std::chrono::weekday::c_encoding, std::chrono::weekday::iso_encoding

 

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Time point time_point (C++11) clock_time_conversion (C++20)   clock_cast (C++20) Duration duration (C++11) Clocks system_clock (C++11) steady_clock (C++11) is_clock (C++20) utc_clock (C++20) tai_clock (C++20) high_resolution_clock (C++11) gps_clock (C++20) file_clock (C++20) local_t (C++20) Time of day is_amis_pm (C++20)(C++20) make12make24 (C++20)(C++20) hh_mm_ss (C++20)

Calendar day (C++20) month (C++20) year (C++20) weekday (C++20) operator/ (C++20) year_month_day (C++20) year_month_day_last (C++20) year_month_weekday (C++20) year_month_weekday_last (C++20)   weekday_indexed (C++20) weekday_last (C++20) month_day (C++20) month_day_last (C++20) month_weekday (C++20) month_weekday_last (C++20) year_month (C++20) last_speclast (C++20)(C++20) chrono I/O parse (C++20)

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std::chrono::weekday

Member functions

weekday::weekday

weekday::operator++weekday::operator--

weekday::operator+=weekday::operator-=

weekday::c_encodingweekday::iso_encoding

weekday::ok

weekday::operator[]

Nonmember functions

operator==

operator+operator-

operator<<

from_stream

Helper classes

formatter<std::chrono::weekday>

formatter<std::chrono::hash> (C++26)

 

constexprunsigned c_encoding()constnoexcept;	(1)	(since C++20)
constexprunsigned iso_encoding()constnoexcept;	(2)	(since C++20)

1) Returns the weekday value stored in *this.

2) Returns the weekday value stored in *this, except that Sunday (stored as ​0​) is interpreted as 7 according to ISO 8601.

Return value

1) The weekday value stored in *this.

2)c_encoding()== 0u ? 7u : c_encoding()

Example

Run this code

#include <chrono>#include <iostream>   int main(){std::cout<<"i: C: ISO: Weekday:\n";   for(unsigned i{0}; i !=8;++i){conststd::chrono::weekday w{i};std::cout<< i <<" "<< w.c_encoding()<<" "<< w.iso_encoding()<<" "<< w <<'\n';}}

Output:

i: C: ISO: Weekday: 0 0 7 Sun 1 1 1 Mon 2 2 2 Tue 3 3 3 Wed 4 4 4 Thu 5 5 5 Fri 6 6 6 Sat 7 0 7 Sun