aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/cxxsupp/libcxx/include/stack
blob: 87d85c440a201bec678de82c1753c19ca2bfc30e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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_STACK
#define _LIBCPP_STACK

/*
    stack synopsis

namespace std
{

template <class T, class Container = deque<T>>
class stack
{
public:
    typedef Container                                container_type;
    typedef typename container_type::value_type      value_type;
    typedef typename container_type::reference       reference;
    typedef typename container_type::const_reference const_reference;
    typedef typename container_type::size_type       size_type;

protected:
    container_type c;

public:
    stack() = default;
    ~stack() = default;

    stack(const stack& q) = default;
    stack(stack&& q) = default;

    stack& operator=(const stack& q) = default;
    stack& operator=(stack&& q) = default;

    explicit stack(const container_type& c);
    explicit stack(container_type&& c);
    template <class InputIterator> stack(InputIterator first, InputIterator last); // since C++23
    template <class Alloc> explicit stack(const Alloc& a);
    template <class Alloc> stack(const container_type& c, const Alloc& a);
    template <class Alloc> stack(container_type&& c, const Alloc& a);
    template <class Alloc> stack(const stack& c, const Alloc& a);
    template <class Alloc> stack(stack&& c, const Alloc& a);
    template<class InputIterator, class Alloc>
    stack(InputIterator first, InputIterator last, const Alloc&); // since C++23

    bool empty() const;
    size_type size() const;
    reference top();
    const_reference top() const;

    void push(const value_type& x);
    void push(value_type&& x);
    template <class... Args> reference emplace(Args&&... args); // reference in C++17
    void pop();

    void swap(stack& c) noexcept(is_nothrow_swappable_v<Container>)
};

template<class Container>
  stack(Container) -> stack<typename Container::value_type, Container>;  // C++17

template<class InputIterator>
  stack(InputIterator, InputIterator) -> stack<iter-value-type<InputIterator>>; // since C++23

template<class Container, class Allocator>
  stack(Container, Allocator) -> stack<typename Container::value_type, Container>; // C++17

template<class InputIterator, class Allocator>
  stack(InputIterator, InputIterator, Allocator)
    -> stack<iter-value-type<InputIterator>,
             deque<iter-value-type<InputIterator>, Allocator>>; // since C++23

template <class T, class Container>
  bool operator==(const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
  bool operator< (const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
  bool operator!=(const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
  bool operator> (const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
  bool operator>=(const stack<T, Container>& x, const stack<T, Container>& y);
template <class T, class Container>
  bool operator<=(const stack<T, Container>& x, const stack<T, Container>& y);

template <class T, class Container>
  void swap(stack<T, Container>& x, stack<T, Container>& y)
  noexcept(noexcept(x.swap(y)));

}  // std

*/

#include <__config>
#include <__iterator/iterator_traits.h>
#include <__memory/uses_allocator.h>
#include <__utility/forward.h>
#include <deque>
#include <type_traits>
#include <version>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

template <class _Tp, class _Container = deque<_Tp> > class _LIBCPP_TEMPLATE_VIS stack;

template <class _Tp, class _Container>
_LIBCPP_INLINE_VISIBILITY
bool
operator==(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y);

template <class _Tp, class _Container>
_LIBCPP_INLINE_VISIBILITY
bool
operator< (const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y);

template <class _Tp, class _Container /*= deque<_Tp>*/>
class _LIBCPP_TEMPLATE_VIS stack
{
public:
    typedef _Container                               container_type;
    typedef typename container_type::value_type      value_type;
    typedef typename container_type::reference       reference;
    typedef typename container_type::const_reference const_reference;
    typedef typename container_type::size_type       size_type;
    static_assert((is_same<_Tp, value_type>::value), "" );

protected:
    container_type c;

public:
    _LIBCPP_INLINE_VISIBILITY
    stack()
        _NOEXCEPT_(is_nothrow_default_constructible<container_type>::value)
        : c() {}

    _LIBCPP_INLINE_VISIBILITY
    stack(const stack& __q) : c(__q.c) {}

    _LIBCPP_INLINE_VISIBILITY
    stack& operator=(const stack& __q) {c = __q.c; return *this;}


#ifndef _LIBCPP_CXX03_LANG
    _LIBCPP_INLINE_VISIBILITY
    stack(stack&& __q)
        _NOEXCEPT_(is_nothrow_move_constructible<container_type>::value)
        : c(_VSTD::move(__q.c)) {}

    _LIBCPP_INLINE_VISIBILITY
    stack& operator=(stack&& __q)
        _NOEXCEPT_(is_nothrow_move_assignable<container_type>::value)
        {c = _VSTD::move(__q.c); return *this;}

    _LIBCPP_INLINE_VISIBILITY
    explicit stack(container_type&& __c) : c(_VSTD::move(__c)) {}
#endif // _LIBCPP_CXX03_LANG

    _LIBCPP_INLINE_VISIBILITY
    explicit stack(const container_type& __c) : c(__c) {}

    template <class _Alloc>
        _LIBCPP_INLINE_VISIBILITY
        explicit stack(const _Alloc& __a,
                       __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
            : c(__a) {}
    template <class _Alloc>
        _LIBCPP_INLINE_VISIBILITY
        stack(const container_type& __c, const _Alloc& __a,
              __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
            : c(__c, __a) {}
    template <class _Alloc>
        _LIBCPP_INLINE_VISIBILITY
        stack(const stack& __s, const _Alloc& __a,
              __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
            : c(__s.c, __a) {}
#ifndef _LIBCPP_CXX03_LANG
    template <class _Alloc>
        _LIBCPP_INLINE_VISIBILITY
        stack(container_type&& __c, const _Alloc& __a,
              __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
            : c(_VSTD::move(__c), __a) {}
    template <class _Alloc>
        _LIBCPP_INLINE_VISIBILITY
        stack(stack&& __s, const _Alloc& __a,
              __enable_if_t<uses_allocator<container_type, _Alloc>::value>* = 0)
            : c(_VSTD::move(__s.c), __a) {}
#endif // _LIBCPP_CXX03_LANG

#if _LIBCPP_STD_VER > 20
    template <class _InputIterator,
              class = __enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value>>
    _LIBCPP_HIDE_FROM_ABI
    stack(_InputIterator __first, _InputIterator __last) : c(__first, __last) {}

    template <class _InputIterator,
              class _Alloc,
              class = __enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value>,
              class = __enable_if_t<uses_allocator<container_type, _Alloc>::value>>
    _LIBCPP_HIDE_FROM_ABI
    stack(_InputIterator __first, _InputIterator __last, const _Alloc& __alloc) : c(__first, __last, __alloc) {}
#endif

    _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
    bool empty()     const      {return c.empty();}
    _LIBCPP_INLINE_VISIBILITY
    size_type size() const      {return c.size();}
    _LIBCPP_INLINE_VISIBILITY
    reference top()             {return c.back();}
    _LIBCPP_INLINE_VISIBILITY
    const_reference top() const {return c.back();}

    _LIBCPP_INLINE_VISIBILITY
    void push(const value_type& __v) {c.push_back(__v);}
#ifndef _LIBCPP_CXX03_LANG
    _LIBCPP_INLINE_VISIBILITY
    void push(value_type&& __v) {c.push_back(_VSTD::move(__v));}

    template <class... _Args>
        _LIBCPP_INLINE_VISIBILITY
#if _LIBCPP_STD_VER > 14
        decltype(auto) emplace(_Args&&... __args)
        { return c.emplace_back(_VSTD::forward<_Args>(__args)...);}
#else
        void      emplace(_Args&&... __args)
        {        c.emplace_back(_VSTD::forward<_Args>(__args)...);}
#endif
#endif // _LIBCPP_CXX03_LANG

    _LIBCPP_INLINE_VISIBILITY
    void pop() {c.pop_back();}

    _LIBCPP_INLINE_VISIBILITY
    void swap(stack& __s)
        _NOEXCEPT_(__is_nothrow_swappable<container_type>::value)
    {
        using _VSTD::swap;
        swap(c, __s.c);
    }

    template <class T1, class _C1>
    friend
    bool
    operator==(const stack<T1, _C1>& __x, const stack<T1, _C1>& __y);

    template <class T1, class _C1>
    friend
    bool
    operator< (const stack<T1, _C1>& __x, const stack<T1, _C1>& __y);
};

#if _LIBCPP_STD_VER > 14
template<class _Container,
         class = enable_if_t<!__is_allocator<_Container>::value>
>
stack(_Container)
    -> stack<typename _Container::value_type, _Container>;

template<class _Container,
         class _Alloc,
         class = enable_if_t<!__is_allocator<_Container>::value>,
         class = enable_if_t<uses_allocator<_Container, _Alloc>::value>
         >
stack(_Container, _Alloc)
    -> stack<typename _Container::value_type, _Container>;
#endif

#if _LIBCPP_STD_VER > 20
template<class _InputIterator,
         class = __enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value>>
stack(_InputIterator, _InputIterator)
    -> stack<__iter_value_type<_InputIterator>>;

template<class _InputIterator,
         class _Alloc,
         class = __enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value>,
         class = __enable_if_t<__is_allocator<_Alloc>::value>>
stack(_InputIterator, _InputIterator, _Alloc)
    -> stack<__iter_value_type<_InputIterator>, deque<__iter_value_type<_InputIterator>, _Alloc>>;
#endif

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
    return __x.c == __y.c;
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator< (const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
    return __x.c < __y.c;
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
    return !(__x == __y);
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator> (const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
    return __y < __x;
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
    return !(__x < __y);
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const stack<_Tp, _Container>& __x, const stack<_Tp, _Container>& __y)
{
    return !(__y < __x);
}

template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
__enable_if_t<__is_swappable<_Container>::value, void>
swap(stack<_Tp, _Container>& __x, stack<_Tp, _Container>& __y)
    _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
{
    __x.swap(__y);
}

template <class _Tp, class _Container, class _Alloc>
struct _LIBCPP_TEMPLATE_VIS uses_allocator<stack<_Tp, _Container>, _Alloc>
    : public uses_allocator<_Container, _Alloc>
{
};

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP_STACK