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
|
// -*- C++ -*-
//===-------------------------- utility -----------------------------------===//
//
// 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_UTILITY
#define _LIBCPP_UTILITY
/*
utility synopsis
#include <initializer_list>
namespace std
{
template <class T>
void
swap(T& a, T& b);
namespace rel_ops
{
template<class T> bool operator!=(const T&, const T&);
template<class T> bool operator> (const T&, const T&);
template<class T> bool operator<=(const T&, const T&);
template<class T> bool operator>=(const T&, const T&);
}
template<class T>
void
swap(T& a, T& b) noexcept(is_nothrow_move_constructible<T>::value &&
is_nothrow_move_assignable<T>::value);
template <class T, size_t N>
void
swap(T (&a)[N], T (&b)[N]) noexcept(noexcept(swap(*a, *b)));
template <class T> T&& forward(typename remove_reference<T>::type& t) noexcept; // constexpr in C++14
template <class T> T&& forward(typename remove_reference<T>::type&& t) noexcept; // constexpr in C++14
template <class T> typename remove_reference<T>::type&& move(T&&) noexcept; // constexpr in C++14
template <class T>
typename conditional
<
!is_nothrow_move_constructible<T>::value && is_copy_constructible<T>::value,
const T&,
T&&
>::type
move_if_noexcept(T& x) noexcept; // constexpr in C++14
template <class T> constexpr add_const_t<T>& as_const(T& t) noexcept; // C++17
template <class T> void as_const(const T&&) = delete; // C++17
template <class T> typename add_rvalue_reference<T>::type declval() noexcept;
template<class T, class U> constexpr bool cmp_equal(T t, U u) noexcept; // C++20
template<class T, class U> constexpr bool cmp_not_equal(T t, U u) noexcept; // C++20
template<class T, class U> constexpr bool cmp_less(T t, U u) noexcept; // C++20
template<class T, class U> constexpr bool cmp_greater(T t, U u) noexcept; // C++20
template<class T, class U> constexpr bool cmp_less_equal(T t, U u) noexcept; // C++20
template<class T, class U> constexpr bool cmp_greater_equal(T t, U u) noexcept; // C++20
template<class R, class T> constexpr bool in_range(T t) noexcept; // C++20
template <class T1, class T2>
struct pair
{
typedef T1 first_type;
typedef T2 second_type;
T1 first;
T2 second;
pair(const pair&) = default;
pair(pair&&) = default;
explicit(see-below) constexpr pair();
explicit(see-below) pair(const T1& x, const T2& y); // constexpr in C++14
template <class U = T1, class V = T2> explicit(see-below) pair(U&&, V&&); // constexpr in C++14
template <class U, class V> explicit(see-below) pair(const pair<U, V>& p); // constexpr in C++14
template <class U, class V> explicit(see-below) pair(pair<U, V>&& p); // constexpr in C++14
template <class... Args1, class... Args2>
pair(piecewise_construct_t, tuple<Args1...> first_args,
tuple<Args2...> second_args); // constexpr in C++20
template <class U, class V> pair& operator=(const pair<U, V>& p); // constexpr in C++20
pair& operator=(pair&& p) noexcept(is_nothrow_move_assignable<T1>::value &&
is_nothrow_move_assignable<T2>::value); // constexpr in C++20
template <class U, class V> pair& operator=(pair<U, V>&& p); // constexpr in C++20
void swap(pair& p) noexcept(is_nothrow_swappable_v<T1> &&
is_nothrow_swappable_v<T2>); // constexpr in C++20
};
template <class T1, class T2> bool operator==(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14
template <class T1, class T2> bool operator!=(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2> bool operator< (const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2> bool operator> (const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2> bool operator>=(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2> bool operator<=(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2>
constexpr common_comparison_type_t<synth-three-way-result<T1>,
synth-three-way-result<T2>>
operator<=>(const pair<T1,T2>&, const pair<T1,T2>&); // C++20
template <class T1, class T2> pair<V1, V2> make_pair(T1&&, T2&&); // constexpr in C++14
template <class T1, class T2>
void
swap(pair<T1, T2>& x, pair<T1, T2>& y) noexcept(noexcept(x.swap(y))); // constexpr in C++20
struct piecewise_construct_t { explicit piecewise_construct_t() = default; };
inline constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t();
template <class T> struct tuple_size;
template <size_t I, class T> struct tuple_element;
template <class T1, class T2> struct tuple_size<pair<T1, T2> >;
template <class T1, class T2> struct tuple_element<0, pair<T1, T2> >;
template <class T1, class T2> struct tuple_element<1, pair<T1, T2> >;
template<size_t I, class T1, class T2>
typename tuple_element<I, pair<T1, T2> >::type&
get(pair<T1, T2>&) noexcept; // constexpr in C++14
template<size_t I, class T1, class T2>
const typename tuple_element<I, pair<T1, T2> >::type&
get(const pair<T1, T2>&) noexcept; // constexpr in C++14
template<size_t I, class T1, class T2>
typename tuple_element<I, pair<T1, T2> >::type&&
get(pair<T1, T2>&&) noexcept; // constexpr in C++14
template<size_t I, class T1, class T2>
const typename tuple_element<I, pair<T1, T2> >::type&&
get(const pair<T1, T2>&&) noexcept; // constexpr in C++14
template<class T1, class T2>
constexpr T1& get(pair<T1, T2>&) noexcept; // C++14
template<class T1, class T2>
constexpr const T1& get(const pair<T1, T2>&) noexcept; // C++14
template<class T1, class T2>
constexpr T1&& get(pair<T1, T2>&&) noexcept; // C++14
template<class T1, class T2>
constexpr const T1&& get(const pair<T1, T2>&&) noexcept; // C++14
template<class T1, class T2>
constexpr T1& get(pair<T2, T1>&) noexcept; // C++14
template<class T1, class T2>
constexpr const T1& get(const pair<T2, T1>&) noexcept; // C++14
template<class T1, class T2>
constexpr T1&& get(pair<T2, T1>&&) noexcept; // C++14
template<class T1, class T2>
constexpr const T1&& get(const pair<T2, T1>&&) noexcept; // C++14
// C++14
template<class T, T... I>
struct integer_sequence
{
typedef T value_type;
static constexpr size_t size() noexcept;
};
template<size_t... I>
using index_sequence = integer_sequence<size_t, I...>;
template<class T, T N>
using make_integer_sequence = integer_sequence<T, 0, 1, ..., N-1>;
template<size_t N>
using make_index_sequence = make_integer_sequence<size_t, N>;
template<class... T>
using index_sequence_for = make_index_sequence<sizeof...(T)>;
template<class T, class U=T>
constexpr T exchange(T& obj, U&& new_value)
noexcept(is_nothrow_move_constructible<T>::value && is_nothrow_assignable<T&, U>::value); // constexpr in C++17, noexcept in C++23
// 20.2.7, in-place construction // C++17
struct in_place_t {
explicit in_place_t() = default;
};
inline constexpr in_place_t in_place{};
template <class T>
struct in_place_type_t {
explicit in_place_type_t() = default;
};
template <class T>
inline constexpr in_place_type_t<T> in_place_type{};
template <size_t I>
struct in_place_index_t {
explicit in_place_index_t() = default;
};
template <size_t I>
inline constexpr in_place_index_t<I> in_place_index{};
// [utility.underlying], to_underlying
template <class T>
constexpr underlying_type_t<T> to_underlying( T value ) noexcept; // C++2b
} // std
*/
#include <__config>
#include <__debug>
#include <__tuple>
#include <__utility/as_const.h>
#include <__utility/cmp.h>
#include <__utility/declval.h>
#include <__utility/exchange.h>
#include <__utility/forward.h>
#include <__utility/in_place.h>
#include <__utility/integer_sequence.h>
#include <__utility/move.h>
#include <__utility/pair.h>
#include <__utility/piecewise_construct.h>
#include <__utility/rel_ops.h>
#include <__utility/swap.h>
#include <__utility/to_underlying.h>
#include <compare>
#include <initializer_list>
#include <version>
#endif // _LIBCPP_UTILITY
|
