http://git-wip-us.apache.org/repos/asf/nifi-minifi-cpp/blob/8777ab5f/thirdparty/date/include/date/iso_week.h
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diff --git a/thirdparty/date/include/date/iso_week.h
b/thirdparty/date/include/date/iso_week.h
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+#ifndef ISO_WEEK_H
+#define ISO_WEEK_H
+
+// The MIT License (MIT)
+//
+// Copyright (c) 2015, 2016, 2017 Howard Hinnant
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE
+// SOFTWARE.
+
+#include "date.h"
+
+#include <climits>
+
+namespace iso_week
+{
+
+// y/wn/wd
+// wn/wd/y
+// wd/wn/y
+
+using days = date::days;
+using weeks = date::weeks;
+using years = date::years;
+
+// time_point
+
+using sys_days = date::sys_days;
+using local_days = date::local_days;
+
+// types
+
+struct last_week
+{
+ explicit last_week() = default;
+};
+
+class weekday;
+class weeknum;
+class year;
+
+class year_weeknum;
+class year_lastweek;
+class weeknum_weekday;
+class lastweek_weekday;
+
+class year_weeknum_weekday;
+class year_lastweek_weekday;
+
+// date composition operators
+
+CONSTCD11 year_weeknum operator/(const year& y, const weeknum& wn) NOEXCEPT;
+CONSTCD11 year_weeknum operator/(const year& y, int wn) NOEXCEPT;
+
+CONSTCD11 year_lastweek operator/(const year& y, last_week wn) NOEXCEPT;
+
+CONSTCD11 weeknum_weekday operator/(const weeknum& wn, const weekday& wd)
NOEXCEPT;
+CONSTCD11 weeknum_weekday operator/(const weeknum& wn, int wd)
NOEXCEPT;
+CONSTCD11 weeknum_weekday operator/(const weekday& wd, const weeknum& wn)
NOEXCEPT;
+CONSTCD11 weeknum_weekday operator/(const weekday& wd, int wn)
NOEXCEPT;
+
+CONSTCD11 lastweek_weekday operator/(const last_week& wn, const weekday& wd)
NOEXCEPT;
+CONSTCD11 lastweek_weekday operator/(const last_week& wn, int wd)
NOEXCEPT;
+CONSTCD11 lastweek_weekday operator/(const weekday& wd, const last_week& wn)
NOEXCEPT;
+
+CONSTCD11 year_weeknum_weekday operator/(const year_weeknum& ywn, const
weekday& wd) NOEXCEPT;
+CONSTCD11 year_weeknum_weekday operator/(const year_weeknum& ywn, int
wd) NOEXCEPT;
+CONSTCD11 year_weeknum_weekday operator/(const weeknum_weekday& wnwd, const
year& y) NOEXCEPT;
+CONSTCD11 year_weeknum_weekday operator/(const weeknum_weekday& wnwd, int
y) NOEXCEPT;
+
+CONSTCD11 year_lastweek_weekday operator/(const year_lastweek& ylw, const
weekday& wd) NOEXCEPT;
+CONSTCD11 year_lastweek_weekday operator/(const year_lastweek& ylw, int
wd) NOEXCEPT;
+
+CONSTCD11 year_lastweek_weekday operator/(const lastweek_weekday& lwwd, const
year& y) NOEXCEPT;
+CONSTCD11 year_lastweek_weekday operator/(const lastweek_weekday& lwwd, int
y) NOEXCEPT;
+
+// weekday
+
+class weekday
+{
+ unsigned char wd_;
+public:
+ explicit CONSTCD11 weekday(unsigned wd) NOEXCEPT;
+ CONSTCD11 weekday(date::weekday wd) NOEXCEPT;
+ explicit weekday(int) = delete;
+ CONSTCD11 weekday(const sys_days& dp) NOEXCEPT;
+ CONSTCD11 explicit weekday(const local_days& dp) NOEXCEPT;
+
+ weekday& operator++() NOEXCEPT;
+ weekday operator++(int) NOEXCEPT;
+ weekday& operator--() NOEXCEPT;
+ weekday operator--(int) NOEXCEPT;
+
+ weekday& operator+=(const days& d) NOEXCEPT;
+ weekday& operator-=(const days& d) NOEXCEPT;
+
+ CONSTCD11 explicit operator unsigned() const NOEXCEPT;
+ CONSTCD11 operator date::weekday() const NOEXCEPT;
+ CONSTCD11 bool ok() const NOEXCEPT;
+
+private:
+ static CONSTCD11 unsigned char weekday_from_days(int z) NOEXCEPT;
+ static CONSTCD11 unsigned char to_iso_encoding(unsigned char) NOEXCEPT;
+ static CONSTCD11 unsigned from_iso_encoding(unsigned) NOEXCEPT;
+};
+
+CONSTCD11 bool operator==(const weekday& x, const weekday& y) NOEXCEPT;
+CONSTCD11 bool operator!=(const weekday& x, const weekday& y) NOEXCEPT;
+
+CONSTCD14 weekday operator+(const weekday& x, const days& y) NOEXCEPT;
+CONSTCD14 weekday operator+(const days& x, const weekday& y) NOEXCEPT;
+CONSTCD14 weekday operator-(const weekday& x, const days& y) NOEXCEPT;
+CONSTCD14 days operator-(const weekday& x, const weekday& y) NOEXCEPT;
+
+template<class CharT, class Traits>
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const weekday& wd);
+
+// year
+
+class year
+{
+ short y_;
+
+public:
+ explicit CONSTCD11 year(int y) NOEXCEPT;
+
+ year& operator++() NOEXCEPT;
+ year operator++(int) NOEXCEPT;
+ year& operator--() NOEXCEPT;
+ year operator--(int) NOEXCEPT;
+
+ year& operator+=(const years& y) NOEXCEPT;
+ year& operator-=(const years& y) NOEXCEPT;
+
+ CONSTCD11 explicit operator int() const NOEXCEPT;
+ CONSTCD11 bool ok() const NOEXCEPT;
+
+ static CONSTCD11 year min() NOEXCEPT;
+ static CONSTCD11 year max() NOEXCEPT;
+};
+
+CONSTCD11 bool operator==(const year& x, const year& y) NOEXCEPT;
+CONSTCD11 bool operator!=(const year& x, const year& y) NOEXCEPT;
+CONSTCD11 bool operator< (const year& x, const year& y) NOEXCEPT;
+CONSTCD11 bool operator> (const year& x, const year& y) NOEXCEPT;
+CONSTCD11 bool operator<=(const year& x, const year& y) NOEXCEPT;
+CONSTCD11 bool operator>=(const year& x, const year& y) NOEXCEPT;
+
+CONSTCD11 year operator+(const year& x, const years& y) NOEXCEPT;
+CONSTCD11 year operator+(const years& x, const year& y) NOEXCEPT;
+CONSTCD11 year operator-(const year& x, const years& y) NOEXCEPT;
+CONSTCD11 years operator-(const year& x, const year& y) NOEXCEPT;
+
+template<class CharT, class Traits>
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year& y);
+
+// weeknum
+
+class weeknum
+{
+ unsigned char wn_;
+
+public:
+ explicit CONSTCD11 weeknum(unsigned wn) NOEXCEPT;
+
+ weeknum& operator++() NOEXCEPT;
+ weeknum operator++(int) NOEXCEPT;
+ weeknum& operator--() NOEXCEPT;
+ weeknum operator--(int) NOEXCEPT;
+
+ weeknum& operator+=(const weeks& y) NOEXCEPT;
+ weeknum& operator-=(const weeks& y) NOEXCEPT;
+
+ CONSTCD11 explicit operator unsigned() const NOEXCEPT;
+ CONSTCD11 bool ok() const NOEXCEPT;
+};
+
+CONSTCD11 bool operator==(const weeknum& x, const weeknum& y) NOEXCEPT;
+CONSTCD11 bool operator!=(const weeknum& x, const weeknum& y) NOEXCEPT;
+CONSTCD11 bool operator< (const weeknum& x, const weeknum& y) NOEXCEPT;
+CONSTCD11 bool operator> (const weeknum& x, const weeknum& y) NOEXCEPT;
+CONSTCD11 bool operator<=(const weeknum& x, const weeknum& y) NOEXCEPT;
+CONSTCD11 bool operator>=(const weeknum& x, const weeknum& y) NOEXCEPT;
+
+CONSTCD11 weeknum operator+(const weeknum& x, const weeks& y) NOEXCEPT;
+CONSTCD11 weeknum operator+(const weeks& x, const weeknum& y) NOEXCEPT;
+CONSTCD11 weeknum operator-(const weeknum& x, const weeks& y) NOEXCEPT;
+CONSTCD11 weeks operator-(const weeknum& x, const weeknum& y) NOEXCEPT;
+
+template<class CharT, class Traits>
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const weeknum& wn);
+
+// year_weeknum
+
+class year_weeknum
+{
+ iso_week::year y_;
+ iso_week::weeknum wn_;
+
+public:
+ CONSTCD11 year_weeknum(const iso_week::year& y, const iso_week::weeknum&
wn) NOEXCEPT;
+
+ CONSTCD11 iso_week::year year() const NOEXCEPT;
+ CONSTCD11 iso_week::weeknum weeknum() const NOEXCEPT;
+
+ year_weeknum& operator+=(const years& dy) NOEXCEPT;
+ year_weeknum& operator-=(const years& dy) NOEXCEPT;
+
+ CONSTCD11 bool ok() const NOEXCEPT;
+};
+
+CONSTCD11 bool operator==(const year_weeknum& x, const year_weeknum& y)
NOEXCEPT;
+CONSTCD11 bool operator!=(const year_weeknum& x, const year_weeknum& y)
NOEXCEPT;
+CONSTCD11 bool operator< (const year_weeknum& x, const year_weeknum& y)
NOEXCEPT;
+CONSTCD11 bool operator> (const year_weeknum& x, const year_weeknum& y)
NOEXCEPT;
+CONSTCD11 bool operator<=(const year_weeknum& x, const year_weeknum& y)
NOEXCEPT;
+CONSTCD11 bool operator>=(const year_weeknum& x, const year_weeknum& y)
NOEXCEPT;
+
+CONSTCD11 year_weeknum operator+(const year_weeknum& ym, const years& dy)
NOEXCEPT;
+CONSTCD11 year_weeknum operator+(const years& dy, const year_weeknum& ym)
NOEXCEPT;
+CONSTCD11 year_weeknum operator-(const year_weeknum& ym, const years& dy)
NOEXCEPT;
+
+template<class CharT, class Traits>
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year_weeknum& ym);
+
+// year_lastweek
+
+class year_lastweek
+{
+ iso_week::year y_;
+
+public:
+ CONSTCD11 explicit year_lastweek(const iso_week::year& y) NOEXCEPT;
+
+ CONSTCD11 iso_week::year year() const NOEXCEPT;
+ CONSTCD14 iso_week::weeknum weeknum() const NOEXCEPT;
+
+ year_lastweek& operator+=(const years& dy) NOEXCEPT;
+ year_lastweek& operator-=(const years& dy) NOEXCEPT;
+
+ CONSTCD11 bool ok() const NOEXCEPT;
+};
+
+CONSTCD11 bool operator==(const year_lastweek& x, const year_lastweek& y)
NOEXCEPT;
+CONSTCD11 bool operator!=(const year_lastweek& x, const year_lastweek& y)
NOEXCEPT;
+CONSTCD11 bool operator< (const year_lastweek& x, const year_lastweek& y)
NOEXCEPT;
+CONSTCD11 bool operator> (const year_lastweek& x, const year_lastweek& y)
NOEXCEPT;
+CONSTCD11 bool operator<=(const year_lastweek& x, const year_lastweek& y)
NOEXCEPT;
+CONSTCD11 bool operator>=(const year_lastweek& x, const year_lastweek& y)
NOEXCEPT;
+
+CONSTCD11 year_lastweek operator+(const year_lastweek& ym, const years& dy)
NOEXCEPT;
+CONSTCD11 year_lastweek operator+(const years& dy, const year_lastweek& ym)
NOEXCEPT;
+CONSTCD11 year_lastweek operator-(const year_lastweek& ym, const years& dy)
NOEXCEPT;
+
+template<class CharT, class Traits>
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year_lastweek& ym);
+
+// weeknum_weekday
+
+class weeknum_weekday
+{
+ iso_week::weeknum wn_;
+ iso_week::weekday wd_;
+
+public:
+ CONSTCD11 weeknum_weekday(const iso_week::weeknum& wn,
+ const iso_week::weekday& wd) NOEXCEPT;
+
+ CONSTCD11 iso_week::weeknum weeknum() const NOEXCEPT;
+ CONSTCD11 iso_week::weekday weekday() const NOEXCEPT;
+
+ CONSTCD14 bool ok() const NOEXCEPT;
+};
+
+CONSTCD11 bool operator==(const weeknum_weekday& x, const weeknum_weekday& y)
NOEXCEPT;
+CONSTCD11 bool operator!=(const weeknum_weekday& x, const weeknum_weekday& y)
NOEXCEPT;
+CONSTCD11 bool operator< (const weeknum_weekday& x, const weeknum_weekday& y)
NOEXCEPT;
+CONSTCD11 bool operator> (const weeknum_weekday& x, const weeknum_weekday& y)
NOEXCEPT;
+CONSTCD11 bool operator<=(const weeknum_weekday& x, const weeknum_weekday& y)
NOEXCEPT;
+CONSTCD11 bool operator>=(const weeknum_weekday& x, const weeknum_weekday& y)
NOEXCEPT;
+
+template<class CharT, class Traits>
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const weeknum_weekday& md);
+
+// lastweek_weekday
+
+class lastweek_weekday
+{
+ iso_week::weekday wd_;
+
+public:
+ CONSTCD11 explicit lastweek_weekday(const iso_week::weekday& wd) NOEXCEPT;
+
+ CONSTCD11 iso_week::weekday weekday() const NOEXCEPT;
+
+ CONSTCD14 bool ok() const NOEXCEPT;
+};
+
+CONSTCD11 bool operator==(const lastweek_weekday& x, const lastweek_weekday&
y) NOEXCEPT;
+CONSTCD11 bool operator!=(const lastweek_weekday& x, const lastweek_weekday&
y) NOEXCEPT;
+CONSTCD11 bool operator< (const lastweek_weekday& x, const lastweek_weekday&
y) NOEXCEPT;
+CONSTCD11 bool operator> (const lastweek_weekday& x, const lastweek_weekday&
y) NOEXCEPT;
+CONSTCD11 bool operator<=(const lastweek_weekday& x, const lastweek_weekday&
y) NOEXCEPT;
+CONSTCD11 bool operator>=(const lastweek_weekday& x, const lastweek_weekday&
y) NOEXCEPT;
+
+template<class CharT, class Traits>
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const lastweek_weekday& md);
+
+// year_lastweek_weekday
+
+class year_lastweek_weekday
+{
+ iso_week::year y_;
+ iso_week::weekday wd_;
+
+public:
+ CONSTCD11 year_lastweek_weekday(const iso_week::year& y,
+ const iso_week::weekday& wd) NOEXCEPT;
+
+ year_lastweek_weekday& operator+=(const years& y) NOEXCEPT;
+ year_lastweek_weekday& operator-=(const years& y) NOEXCEPT;
+
+ CONSTCD11 iso_week::year year() const NOEXCEPT;
+ CONSTCD14 iso_week::weeknum weeknum() const NOEXCEPT;
+ CONSTCD11 iso_week::weekday weekday() const NOEXCEPT;
+
+ CONSTCD14 operator sys_days() const NOEXCEPT;
+ CONSTCD14 explicit operator local_days() const NOEXCEPT;
+ CONSTCD11 bool ok() const NOEXCEPT;
+};
+
+CONSTCD11 bool operator==(const year_lastweek_weekday& x, const
year_lastweek_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator!=(const year_lastweek_weekday& x, const
year_lastweek_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator< (const year_lastweek_weekday& x, const
year_lastweek_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator> (const year_lastweek_weekday& x, const
year_lastweek_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator<=(const year_lastweek_weekday& x, const
year_lastweek_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator>=(const year_lastweek_weekday& x, const
year_lastweek_weekday& y) NOEXCEPT;
+
+CONSTCD11 year_lastweek_weekday operator+(const year_lastweek_weekday& ywnwd,
const years& y) NOEXCEPT;
+CONSTCD11 year_lastweek_weekday operator+(const years& y, const
year_lastweek_weekday& ywnwd) NOEXCEPT;
+CONSTCD11 year_lastweek_weekday operator-(const year_lastweek_weekday& ywnwd,
const years& y) NOEXCEPT;
+
+template<class CharT, class Traits>
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year_lastweek_weekday&
ywnwd);
+
+// class year_weeknum_weekday
+
+class year_weeknum_weekday
+{
+ iso_week::year y_;
+ iso_week::weeknum wn_;
+ iso_week::weekday wd_;
+
+public:
+ CONSTCD11 year_weeknum_weekday(const iso_week::year& y, const
iso_week::weeknum& wn,
+ const iso_week::weekday& wd) NOEXCEPT;
+ CONSTCD14 year_weeknum_weekday(const year_lastweek_weekday& ylwwd)
NOEXCEPT;
+ CONSTCD14 year_weeknum_weekday(const sys_days& dp) NOEXCEPT;
+ CONSTCD14 explicit year_weeknum_weekday(const local_days& dp) NOEXCEPT;
+
+ year_weeknum_weekday& operator+=(const years& y) NOEXCEPT;
+ year_weeknum_weekday& operator-=(const years& y) NOEXCEPT;
+
+ CONSTCD11 iso_week::year year() const NOEXCEPT;
+ CONSTCD11 iso_week::weeknum weeknum() const NOEXCEPT;
+ CONSTCD11 iso_week::weekday weekday() const NOEXCEPT;
+
+ CONSTCD14 operator sys_days() const NOEXCEPT;
+ CONSTCD14 explicit operator local_days() const NOEXCEPT;
+ CONSTCD14 bool ok() const NOEXCEPT;
+
+private:
+ static CONSTCD14 year_weeknum_weekday from_days(days dp) NOEXCEPT;
+};
+
+CONSTCD11 bool operator==(const year_weeknum_weekday& x, const
year_weeknum_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator!=(const year_weeknum_weekday& x, const
year_weeknum_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator< (const year_weeknum_weekday& x, const
year_weeknum_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator> (const year_weeknum_weekday& x, const
year_weeknum_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator<=(const year_weeknum_weekday& x, const
year_weeknum_weekday& y) NOEXCEPT;
+CONSTCD11 bool operator>=(const year_weeknum_weekday& x, const
year_weeknum_weekday& y) NOEXCEPT;
+
+CONSTCD11 year_weeknum_weekday operator+(const year_weeknum_weekday& ywnwd,
const years& y) NOEXCEPT;
+CONSTCD11 year_weeknum_weekday operator+(const years& y, const
year_weeknum_weekday& ywnwd) NOEXCEPT;
+CONSTCD11 year_weeknum_weekday operator-(const year_weeknum_weekday& ywnwd,
const years& y) NOEXCEPT;
+
+template<class CharT, class Traits>
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year_weeknum_weekday&
ywnwd);
+
+//----------------+
+// Implementation |
+//----------------+
+
+// weekday
+
+CONSTCD11
+inline
+unsigned char
+weekday::to_iso_encoding(unsigned char z) NOEXCEPT
+{
+ return z != 0 ? z : (unsigned char)7;
+}
+
+CONSTCD11
+inline
+unsigned
+weekday::from_iso_encoding(unsigned z) NOEXCEPT
+{
+ return z != 7 ? z : 0u;
+}
+
+CONSTCD11
+inline
+unsigned char
+weekday::weekday_from_days(int z) NOEXCEPT
+{
+ return to_iso_encoding(static_cast<unsigned char>(static_cast<unsigned>(
+ z >= -4 ? (z+4) % 7 : (z+5) % 7 + 6)));
+}
+
+CONSTCD11
+inline
+weekday::weekday(unsigned wd) NOEXCEPT
+ : wd_(static_cast<decltype(wd_)>(wd))
+ {}
+
+CONSTCD11
+inline
+weekday::weekday(date::weekday wd) NOEXCEPT
+ : wd_(to_iso_encoding(static_cast<unsigned>(wd)))
+ {}
+
+CONSTCD11
+inline
+weekday::weekday(const sys_days& dp) NOEXCEPT
+ : wd_(weekday_from_days(dp.time_since_epoch().count()))
+ {}
+
+CONSTCD11
+inline
+weekday::weekday(const local_days& dp) NOEXCEPT
+ : wd_(weekday_from_days(dp.time_since_epoch().count()))
+ {}
+
+inline weekday& weekday::operator++() NOEXCEPT {if (++wd_ == 8) wd_ = 1;
return *this;}
+inline weekday weekday::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this);
return tmp;}
+inline weekday& weekday::operator--() NOEXCEPT {if (wd_-- == 1) wd_ = 7;
return *this;}
+inline weekday weekday::operator--(int) NOEXCEPT {auto tmp(*this); --(*this);
return tmp;}
+
+inline
+weekday&
+weekday::operator+=(const days& d) NOEXCEPT
+{
+ *this = *this + d;
+ return *this;
+}
+
+inline
+weekday&
+weekday::operator-=(const days& d) NOEXCEPT
+{
+ *this = *this - d;
+ return *this;
+}
+
+CONSTCD11
+inline
+weekday::operator unsigned() const NOEXCEPT
+{
+ return wd_;
+}
+
+CONSTCD11
+inline
+weekday::operator date::weekday() const NOEXCEPT
+{
+ return date::weekday{from_iso_encoding(unsigned{wd_})};
+}
+
+CONSTCD11 inline bool weekday::ok() const NOEXCEPT {return 1 <= wd_ && wd_ <=
7;}
+
+CONSTCD11
+inline
+bool
+operator==(const weekday& x, const weekday& y) NOEXCEPT
+{
+ return static_cast<unsigned>(x) == static_cast<unsigned>(y);
+}
+
+CONSTCD11
+inline
+bool
+operator!=(const weekday& x, const weekday& y) NOEXCEPT
+{
+ return !(x == y);
+}
+
+CONSTCD14
+inline
+days
+operator-(const weekday& x, const weekday& y) NOEXCEPT
+{
+ auto const diff = static_cast<unsigned>(x) - static_cast<unsigned>(y);
+ return days{diff <= 6 ? diff : diff + 7};
+}
+
+CONSTCD14
+inline
+weekday
+operator+(const weekday& x, const days& y) NOEXCEPT
+{
+ auto const wdu = static_cast<long long>(static_cast<unsigned>(x) - 1u) +
y.count();
+ auto const wk = (wdu >= 0 ? wdu : wdu-6) / 7;
+ return weekday{static_cast<unsigned>(wdu - wk * 7) + 1u};
+}
+
+CONSTCD14
+inline
+weekday
+operator+(const days& x, const weekday& y) NOEXCEPT
+{
+ return y + x;
+}
+
+CONSTCD14
+inline
+weekday
+operator-(const weekday& x, const days& y) NOEXCEPT
+{
+ return x + -y;
+}
+
+template<class CharT, class Traits>
+inline
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const weekday& wd)
+{
+ switch (static_cast<unsigned>(wd))
+ {
+ case 7:
+ os << "Sun";
+ break;
+ case 1:
+ os << "Mon";
+ break;
+ case 2:
+ os << "Tue";
+ break;
+ case 3:
+ os << "Wed";
+ break;
+ case 4:
+ os << "Thu";
+ break;
+ case 5:
+ os << "Fri";
+ break;
+ case 6:
+ os << "Sat";
+ break;
+ default:
+ os << static_cast<unsigned>(wd) << " is not a valid weekday";
+ break;
+ }
+ return os;
+}
+
+// year
+
+CONSTCD11 inline year::year(int y) NOEXCEPT : y_(static_cast<decltype(y_)>(y))
{}
+inline year& year::operator++() NOEXCEPT {++y_; return *this;}
+inline year year::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return
tmp;}
+inline year& year::operator--() NOEXCEPT {--y_; return *this;}
+inline year year::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return
tmp;}
+inline year& year::operator+=(const years& y) NOEXCEPT {*this = *this + y;
return *this;}
+inline year& year::operator-=(const years& y) NOEXCEPT {*this = *this - y;
return *this;}
+
+CONSTCD11 inline year::operator int() const NOEXCEPT {return y_;}
+CONSTCD11 inline bool year::ok() const NOEXCEPT {return min() <= *this &&
*this <= max();}
+
+CONSTCD11
+inline
+year
+year::min() NOEXCEPT
+{
+ using namespace std::chrono;
+ static_assert(sizeof(seconds)*CHAR_BIT >= 41, "seconds may overflow");
+ static_assert(sizeof(hours)*CHAR_BIT >= 30, "hours may overflow");
+ return sizeof(minutes)*CHAR_BIT < 34 ?
+ year{1970} + duration_cast<years>(minutes::min()) :
+ year{std::numeric_limits<short>::min()};
+}
+
+CONSTCD11
+inline
+year
+year::max() NOEXCEPT
+{
+ using namespace std::chrono;
+ static_assert(sizeof(seconds)*CHAR_BIT >= 41, "seconds may overflow");
+ static_assert(sizeof(hours)*CHAR_BIT >= 30, "hours may overflow");
+ return sizeof(minutes)*CHAR_BIT < 34 ?
+ year{1969} + duration_cast<years>(minutes::max()) :
+ year{std::numeric_limits<short>::max()};
+}
+
+CONSTCD11
+inline
+bool
+operator==(const year& x, const year& y) NOEXCEPT
+{
+ return static_cast<int>(x) == static_cast<int>(y);
+}
+
+CONSTCD11
+inline
+bool
+operator!=(const year& x, const year& y) NOEXCEPT
+{
+ return !(x == y);
+}
+
+CONSTCD11
+inline
+bool
+operator<(const year& x, const year& y) NOEXCEPT
+{
+ return static_cast<int>(x) < static_cast<int>(y);
+}
+
+CONSTCD11
+inline
+bool
+operator>(const year& x, const year& y) NOEXCEPT
+{
+ return y < x;
+}
+
+CONSTCD11
+inline
+bool
+operator<=(const year& x, const year& y) NOEXCEPT
+{
+ return !(y < x);
+}
+
+CONSTCD11
+inline
+bool
+operator>=(const year& x, const year& y) NOEXCEPT
+{
+ return !(x < y);
+}
+
+CONSTCD11
+inline
+years
+operator-(const year& x, const year& y) NOEXCEPT
+{
+ return years{static_cast<int>(x) - static_cast<int>(y)};
+}
+
+CONSTCD11
+inline
+year
+operator+(const year& x, const years& y) NOEXCEPT
+{
+ return year{static_cast<int>(x) + y.count()};
+}
+
+CONSTCD11
+inline
+year
+operator+(const years& x, const year& y) NOEXCEPT
+{
+ return y + x;
+}
+
+CONSTCD11
+inline
+year
+operator-(const year& x, const years& y) NOEXCEPT
+{
+ return year{static_cast<int>(x) - y.count()};
+}
+
+template<class CharT, class Traits>
+inline
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year& y)
+{
+ date::detail::save_stream<CharT, Traits> _(os);
+ os.fill('0');
+ os.flags(std::ios::dec | std::ios::internal);
+ os.width(4 + (y < year{0}));
+ os << static_cast<int>(y);
+ return os;
+}
+
+#if !defined(_MSC_VER) || (_MSC_VER >= 1900)
+inline namespace literals
+{
+
+CONSTCD11
+inline
+iso_week::year
+operator "" _y(unsigned long long y) NOEXCEPT
+{
+ return iso_week::year(static_cast<int>(y));
+}
+
+CONSTCD11
+inline
+iso_week::weeknum
+operator "" _w(unsigned long long wn) NOEXCEPT
+{
+ return iso_week::weeknum(static_cast<unsigned>(wn));
+}
+
+#endif // !defined(_MSC_VER) || (_MSC_VER >= 1900)
+
+CONSTDATA iso_week::last_week last{};
+
+CONSTDATA iso_week::weekday sun{7u};
+CONSTDATA iso_week::weekday mon{1u};
+CONSTDATA iso_week::weekday tue{2u};
+CONSTDATA iso_week::weekday wed{3u};
+CONSTDATA iso_week::weekday thu{4u};
+CONSTDATA iso_week::weekday fri{5u};
+CONSTDATA iso_week::weekday sat{6u};
+
+#if !defined(_MSC_VER) || (_MSC_VER >= 1900)
+} // inline namespace literals
+#endif
+
+// weeknum
+
+CONSTCD11
+inline
+weeknum::weeknum(unsigned wn) NOEXCEPT
+ : wn_(static_cast<decltype(wn_)>(wn))
+ {}
+
+inline weeknum& weeknum::operator++() NOEXCEPT {++wn_; return *this;}
+inline weeknum weeknum::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this);
return tmp;}
+inline weeknum& weeknum::operator--() NOEXCEPT {--wn_; return *this;}
+inline weeknum weeknum::operator--(int) NOEXCEPT {auto tmp(*this); --(*this);
return tmp;}
+
+inline
+weeknum&
+weeknum::operator+=(const weeks& y) NOEXCEPT
+{
+ *this = *this + y;
+ return *this;
+}
+
+inline
+weeknum&
+weeknum::operator-=(const weeks& y) NOEXCEPT
+{
+ *this = *this - y;
+ return *this;
+}
+
+CONSTCD11 inline weeknum::operator unsigned() const NOEXCEPT {return wn_;}
+CONSTCD11 inline bool weeknum::ok() const NOEXCEPT {return 1 <= wn_ && wn_ <=
53;}
+
+CONSTCD11
+inline
+bool
+operator==(const weeknum& x, const weeknum& y) NOEXCEPT
+{
+ return static_cast<unsigned>(x) == static_cast<unsigned>(y);
+}
+
+CONSTCD11
+inline
+bool
+operator!=(const weeknum& x, const weeknum& y) NOEXCEPT
+{
+ return !(x == y);
+}
+
+CONSTCD11
+inline
+bool
+operator<(const weeknum& x, const weeknum& y) NOEXCEPT
+{
+ return static_cast<unsigned>(x) < static_cast<unsigned>(y);
+}
+
+CONSTCD11
+inline
+bool
+operator>(const weeknum& x, const weeknum& y) NOEXCEPT
+{
+ return y < x;
+}
+
+CONSTCD11
+inline
+bool
+operator<=(const weeknum& x, const weeknum& y) NOEXCEPT
+{
+ return !(y < x);
+}
+
+CONSTCD11
+inline
+bool
+operator>=(const weeknum& x, const weeknum& y) NOEXCEPT
+{
+ return !(x < y);
+}
+
+CONSTCD11
+inline
+weeks
+operator-(const weeknum& x, const weeknum& y) NOEXCEPT
+{
+ return weeks{static_cast<weeks::rep>(static_cast<unsigned>(x)) -
+ static_cast<weeks::rep>(static_cast<unsigned>(y))};
+}
+
+CONSTCD11
+inline
+weeknum
+operator+(const weeknum& x, const weeks& y) NOEXCEPT
+{
+ return weeknum{static_cast<unsigned>(x) +
static_cast<unsigned>(y.count())};
+}
+
+CONSTCD11
+inline
+weeknum
+operator+(const weeks& x, const weeknum& y) NOEXCEPT
+{
+ return y + x;
+}
+
+CONSTCD11
+inline
+weeknum
+operator-(const weeknum& x, const weeks& y) NOEXCEPT
+{
+ return x + -y;
+}
+
+template<class CharT, class Traits>
+inline
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const weeknum& wn)
+{
+ date::detail::save_stream<CharT, Traits> _(os);
+ os << 'W';
+ os.fill('0');
+ os.flags(std::ios::dec | std::ios::right);
+ os.width(2);
+ os << static_cast<unsigned>(wn);
+ return os;
+}
+
+// year_weeknum
+
+CONSTCD11
+inline
+year_weeknum::year_weeknum(const iso_week::year& y, const iso_week::weeknum&
wn) NOEXCEPT
+ : y_(y)
+ , wn_(wn)
+ {}
+
+CONSTCD11 inline year year_weeknum::year() const NOEXCEPT {return y_;}
+CONSTCD11 inline weeknum year_weeknum::weeknum() const NOEXCEPT {return wn_;}
+CONSTCD11 inline bool year_weeknum::ok() const NOEXCEPT
+{
+ return y_.ok() && 1u <= static_cast<unsigned>(wn_) && wn_ <=
(y_/last).weeknum();
+}
+
+inline
+year_weeknum&
+year_weeknum::operator+=(const years& dy) NOEXCEPT
+{
+ *this = *this + dy;
+ return *this;
+}
+
+inline
+year_weeknum&
+year_weeknum::operator-=(const years& dy) NOEXCEPT
+{
+ *this = *this - dy;
+ return *this;
+}
+
+CONSTCD11
+inline
+bool
+operator==(const year_weeknum& x, const year_weeknum& y) NOEXCEPT
+{
+ return x.year() == y.year() && x.weeknum() == y.weeknum();
+}
+
+CONSTCD11
+inline
+bool
+operator!=(const year_weeknum& x, const year_weeknum& y) NOEXCEPT
+{
+ return !(x == y);
+}
+
+CONSTCD11
+inline
+bool
+operator<(const year_weeknum& x, const year_weeknum& y) NOEXCEPT
+{
+ return x.year() < y.year() ? true
+ : (x.year() > y.year() ? false
+ : (x.weeknum() < y.weeknum()));
+}
+
+CONSTCD11
+inline
+bool
+operator>(const year_weeknum& x, const year_weeknum& y) NOEXCEPT
+{
+ return y < x;
+}
+
+CONSTCD11
+inline
+bool
+operator<=(const year_weeknum& x, const year_weeknum& y) NOEXCEPT
+{
+ return !(y < x);
+}
+
+CONSTCD11
+inline
+bool
+operator>=(const year_weeknum& x, const year_weeknum& y) NOEXCEPT
+{
+ return !(x < y);
+}
+
+CONSTCD11
+inline
+year_weeknum
+operator+(const year_weeknum& ym, const years& dy) NOEXCEPT
+{
+ return (ym.year() + dy) / ym.weeknum();
+}
+
+CONSTCD11
+inline
+year_weeknum
+operator+(const years& dy, const year_weeknum& ym) NOEXCEPT
+{
+ return ym + dy;
+}
+
+CONSTCD11
+inline
+year_weeknum
+operator-(const year_weeknum& ym, const years& dy) NOEXCEPT
+{
+ return ym + -dy;
+}
+
+template<class CharT, class Traits>
+inline
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year_weeknum& ywn)
+{
+ return os << ywn.year() << '-' << ywn.weeknum();
+}
+
+
+// year_lastweek
+
+CONSTCD11
+inline
+year_lastweek::year_lastweek(const iso_week::year& y) NOEXCEPT
+ : y_(y)
+ {}
+
+CONSTCD11 inline year year_lastweek::year() const NOEXCEPT {return y_;}
+
+CONSTCD14
+inline
+weeknum
+year_lastweek::weeknum() const NOEXCEPT
+{
+ const auto y = date::year{static_cast<int>(y_)};
+ const auto s0 = sys_days((y-years{1})/12/date::thu[date::last]);
+ const auto s1 = sys_days(y/12/date::thu[date::last]);
+ return
iso_week::weeknum(static_cast<unsigned>(date::trunc<weeks>(s1-s0).count()));
+}
+
+CONSTCD11 inline bool year_lastweek::ok() const NOEXCEPT {return y_.ok();}
+
+inline
+year_lastweek&
+year_lastweek::operator+=(const years& dy) NOEXCEPT
+{
+ *this = *this + dy;
+ return *this;
+}
+
+inline
+year_lastweek&
+year_lastweek::operator-=(const years& dy) NOEXCEPT
+{
+ *this = *this - dy;
+ return *this;
+}
+
+CONSTCD11
+inline
+bool
+operator==(const year_lastweek& x, const year_lastweek& y) NOEXCEPT
+{
+ return x.year() == y.year();
+}
+
+CONSTCD11
+inline
+bool
+operator!=(const year_lastweek& x, const year_lastweek& y) NOEXCEPT
+{
+ return !(x == y);
+}
+
+CONSTCD11
+inline
+bool
+operator<(const year_lastweek& x, const year_lastweek& y) NOEXCEPT
+{
+ return x.year() < y.year();
+}
+
+CONSTCD11
+inline
+bool
+operator>(const year_lastweek& x, const year_lastweek& y) NOEXCEPT
+{
+ return y < x;
+}
+
+CONSTCD11
+inline
+bool
+operator<=(const year_lastweek& x, const year_lastweek& y) NOEXCEPT
+{
+ return !(y < x);
+}
+
+CONSTCD11
+inline
+bool
+operator>=(const year_lastweek& x, const year_lastweek& y) NOEXCEPT
+{
+ return !(x < y);
+}
+
+CONSTCD11
+inline
+year_lastweek
+operator+(const year_lastweek& ym, const years& dy) NOEXCEPT
+{
+ return year_lastweek{ym.year() + dy};
+}
+
+CONSTCD11
+inline
+year_lastweek
+operator+(const years& dy, const year_lastweek& ym) NOEXCEPT
+{
+ return ym + dy;
+}
+
+CONSTCD11
+inline
+year_lastweek
+operator-(const year_lastweek& ym, const years& dy) NOEXCEPT
+{
+ return ym + -dy;
+}
+
+template<class CharT, class Traits>
+inline
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year_lastweek& ywn)
+{
+ return os << ywn.year() << "-W last";
+}
+
+// weeknum_weekday
+
+CONSTCD11
+inline
+weeknum_weekday::weeknum_weekday(const iso_week::weeknum& wn,
+ const iso_week::weekday& wd) NOEXCEPT
+ : wn_(wn)
+ , wd_(wd)
+ {}
+
+CONSTCD11 inline weeknum weeknum_weekday::weeknum() const NOEXCEPT {return
wn_;}
+CONSTCD11 inline weekday weeknum_weekday::weekday() const NOEXCEPT {return
wd_;}
+
+CONSTCD14
+inline
+bool
+weeknum_weekday::ok() const NOEXCEPT
+{
+ return wn_.ok() && wd_.ok();
+}
+
+CONSTCD11
+inline
+bool
+operator==(const weeknum_weekday& x, const weeknum_weekday& y) NOEXCEPT
+{
+ return x.weeknum() == y.weeknum() && x.weekday() == y.weekday();
+}
+
+CONSTCD11
+inline
+bool
+operator!=(const weeknum_weekday& x, const weeknum_weekday& y) NOEXCEPT
+{
+ return !(x == y);
+}
+
+CONSTCD11
+inline
+bool
+operator<(const weeknum_weekday& x, const weeknum_weekday& y) NOEXCEPT
+{
+ return x.weeknum() < y.weeknum() ? true
+ : (x.weeknum() > y.weeknum() ? false
+ : (static_cast<unsigned>(x.weekday()) <
static_cast<unsigned>(y.weekday())));
+}
+
+CONSTCD11
+inline
+bool
+operator>(const weeknum_weekday& x, const weeknum_weekday& y) NOEXCEPT
+{
+ return y < x;
+}
+
+CONSTCD11
+inline
+bool
+operator<=(const weeknum_weekday& x, const weeknum_weekday& y) NOEXCEPT
+{
+ return !(y < x);
+}
+
+CONSTCD11
+inline
+bool
+operator>=(const weeknum_weekday& x, const weeknum_weekday& y) NOEXCEPT
+{
+ return !(x < y);
+}
+
+template<class CharT, class Traits>
+inline
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const weeknum_weekday& md)
+{
+ return os << md.weeknum() << '-' << md.weekday();
+}
+
+// lastweek_weekday
+
+CONSTCD11
+inline
+lastweek_weekday::lastweek_weekday(const iso_week::weekday& wd) NOEXCEPT
+ : wd_(wd)
+ {}
+
+CONSTCD11 inline weekday lastweek_weekday::weekday() const NOEXCEPT {return
wd_;}
+
+CONSTCD14
+inline
+bool
+lastweek_weekday::ok() const NOEXCEPT
+{
+ return wd_.ok();
+}
+
+CONSTCD11
+inline
+bool
+operator==(const lastweek_weekday& x, const lastweek_weekday& y) NOEXCEPT
+{
+ return x.weekday() == y.weekday();
+}
+
+CONSTCD11
+inline
+bool
+operator!=(const lastweek_weekday& x, const lastweek_weekday& y) NOEXCEPT
+{
+ return !(x == y);
+}
+
+CONSTCD11
+inline
+bool
+operator<(const lastweek_weekday& x, const lastweek_weekday& y) NOEXCEPT
+{
+ return static_cast<unsigned>(x.weekday()) <
static_cast<unsigned>(y.weekday());
+}
+
+CONSTCD11
+inline
+bool
+operator>(const lastweek_weekday& x, const lastweek_weekday& y) NOEXCEPT
+{
+ return y < x;
+}
+
+CONSTCD11
+inline
+bool
+operator<=(const lastweek_weekday& x, const lastweek_weekday& y) NOEXCEPT
+{
+ return !(y < x);
+}
+
+CONSTCD11
+inline
+bool
+operator>=(const lastweek_weekday& x, const lastweek_weekday& y) NOEXCEPT
+{
+ return !(x < y);
+}
+
+template<class CharT, class Traits>
+inline
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const lastweek_weekday& md)
+{
+ return os << "W last-" << md.weekday();
+}
+
+// year_lastweek_weekday
+
+CONSTCD11
+inline
+year_lastweek_weekday::year_lastweek_weekday(const iso_week::year& y,
+ const iso_week::weekday& wd)
NOEXCEPT
+ : y_(y)
+ , wd_(wd)
+ {}
+
+inline
+year_lastweek_weekday&
+year_lastweek_weekday::operator+=(const years& y) NOEXCEPT
+{
+ *this = *this + y;
+ return *this;
+}
+
+inline
+year_lastweek_weekday&
+year_lastweek_weekday::operator-=(const years& y) NOEXCEPT
+{
+ *this = *this - y;
+ return *this;
+}
+
+CONSTCD11 inline year year_lastweek_weekday::year() const NOEXCEPT {return y_;}
+
+CONSTCD14
+inline
+weeknum
+year_lastweek_weekday::weeknum() const NOEXCEPT
+{
+ return (y_ / last).weeknum();
+}
+
+CONSTCD11 inline weekday year_lastweek_weekday::weekday() const NOEXCEPT
{return wd_;}
+
+CONSTCD14
+inline
+year_lastweek_weekday::operator sys_days() const NOEXCEPT
+{
+ return
sys_days(date::year{static_cast<int>(y_)}/date::dec/date::thu[date::last])
+ + (sun - thu) - (sun - wd_);
+}
+
+CONSTCD14
+inline
+year_lastweek_weekday::operator local_days() const NOEXCEPT
+{
+ return
local_days(date::year{static_cast<int>(y_)}/date::dec/date::thu[date::last])
+ + (sun - thu) - (sun - wd_);
+}
+
+CONSTCD11
+inline
+bool
+year_lastweek_weekday::ok() const NOEXCEPT
+{
+ return y_.ok() && wd_.ok();
+}
+
+CONSTCD11
+inline
+bool
+operator==(const year_lastweek_weekday& x, const year_lastweek_weekday& y)
NOEXCEPT
+{
+ return x.year() == y.year() && x.weekday() == y.weekday();
+}
+
+CONSTCD11
+inline
+bool
+operator!=(const year_lastweek_weekday& x, const year_lastweek_weekday& y)
NOEXCEPT
+{
+ return !(x == y);
+}
+
+CONSTCD11
+inline
+bool
+operator<(const year_lastweek_weekday& x, const year_lastweek_weekday& y)
NOEXCEPT
+{
+ return x.year() < y.year() ? true
+ : (x.year() > y.year() ? false
+ : (static_cast<unsigned>(x.weekday()) <
static_cast<unsigned>(y.weekday())));
+}
+
+CONSTCD11
+inline
+bool
+operator>(const year_lastweek_weekday& x, const year_lastweek_weekday& y)
NOEXCEPT
+{
+ return y < x;
+}
+
+CONSTCD11
+inline
+bool
+operator<=(const year_lastweek_weekday& x, const year_lastweek_weekday& y)
NOEXCEPT
+{
+ return !(y < x);
+}
+
+CONSTCD11
+inline
+bool
+operator>=(const year_lastweek_weekday& x, const year_lastweek_weekday& y)
NOEXCEPT
+{
+ return !(x < y);
+}
+
+CONSTCD11
+inline
+year_lastweek_weekday
+operator+(const year_lastweek_weekday& ywnwd, const years& y) NOEXCEPT
+{
+ return (ywnwd.year() + y) / last / ywnwd.weekday();
+}
+
+CONSTCD11
+inline
+year_lastweek_weekday
+operator+(const years& y, const year_lastweek_weekday& ywnwd) NOEXCEPT
+{
+ return ywnwd + y;
+}
+
+CONSTCD11
+inline
+year_lastweek_weekday
+operator-(const year_lastweek_weekday& ywnwd, const years& y) NOEXCEPT
+{
+ return ywnwd + -y;
+}
+
+template<class CharT, class Traits>
+inline
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year_lastweek_weekday&
ywnwd)
+{
+ return os << ywnwd.year() << "-W last-" << ywnwd.weekday();
+}
+
+// year_weeknum_weekday
+
+CONSTCD11
+inline
+year_weeknum_weekday::year_weeknum_weekday(const iso_week::year& y,
+ const iso_week::weeknum& wn,
+ const iso_week::weekday& wd)
NOEXCEPT
+ : y_(y)
+ , wn_(wn)
+ , wd_(wd)
+ {}
+
+CONSTCD14
+inline
+year_weeknum_weekday::year_weeknum_weekday(const year_lastweek_weekday& ylwwd)
NOEXCEPT
+ : y_(ylwwd.year())
+ , wn_(ylwwd.weeknum())
+ , wd_(ylwwd.weekday())
+ {}
+
+CONSTCD14
+inline
+year_weeknum_weekday::year_weeknum_weekday(const sys_days& dp) NOEXCEPT
+ : year_weeknum_weekday(from_days(dp.time_since_epoch()))
+ {}
+
+CONSTCD14
+inline
+year_weeknum_weekday::year_weeknum_weekday(const local_days& dp) NOEXCEPT
+ : year_weeknum_weekday(from_days(dp.time_since_epoch()))
+ {}
+
+inline
+year_weeknum_weekday&
+year_weeknum_weekday::operator+=(const years& y) NOEXCEPT
+{
+ *this = *this + y;
+ return *this;
+}
+
+inline
+year_weeknum_weekday&
+year_weeknum_weekday::operator-=(const years& y) NOEXCEPT
+{
+ *this = *this - y;
+ return *this;
+}
+
+CONSTCD11 inline year year_weeknum_weekday::year() const NOEXCEPT {return y_;}
+CONSTCD11 inline weeknum year_weeknum_weekday::weeknum() const NOEXCEPT
{return wn_;}
+CONSTCD11 inline weekday year_weeknum_weekday::weekday() const NOEXCEPT
{return wd_;}
+
+CONSTCD14
+inline
+year_weeknum_weekday::operator sys_days() const NOEXCEPT
+{
+ return
sys_days(date::year{static_cast<int>(y_)-1}/date::dec/date::thu[date::last])
+ + (date::mon - date::thu) + weeks{static_cast<unsigned>(wn_)-1} +
(wd_ - mon);
+}
+
+CONSTCD14
+inline
+year_weeknum_weekday::operator local_days() const NOEXCEPT
+{
+ return
local_days(date::year{static_cast<int>(y_)-1}/date::dec/date::thu[date::last])
+ + (date::mon - date::thu) + weeks{static_cast<unsigned>(wn_)-1} +
(wd_ - mon);
+}
+
+CONSTCD14
+inline
+bool
+year_weeknum_weekday::ok() const NOEXCEPT
+{
+ return y_.ok() && wd_.ok() && iso_week::weeknum{1u} <= wn_ && wn_ <=
year_lastweek{y_}.weeknum();
+}
+
+CONSTCD14
+inline
+year_weeknum_weekday
+year_weeknum_weekday::from_days(days d) NOEXCEPT
+{
+ const auto dp = sys_days{d};
+ const auto wd = iso_week::weekday{dp};
+ auto y = date::year_month_day{dp + days{3}}.year();
+ auto start = sys_days((y -
date::years{1})/date::dec/date::thu[date::last]) + (mon-thu);
+ if (dp < start)
+ {
+ --y;
+ start = sys_days((y - date::years{1})/date::dec/date::thu[date::last])
+ (mon-thu);
+ }
+ const auto wn = iso_week::weeknum(
+ static_cast<unsigned>(date::trunc<weeks>(dp -
start).count() + 1));
+ return {iso_week::year(static_cast<int>(y)), wn, wd};
+}
+
+CONSTCD11
+inline
+bool
+operator==(const year_weeknum_weekday& x, const year_weeknum_weekday& y)
NOEXCEPT
+{
+ return x.year() == y.year() && x.weeknum() == y.weeknum() && x.weekday()
== y.weekday();
+}
+
+CONSTCD11
+inline
+bool
+operator!=(const year_weeknum_weekday& x, const year_weeknum_weekday& y)
NOEXCEPT
+{
+ return !(x == y);
+}
+
+CONSTCD11
+inline
+bool
+operator<(const year_weeknum_weekday& x, const year_weeknum_weekday& y)
NOEXCEPT
+{
+ return x.year() < y.year() ? true
+ : (x.year() > y.year() ? false
+ : (x.weeknum() < y.weeknum() ? true
+ : (x.weeknum() > y.weeknum() ? false
+ : (static_cast<unsigned>(x.weekday()) <
static_cast<unsigned>(y.weekday())))));
+}
+
+CONSTCD11
+inline
+bool
+operator>(const year_weeknum_weekday& x, const year_weeknum_weekday& y)
NOEXCEPT
+{
+ return y < x;
+}
+
+CONSTCD11
+inline
+bool
+operator<=(const year_weeknum_weekday& x, const year_weeknum_weekday& y)
NOEXCEPT
+{
+ return !(y < x);
+}
+
+CONSTCD11
+inline
+bool
+operator>=(const year_weeknum_weekday& x, const year_weeknum_weekday& y)
NOEXCEPT
+{
+ return !(x < y);
+}
+
+CONSTCD11
+inline
+year_weeknum_weekday
+operator+(const year_weeknum_weekday& ywnwd, const years& y) NOEXCEPT
+{
+ return (ywnwd.year() + y) / ywnwd.weeknum() / ywnwd.weekday();
+}
+
+CONSTCD11
+inline
+year_weeknum_weekday
+operator+(const years& y, const year_weeknum_weekday& ywnwd) NOEXCEPT
+{
+ return ywnwd + y;
+}
+
+CONSTCD11
+inline
+year_weeknum_weekday
+operator-(const year_weeknum_weekday& ywnwd, const years& y) NOEXCEPT
+{
+ return ywnwd + -y;
+}
+
+template<class CharT, class Traits>
+inline
+std::basic_ostream<CharT, Traits>&
+operator<<(std::basic_ostream<CharT, Traits>& os, const year_weeknum_weekday&
ywnwd)
+{
+ return os << ywnwd.year() << '-' << ywnwd.weeknum() << '-' <<
ywnwd.weekday();
+}
+
+// date composition operators
+
+CONSTCD11
+inline
+year_weeknum
+operator/(const year& y, const weeknum& wn) NOEXCEPT
+{
+ return {y, wn};
+}
+
+CONSTCD11
+inline
+year_weeknum
+operator/(const year& y, int wn) NOEXCEPT
+{
+ return y/weeknum(static_cast<unsigned>(wn));
+}
+
+CONSTCD11
+inline
+year_lastweek
+operator/(const year& y, last_week) NOEXCEPT
+{
+ return year_lastweek{y};
+}
+
+CONSTCD11
+inline
+weeknum_weekday
+operator/(const weeknum& wn, const weekday& wd) NOEXCEPT
+{
+ return {wn, wd};
+}
+
+CONSTCD11
+inline
+weeknum_weekday
+operator/(const weeknum& wn, int wd) NOEXCEPT
+{
+ return wn/weekday{static_cast<unsigned>(wd)};
+}
+
+CONSTCD11
+inline
+weeknum_weekday
+operator/(const weekday& wd, const weeknum& wn) NOEXCEPT
+{
+ return wn/wd;
+}
+
+CONSTCD11
+inline
+weeknum_weekday
+operator/(const weekday& wd, int wn) NOEXCEPT
+{
+ return weeknum{static_cast<unsigned>(wn)}/wd;
+}
+
+CONSTCD11
+inline
+lastweek_weekday
+operator/(const last_week&, const weekday& wd) NOEXCEPT
+{
+ return lastweek_weekday{wd};
+}
+
+CONSTCD11
+inline
+lastweek_weekday
+operator/(const last_week& wn, int wd) NOEXCEPT
+{
+ return wn / weekday{static_cast<unsigned>(wd)};
+}
+
+CONSTCD11
+inline
+lastweek_weekday
+operator/(const weekday& wd, const last_week& wn) NOEXCEPT
+{
+ return wn / wd;
+}
+
+CONSTCD11
+inline
+year_weeknum_weekday
+operator/(const year_weeknum& ywn, const weekday& wd) NOEXCEPT
+{
+ return {ywn.year(), ywn.weeknum(), wd};
+}
+
+CONSTCD11
+inline
+year_weeknum_weekday
+operator/(const year_weeknum& ywn, int wd) NOEXCEPT
+{
+ return ywn / weekday(static_cast<unsigned>(wd));
+}
+
+CONSTCD11
+inline
+year_weeknum_weekday
+operator/(const weeknum_weekday& wnwd, const year& y) NOEXCEPT
+{
+ return {y, wnwd.weeknum(), wnwd.weekday()};
+}
+
+CONSTCD11
+inline
+year_weeknum_weekday
+operator/(const weeknum_weekday& wnwd, int y) NOEXCEPT
+{
+ return wnwd / year{y};
+}
+
+CONSTCD11
+inline
+year_lastweek_weekday
+operator/(const year_lastweek& ylw, const weekday& wd) NOEXCEPT
+{
+ return {ylw.year(), wd};
+}
+
+CONSTCD11
+inline
+year_lastweek_weekday
+operator/(const year_lastweek& ylw, int wd) NOEXCEPT
+{
+ return ylw / weekday(static_cast<unsigned>(wd));
+}
+
+CONSTCD11
+inline
+year_lastweek_weekday
+operator/(const lastweek_weekday& lwwd, const year& y) NOEXCEPT
+{
+ return {y, lwwd.weekday()};
+}
+
+CONSTCD11
+inline
+year_lastweek_weekday
+operator/(const lastweek_weekday& lwwd, int y) NOEXCEPT
+{
+ return lwwd / year{y};
+}
+
+} // namespace iso_week
+
+#endif // ISO_WEEK_H
