xref: /freebsd/contrib/llvm-project/libcxx/include/__chrono/monthday.h (revision 81ad626541db97eb356e2c1d4a20eb2a26a766ab) 
1*81ad6265SDimitry Andric // -*- C++ -*-
2*81ad6265SDimitry Andric //===----------------------------------------------------------------------===//
3*81ad6265SDimitry Andric //
4*81ad6265SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5*81ad6265SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
6*81ad6265SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7*81ad6265SDimitry Andric //
8*81ad6265SDimitry Andric //===----------------------------------------------------------------------===//
9*81ad6265SDimitry Andric 
10*81ad6265SDimitry Andric #ifndef _LIBCPP___CHRONO_MONTHDAY_H
11*81ad6265SDimitry Andric #define _LIBCPP___CHRONO_MONTHDAY_H
12*81ad6265SDimitry Andric 
13*81ad6265SDimitry Andric #include <__chrono/calendar.h>
14*81ad6265SDimitry Andric #include <__chrono/day.h>
15*81ad6265SDimitry Andric #include <__chrono/month.h>
16*81ad6265SDimitry Andric #include <__config>
17*81ad6265SDimitry Andric 
18*81ad6265SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
19*81ad6265SDimitry Andric #  pragma GCC system_header
20*81ad6265SDimitry Andric #endif
21*81ad6265SDimitry Andric 
22*81ad6265SDimitry Andric #if _LIBCPP_STD_VER > 17
23*81ad6265SDimitry Andric 
24*81ad6265SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD
25*81ad6265SDimitry Andric 
26*81ad6265SDimitry Andric namespace chrono
27*81ad6265SDimitry Andric {
28*81ad6265SDimitry Andric 
29*81ad6265SDimitry Andric class month_day {
30*81ad6265SDimitry Andric private:
31*81ad6265SDimitry Andric    chrono::month __m;
32*81ad6265SDimitry Andric    chrono::day   __d;
33*81ad6265SDimitry Andric public:
34*81ad6265SDimitry Andric     _LIBCPP_HIDE_FROM_ABI month_day() = default;
35*81ad6265SDimitry Andric     _LIBCPP_HIDE_FROM_ABI constexpr month_day(const chrono::month& __mval, const chrono::day& __dval) noexcept
36*81ad6265SDimitry Andric         : __m{__mval}, __d{__dval} {}
37*81ad6265SDimitry Andric     _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
38*81ad6265SDimitry Andric     _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::day   day()   const noexcept { return __d; }
39*81ad6265SDimitry Andric     _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;
40*81ad6265SDimitry Andric };
41*81ad6265SDimitry Andric 
42*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
43*81ad6265SDimitry Andric bool month_day::ok() const noexcept
44*81ad6265SDimitry Andric {
45*81ad6265SDimitry Andric     if (!__m.ok()) return false;
46*81ad6265SDimitry Andric     const unsigned __dval = static_cast<unsigned>(__d);
47*81ad6265SDimitry Andric     if (__dval < 1 || __dval > 31) return false;
48*81ad6265SDimitry Andric     if (__dval <= 29) return true;
49*81ad6265SDimitry Andric //  Now we've got either 30 or 31
50*81ad6265SDimitry Andric     const unsigned __mval = static_cast<unsigned>(__m);
51*81ad6265SDimitry Andric     if (__mval == 2) return false;
52*81ad6265SDimitry Andric     if (__mval == 4 || __mval == 6 || __mval == 9 || __mval == 11)
53*81ad6265SDimitry Andric         return __dval == 30;
54*81ad6265SDimitry Andric     return true;
55*81ad6265SDimitry Andric }
56*81ad6265SDimitry Andric 
57*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
58*81ad6265SDimitry Andric bool operator==(const month_day& __lhs, const month_day& __rhs) noexcept
59*81ad6265SDimitry Andric { return __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); }
60*81ad6265SDimitry Andric 
61*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
62*81ad6265SDimitry Andric bool operator!=(const month_day& __lhs, const month_day& __rhs) noexcept
63*81ad6265SDimitry Andric { return !(__lhs == __rhs); }
64*81ad6265SDimitry Andric 
65*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
66*81ad6265SDimitry Andric month_day operator/(const month& __lhs, const day& __rhs) noexcept
67*81ad6265SDimitry Andric { return month_day{__lhs, __rhs}; }
68*81ad6265SDimitry Andric 
69*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr
70*81ad6265SDimitry Andric month_day operator/(const day& __lhs, const month& __rhs) noexcept
71*81ad6265SDimitry Andric { return __rhs / __lhs; }
72*81ad6265SDimitry Andric 
73*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
74*81ad6265SDimitry Andric month_day operator/(const month& __lhs, int __rhs) noexcept
75*81ad6265SDimitry Andric { return __lhs / day(__rhs); }
76*81ad6265SDimitry Andric 
77*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr
78*81ad6265SDimitry Andric month_day operator/(int __lhs, const day& __rhs) noexcept
79*81ad6265SDimitry Andric { return month(__lhs) / __rhs; }
80*81ad6265SDimitry Andric 
81*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr
82*81ad6265SDimitry Andric month_day operator/(const day& __lhs, int __rhs) noexcept
83*81ad6265SDimitry Andric { return month(__rhs) / __lhs; }
84*81ad6265SDimitry Andric 
85*81ad6265SDimitry Andric 
86*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
87*81ad6265SDimitry Andric bool operator< (const month_day& __lhs, const month_day& __rhs) noexcept
88*81ad6265SDimitry Andric { return __lhs.month() != __rhs.month() ? __lhs.month() < __rhs.month() : __lhs.day() < __rhs.day(); }
89*81ad6265SDimitry Andric 
90*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
91*81ad6265SDimitry Andric bool operator> (const month_day& __lhs, const month_day& __rhs) noexcept
92*81ad6265SDimitry Andric { return __rhs < __lhs; }
93*81ad6265SDimitry Andric 
94*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
95*81ad6265SDimitry Andric bool operator<=(const month_day& __lhs, const month_day& __rhs) noexcept
96*81ad6265SDimitry Andric { return !(__rhs < __lhs);}
97*81ad6265SDimitry Andric 
98*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
99*81ad6265SDimitry Andric bool operator>=(const month_day& __lhs, const month_day& __rhs) noexcept
100*81ad6265SDimitry Andric { return !(__lhs < __rhs); }
101*81ad6265SDimitry Andric 
102*81ad6265SDimitry Andric 
103*81ad6265SDimitry Andric 
104*81ad6265SDimitry Andric class month_day_last {
105*81ad6265SDimitry Andric private:
106*81ad6265SDimitry Andric     chrono::month __m;
107*81ad6265SDimitry Andric public:
108*81ad6265SDimitry Andric     _LIBCPP_HIDE_FROM_ABI explicit constexpr month_day_last(const chrono::month& __val) noexcept
109*81ad6265SDimitry Andric         : __m{__val} {}
110*81ad6265SDimitry Andric     _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
111*81ad6265SDimitry Andric     _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m.ok(); }
112*81ad6265SDimitry Andric };
113*81ad6265SDimitry Andric 
114*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
115*81ad6265SDimitry Andric bool operator==(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
116*81ad6265SDimitry Andric { return __lhs.month() == __rhs.month(); }
117*81ad6265SDimitry Andric 
118*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
119*81ad6265SDimitry Andric bool operator!=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
120*81ad6265SDimitry Andric { return !(__lhs == __rhs); }
121*81ad6265SDimitry Andric 
122*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
123*81ad6265SDimitry Andric bool operator< (const month_day_last& __lhs, const month_day_last& __rhs) noexcept
124*81ad6265SDimitry Andric { return __lhs.month() < __rhs.month(); }
125*81ad6265SDimitry Andric 
126*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
127*81ad6265SDimitry Andric bool operator> (const month_day_last& __lhs, const month_day_last& __rhs) noexcept
128*81ad6265SDimitry Andric { return __rhs < __lhs; }
129*81ad6265SDimitry Andric 
130*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
131*81ad6265SDimitry Andric bool operator<=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
132*81ad6265SDimitry Andric { return !(__rhs < __lhs);}
133*81ad6265SDimitry Andric 
134*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
135*81ad6265SDimitry Andric bool operator>=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
136*81ad6265SDimitry Andric { return !(__lhs < __rhs); }
137*81ad6265SDimitry Andric 
138*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
139*81ad6265SDimitry Andric month_day_last operator/(const month& __lhs, last_spec) noexcept
140*81ad6265SDimitry Andric { return month_day_last{__lhs}; }
141*81ad6265SDimitry Andric 
142*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
143*81ad6265SDimitry Andric month_day_last operator/(last_spec, const month& __rhs) noexcept
144*81ad6265SDimitry Andric { return month_day_last{__rhs}; }
145*81ad6265SDimitry Andric 
146*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
147*81ad6265SDimitry Andric month_day_last operator/(int __lhs, last_spec) noexcept
148*81ad6265SDimitry Andric { return month_day_last{month(__lhs)}; }
149*81ad6265SDimitry Andric 
150*81ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr
151*81ad6265SDimitry Andric month_day_last operator/(last_spec, int __rhs) noexcept
152*81ad6265SDimitry Andric { return month_day_last{month(__rhs)}; }
153*81ad6265SDimitry Andric 
154*81ad6265SDimitry Andric } // namespace chrono
155*81ad6265SDimitry Andric 
156*81ad6265SDimitry Andric _LIBCPP_END_NAMESPACE_STD
157*81ad6265SDimitry Andric 
158*81ad6265SDimitry Andric #endif // _LIBCPP_STD_VER > 17
159*81ad6265SDimitry Andric 
160*81ad6265SDimitry Andric #endif // _LIBCPP___CHRONO_MONTHDAY_H
161