_ABI void push(const value_type& __v) { c.push_back(__v); }
0243 # ifndef _LIBCPP_CXX03_LANG
0244 _LIBCPP_HIDE_FROM_ABI void push(value_type&& __v) { c.push_back(std::move(__v)); }
0245
0246 # if _LIBCPP_STD_VER >= 23
0247 template <_ContainerCompatibleRange<_Tp> _Range>
0248 _LIBCPP_HIDE_FROM_ABI void push_range(_Range&& __range) {
0249 if constexpr (requires(container_type& __c) { __c.append_range(std::forward<_Range>(__range)); }) {
0250 c.append_range(std::forward<_Range>(__range));
0251 } else {
0252 ranges::copy(std::forward<_Range>(__range), std::back_inserter(c));
0253 }
0254 }
0255 # endif
0256
0257 template <class... _Args>
0258 _LIBCPP_HIDE_FROM_ABI
0259 # if _LIBCPP_STD_VER >= 17
0260 decltype(auto)
0261 emplace(_Args&&... __args) {
0262 return c.emplace_back(std::forward<_Args>(__args)...);
0263 }
0264 # else
0265 void
0266 emplace(_Args&&... __args) {
0267 c.emplace_back(std::forward<_Args>(__args)...);
0268 }
0269 # endif
0270 # endif // _LIBCPP_CXX03_LANG
0271
0272 _LIBCPP_HIDE_FROM_ABI void pop() { c.pop_back(); }
0273
0274 _LIBCPP_HIDE_FROM_ABI void swap(stack& __s) _NOEXCEPT_(__is_nothrow_swappable_v<container_type>) {
0275 using std::swap;
0276 swap(c, __s.c);
0277 }
0278
0279 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI const _Container& __get_container() const { return c; }
0280
0281 template <class _T1, class _OtherContainer>
0282 friend bool operator==(const stack<_T1, _OtherContainer>& __x, const stack<_T1, _OtherContainer>& __y);
0283
0284 template <class _T1, class _OtherContainer>
0285 friend bool operator<(const stack<_T1, _OtherContainer>& __x, const stack<_T1, _OtherContainer>& __y);
0286 };
0287
0288 # if _LIBCPP_STD_VER >= 17
0289 template <class _Container, class = enable_if_t<!__is_allocator<_Container>::value> >
0290 stack(_Container) -> stack<typename _Container::value_type, _Container>;
0291
0292 template <class _Container,
0293 class _Alloc,
0294 class = enable_if_t<!__is_allocator<_Container>::value>,
0295 class = enable_if_t<uses_allocator<_Container, _Alloc>::value> >
0296 stack(_Container, _Alloc) -> stack<typename _Container::value_type, _Container>;
0297 # endif
0298
0299 # if _LIBCPP_STD_VER >= 23
0300 template <class _InputIterator, __enable_if_t<__has_input_iterator_category<_InputIterator>::value, int> = 0>
0301 stack(_InputIterator, _InputIterator) -> stack<__iter_value_type<_InputIterator>>;
0302
0303 template <ranges::input_range _Range>
0304 stack(from_range_t, _Range&&) -> stack<ranges::range_value_t<_Range>>;
0305
0306 template <class _InputIterator,
0307 class _Alloc,
0308 __enable_if_t<__has_input_iterator_category<_InputIterator>::value, int> = 0,
0309 __enable_if_t<__is_allocator<_Alloc>::value, int> = 0>
0310 stack(_InputIterator,
0311 _InputIterator,
0312 _Alloc) -> stack<__iter_value_type<_InputIterator>, deque<__iter_value_type<_InputIterator>, _Alloc>>;
0313
0314 template <ranges::input_range _Range, class _Alloc, __enable_if_t<__is_allocator<_Alloc>::value, int> = 0>
0315 stack(from_range_t,
0316 _Range&&,
0317 _Alloc) -> stack<ranges::range_value_t<_Range>, deque<ranges::range_value_t<_Range>, _Alloc>>;
0318
0319 # endif
0320
0321 template <class _Tp, class _Container>
0322 inline _LIBCPP_HIDE_FROM_ABI bool operator==(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y) {
0323 return __x.c == __y.c;
0324 }
0325
0326 template <class _Tp, class _Container>
0327 inline _LIBCPP_HIDE_FROM_ABI bool operator<(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y) {
0328 return __x.c < __y.c;
0329 }
0330
0331 template <class _Tp, class _Container>
0332 inline _LIBCPP_HIDE_FROM_ABI bool operator!=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y) {
0333 return !(__x == __y);
0334 }
0335
0336 template <class _Tp, class _Container>
0337 inline _LIBCPP_HIDE_FROM_ABI bool operator>(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y) {
0338 return __y < __x;
0339 }
0340
0341 template <class _Tp, class _Container>
0342 inline _LIBCPP_HIDE_FROM_ABI bool operator>=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y) {
0343 return !(__x < __y);
0344 }
0345
0346 template <class _Tp, class _Container>
0347 inline _LIBCPP_HIDE_FROM_ABI bool operator<=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y) {
0348 return !(__y < __x);
0349 }
0350
0351 # if _LIBCPP_STD_VER >= 20
0352
0353 template <class _Tp, three_way_comparable _Container>
0354 _LIBCPP_HIDE_FROM_ABI compare_three_way_result_t<_Container>
0355 operator<=>(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y) {
0356 // clang 16 bug: declaring `friend operator<=>` causes "use of overloaded operator '*' is ambiguous" errors
0357 return __x.__get_container() <=> __y.__get_container();
0358 }
0359
0360 # endif
0361
0362 template <class _Tp, class _Container, __enable_if_t<__is_swappable_v<_Container>, int> = 0>
0363 inline _LIBCPP_HIDE_FROM_ABI void swap(stack<_Tp, _Container>& __x, stack<_Tp, _Container>& __y)
0364 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
0365 __x.swap(__y);
0366 }
0367
0368 template <class _Tp, class _Container, class _Alloc>
0369 struct _LIBCPP_TEMPLATE_VIS uses_allocator<stack<_Tp, _Container>, _Alloc> : public uses_allocator<_Container, _Alloc> {
0370 };
0371
0372 _LIBCPP_END_NAMESPACE_STD
0373
0374 _LIBCPP_POP_MACROS
0375
0376 # if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
0377 # include <concepts>
0378 # include <functional>
0379 # include <type_traits>
0380 # endif
0381 #endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
0382
0383 #endif // _LIBCPP_STACK
