1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP___CHRONO_YEAR_MONTH_WEEKDAY_H
11#define _LIBCPP___CHRONO_YEAR_MONTH_WEEKDAY_H
12
13#include <__chrono/calendar.h>
14#include <__chrono/day.h>
15#include <__chrono/duration.h>
16#include <__chrono/month.h>
17#include <__chrono/month_weekday.h>
18#include <__chrono/system_clock.h>
19#include <__chrono/time_point.h>
20#include <__chrono/weekday.h>
21#include <__chrono/year.h>
22#include <__chrono/year_month.h>
23#include <__chrono/year_month_day.h>
24#include <__config>
25
26#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
27# pragma GCC system_header
28#endif
29
30#if _LIBCPP_STD_VER >= 20
31
32_LIBCPP_BEGIN_NAMESPACE_STD
33
34namespace chrono {
35
36class year_month_weekday {
37 chrono::year __y_;
38 chrono::month __m_;
39 chrono::weekday_indexed __wdi_;
40
41public:
42 year_month_weekday() = default;
43 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday(
44 const chrono::year& __yval, const chrono::month& __mval, const chrono::weekday_indexed& __wdival) noexcept
45 : __y_{__yval}, __m_{__mval}, __wdi_{__wdival} {}
46 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday(const sys_days& __sysd) noexcept
47 : year_month_weekday(__from_days(d: __sysd.time_since_epoch())) {}
48 _LIBCPP_HIDE_FROM_ABI inline explicit constexpr year_month_weekday(const local_days& __locd) noexcept
49 : year_month_weekday(__from_days(d: __locd.time_since_epoch())) {}
50 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator+=(const months&) noexcept;
51 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator-=(const months&) noexcept;
52 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator+=(const years&) noexcept;
53 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator-=(const years&) noexcept;
54
55 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y_; }
56 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m_; }
57 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wdi_.weekday(); }
58 _LIBCPP_HIDE_FROM_ABI inline constexpr unsigned index() const noexcept { return __wdi_.index(); }
59 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi_; }
60
61 _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
62 _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept {
63 return local_days{__to_days()};
64 }
65 _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept {
66 if (!__y_.ok() || !__m_.ok() || !__wdi_.ok())
67 return false;
68 if (__wdi_.index() <= 4)
69 return true;
70 auto __nth_weekday_day =
71 __wdi_.weekday() - chrono::weekday{static_cast<sys_days>(__y_ / __m_ / 1)} + days{(__wdi_.index() - 1) * 7 + 1};
72 return static_cast<unsigned>(__nth_weekday_day.count()) <= static_cast<unsigned>((__y_ / __m_ / last).day());
73 }
74
75 _LIBCPP_HIDE_FROM_ABI static constexpr year_month_weekday __from_days(days __d) noexcept;
76 _LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
77};
78
79_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday year_month_weekday::__from_days(days __d) noexcept {
80 const sys_days __sysd{__d};
81 const chrono::weekday __wd = chrono::weekday(__sysd);
82 const year_month_day __ymd = year_month_day(__sysd);
83 return year_month_weekday{__ymd.year(), __ymd.month(), __wd[(static_cast<unsigned>(__ymd.day()) - 1) / 7 + 1]};
84}
85
86_LIBCPP_HIDE_FROM_ABI inline constexpr days year_month_weekday::__to_days() const noexcept {
87 const sys_days __sysd = sys_days(__y_ / __m_ / 1);
88 return (__sysd + (__wdi_.weekday() - chrono::weekday(__sysd) + days{(__wdi_.index() - 1) * 7})).time_since_epoch();
89}
90
91_LIBCPP_HIDE_FROM_ABI inline constexpr bool
92operator==(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept {
93 return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() &&
94 __lhs.weekday_indexed() == __rhs.weekday_indexed();
95}
96
97_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday
98operator/(const year_month& __lhs, const weekday_indexed& __rhs) noexcept {
99 return year_month_weekday{__lhs.year(), __lhs.month(), __rhs};
100}
101
102_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday
103operator/(const year& __lhs, const month_weekday& __rhs) noexcept {
104 return year_month_weekday{__lhs, __rhs.month(), __rhs.weekday_indexed()};
105}
106
107_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday operator/(int __lhs, const month_weekday& __rhs) noexcept {
108 return year(__lhs) / __rhs;
109}
110
111_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday
112operator/(const month_weekday& __lhs, const year& __rhs) noexcept {
113 return __rhs / __lhs;
114}
115
116_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday operator/(const month_weekday& __lhs, int __rhs) noexcept {
117 return year(__rhs) / __lhs;
118}
119
120_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday
121operator+(const year_month_weekday& __lhs, const months& __rhs) noexcept {
122 return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_indexed();
123}
124
125_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday
126operator+(const months& __lhs, const year_month_weekday& __rhs) noexcept {
127 return __rhs + __lhs;
128}
129
130_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday
131operator-(const year_month_weekday& __lhs, const months& __rhs) noexcept {
132 return __lhs + (-__rhs);
133}
134
135_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday
136operator+(const year_month_weekday& __lhs, const years& __rhs) noexcept {
137 return year_month_weekday{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_indexed()};
138}
139
140_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday
141operator+(const years& __lhs, const year_month_weekday& __rhs) noexcept {
142 return __rhs + __lhs;
143}
144
145_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday
146operator-(const year_month_weekday& __lhs, const years& __rhs) noexcept {
147 return __lhs + (-__rhs);
148}
149
150_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator+=(const months& __dm) noexcept {
151 *this = *this + __dm;
152 return *this;
153}
154_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator-=(const months& __dm) noexcept {
155 *this = *this - __dm;
156 return *this;
157}
158_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator+=(const years& __dy) noexcept {
159 *this = *this + __dy;
160 return *this;
161}
162_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator-=(const years& __dy) noexcept {
163 *this = *this - __dy;
164 return *this;
165}
166
167class year_month_weekday_last {
168private:
169 chrono::year __y_;
170 chrono::month __m_;
171 chrono::weekday_last __wdl_;
172
173public:
174 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last(
175 const chrono::year& __yval, const chrono::month& __mval, const chrono::weekday_last& __wdlval) noexcept
176 : __y_{__yval}, __m_{__mval}, __wdl_{__wdlval} {}
177 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator+=(const months& __dm) noexcept;
178 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator-=(const months& __dm) noexcept;
179 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator+=(const years& __dy) noexcept;
180 _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator-=(const years& __dy) noexcept;
181
182 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y_; }
183 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m_; }
184 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wdl_.weekday(); }
185 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl_; }
186 _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
187 _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept {
188 return local_days{__to_days()};
189 }
190 _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __y_.ok() && __m_.ok() && __wdl_.ok(); }
191
192 _LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
193};
194
195_LIBCPP_HIDE_FROM_ABI inline constexpr days year_month_weekday_last::__to_days() const noexcept {
196 const sys_days __last = sys_days{__y_ / __m_ / last};
197 return (__last - (chrono::weekday{__last} - __wdl_.weekday())).time_since_epoch();
198}
199
200_LIBCPP_HIDE_FROM_ABI inline constexpr bool
201operator==(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept {
202 return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last();
203}
204
205_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
206operator/(const year_month& __lhs, const weekday_last& __rhs) noexcept {
207 return year_month_weekday_last{__lhs.year(), __lhs.month(), __rhs};
208}
209
210_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
211operator/(const year& __lhs, const month_weekday_last& __rhs) noexcept {
212 return year_month_weekday_last{__lhs, __rhs.month(), __rhs.weekday_last()};
213}
214
215_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
216operator/(int __lhs, const month_weekday_last& __rhs) noexcept {
217 return year(__lhs) / __rhs;
218}
219
220_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
221operator/(const month_weekday_last& __lhs, const year& __rhs) noexcept {
222 return __rhs / __lhs;
223}
224
225_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
226operator/(const month_weekday_last& __lhs, int __rhs) noexcept {
227 return year(__rhs) / __lhs;
228}
229
230_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
231operator+(const year_month_weekday_last& __lhs, const months& __rhs) noexcept {
232 return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_last();
233}
234
235_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
236operator+(const months& __lhs, const year_month_weekday_last& __rhs) noexcept {
237 return __rhs + __lhs;
238}
239
240_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
241operator-(const year_month_weekday_last& __lhs, const months& __rhs) noexcept {
242 return __lhs + (-__rhs);
243}
244
245_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
246operator+(const year_month_weekday_last& __lhs, const years& __rhs) noexcept {
247 return year_month_weekday_last{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_last()};
248}
249
250_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
251operator+(const years& __lhs, const year_month_weekday_last& __rhs) noexcept {
252 return __rhs + __lhs;
253}
254
255_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last
256operator-(const year_month_weekday_last& __lhs, const years& __rhs) noexcept {
257 return __lhs + (-__rhs);
258}
259
260_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last&
261year_month_weekday_last::operator+=(const months& __dm) noexcept {
262 *this = *this + __dm;
263 return *this;
264}
265_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last&
266year_month_weekday_last::operator-=(const months& __dm) noexcept {
267 *this = *this - __dm;
268 return *this;
269}
270_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last&
271year_month_weekday_last::operator+=(const years& __dy) noexcept {
272 *this = *this + __dy;
273 return *this;
274}
275_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last&
276year_month_weekday_last::operator-=(const years& __dy) noexcept {
277 *this = *this - __dy;
278 return *this;
279}
280
281} // namespace chrono
282
283_LIBCPP_END_NAMESPACE_STD
284
285#endif // _LIBCPP_STD_VER >= 20
286
287#endif // _LIBCPP___CHRONO_YEAR_MONTH_WEEKDAY_H
288