forked from OSchip/llvm-project
256 lines
12 KiB
C++
256 lines
12 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___CHRONO_YEAR_MONTH_WEEKDAY_H
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#define _LIBCPP___CHRONO_YEAR_MONTH_WEEKDAY_H
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#include <__chrono/calendar.h>
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#include <__chrono/day.h>
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#include <__chrono/duration.h>
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#include <__chrono/month.h>
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#include <__chrono/month_weekday.h>
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#include <__chrono/system_clock.h>
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#include <__chrono/time_point.h>
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#include <__chrono/weekday.h>
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#include <__chrono/year.h>
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#include <__chrono/year_month.h>
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#include <__chrono/year_month_day.h>
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#include <__config>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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#if _LIBCPP_STD_VER > 17
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_LIBCPP_BEGIN_NAMESPACE_STD
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namespace chrono
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{
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class year_month_weekday {
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chrono::year __y;
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chrono::month __m;
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chrono::weekday_indexed __wdi;
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public:
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_LIBCPP_HIDE_FROM_ABI year_month_weekday() = default;
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday(const chrono::year& __yval, const chrono::month& __mval,
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const chrono::weekday_indexed& __wdival) noexcept
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: __y{__yval}, __m{__mval}, __wdi{__wdival} {}
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday(const sys_days& __sysd) noexcept
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: year_month_weekday(__from_days(__sysd.time_since_epoch())) {}
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_LIBCPP_HIDE_FROM_ABI inline explicit constexpr year_month_weekday(const local_days& __locd) noexcept
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: year_month_weekday(__from_days(__locd.time_since_epoch())) {}
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator+=(const months& m) noexcept;
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator-=(const months& m) noexcept;
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator+=(const years& y) noexcept;
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator-=(const years& y) noexcept;
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wdi.weekday(); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr unsigned index() const noexcept { return __wdi.index(); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
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_LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept
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{
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if (!__y.ok() || !__m.ok() || !__wdi.ok()) return false;
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if (__wdi.index() <= 4) return true;
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auto __nth_weekday_day =
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__wdi.weekday() -
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chrono::weekday{static_cast<sys_days>(__y / __m / 1)} +
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days{(__wdi.index() - 1) * 7 + 1};
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return static_cast<unsigned>(__nth_weekday_day.count()) <=
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static_cast<unsigned>((__y / __m / last).day());
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}
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_LIBCPP_HIDE_FROM_ABI static constexpr year_month_weekday __from_days(days __d) noexcept;
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_LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
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};
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday year_month_weekday::__from_days(days __d) noexcept
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{
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const sys_days __sysd{__d};
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const chrono::weekday __wd = chrono::weekday(__sysd);
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const year_month_day __ymd = year_month_day(__sysd);
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return year_month_weekday{__ymd.year(), __ymd.month(),
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__wd[(static_cast<unsigned>(__ymd.day())-1)/7+1]};
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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days year_month_weekday::__to_days() const noexcept
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{
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const sys_days __sysd = sys_days(__y/__m/1);
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return (__sysd + (__wdi.weekday() - chrono::weekday(__sysd) + days{(__wdi.index()-1)*7}))
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.time_since_epoch();
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator==(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept
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{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator!=(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept
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{ return !(__lhs == __rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator/(const year_month& __lhs, const weekday_indexed& __rhs) noexcept
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{ return year_month_weekday{__lhs.year(), __lhs.month(), __rhs}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator/(const year& __lhs, const month_weekday& __rhs) noexcept
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{ return year_month_weekday{__lhs, __rhs.month(), __rhs.weekday_indexed()}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator/(int __lhs, const month_weekday& __rhs) noexcept
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{ return year(__lhs) / __rhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator/(const month_weekday& __lhs, const year& __rhs) noexcept
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{ return __rhs / __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator/(const month_weekday& __lhs, int __rhs) noexcept
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{ return year(__rhs) / __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator+(const year_month_weekday& __lhs, const months& __rhs) noexcept
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{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_indexed(); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator+(const months& __lhs, const year_month_weekday& __rhs) noexcept
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{ return __rhs + __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator-(const year_month_weekday& __lhs, const months& __rhs) noexcept
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{ return __lhs + (-__rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator+(const year_month_weekday& __lhs, const years& __rhs) noexcept
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{ return year_month_weekday{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_indexed()}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator+(const years& __lhs, const year_month_weekday& __rhs) noexcept
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{ return __rhs + __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday operator-(const year_month_weekday& __lhs, const years& __rhs) noexcept
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{ return __lhs + (-__rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
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class year_month_weekday_last {
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private:
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chrono::year __y;
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chrono::month __m;
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chrono::weekday_last __wdl;
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public:
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last(const chrono::year& __yval, const chrono::month& __mval,
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const chrono::weekday_last& __wdlval) noexcept
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: __y{__yval}, __m{__mval}, __wdl{__wdlval} {}
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator+=(const months& __dm) noexcept;
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator-=(const months& __dm) noexcept;
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator+=(const years& __dy) noexcept;
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_LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator-=(const years& __dy) noexcept;
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wdl.weekday(); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
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_LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok() && __wdl.ok(); }
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_LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
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};
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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days year_month_weekday_last::__to_days() const noexcept
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{
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const sys_days __last = sys_days{__y/__m/last};
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return (__last - (chrono::weekday{__last} - __wdl.weekday())).time_since_epoch();
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator==(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept
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{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator!=(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept
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{ return !(__lhs == __rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator/(const year_month& __lhs, const weekday_last& __rhs) noexcept
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{ return year_month_weekday_last{__lhs.year(), __lhs.month(), __rhs}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator/(const year& __lhs, const month_weekday_last& __rhs) noexcept
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{ return year_month_weekday_last{__lhs, __rhs.month(), __rhs.weekday_last()}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator/(int __lhs, const month_weekday_last& __rhs) noexcept
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{ return year(__lhs) / __rhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator/(const month_weekday_last& __lhs, const year& __rhs) noexcept
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{ return __rhs / __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator/(const month_weekday_last& __lhs, int __rhs) noexcept
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{ return year(__rhs) / __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const months& __rhs) noexcept
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{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_last(); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator+(const months& __lhs, const year_month_weekday_last& __rhs) noexcept
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{ return __rhs + __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const months& __rhs) noexcept
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{ return __lhs + (-__rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const years& __rhs) noexcept
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{ return year_month_weekday_last{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_last()}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator+(const years& __lhs, const year_month_weekday_last& __rhs) noexcept
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{ return __rhs + __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const years& __rhs) noexcept
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{ return __lhs + (-__rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
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} // namespace chrono
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER > 17
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#endif // _LIBCPP___CHRONO_YEAR_MONTH_WEEKDAY_H
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