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std::chrono::weekday(3)        C++ Standard Libary	 std::chrono::weekday(3)

NAME
     std::chrono::weekday - std::chrono::weekday

Synopsis
	Defined in header <chrono>
	class weekday;					     (since C++20)
	inline constexpr std::chrono::weekday Sunday{0};     (since C++20)
	inline constexpr std::chrono::weekday Monday{1};     (since C++20)
	inline constexpr std::chrono::weekday Tuesday{2};    (since C++20)
	inline constexpr std::chrono::weekday Wednesday{3};  (since C++20)
	inline constexpr std::chrono::weekday Thursday{4};   (since C++20)
	inline constexpr std::chrono::weekday Friday{5};     (since C++20)
	inline constexpr std::chrono::weekday Saturday{6};   (since C++20)

	The class weekday represent a day of the week in the proleptic Gregorian
     calendar.
	Its normal range is [0, 6], for Sunday through Saturday, but it can hold
     any value
	in  the  range	[0,  255].  Seven  named constants are predefined in the
     std::chrono
	namespace for the seven days of the week.

	weekday is a TriviallyCopyable StandardLayoutType.

Member functions
	constructor	constructs a weekday
			(public member function)
	operator++
	operator++(int) increments or decrements the weekday
	operator--	(public member function)
	operator--(int)
	operator+=	adds or subtracts a number of days
	operator-=	(public member function)
	c_encoding	retrieves the stored weekday value
	iso_encoding	retrieves ISO 8601 weekday value
			(public member function)
	ok		checks if the stored weekday value is valid
			(public member function)
			convenience syntax for constructing a weekday_indexed or
	operator[]	weekday_last from this weekday
			(public member function)

	Nonmember functions

	operator==  compares two weekday values
	(C++20)     (function)
	operator+   performs arithmetic on weekdays
	operator-   (function)
	(C++20)
	operator<<  outputs a weekday into a stream
	(C++20)     (function template)
	from_stream parses a weekday from a stream  according  to  the	provided
     format
	(C++20)     (function template)

Helper classes
	std::formatter<std::chrono::weekday> formatting support for weekday
	(C++20) 			     (class template specialization)
	std::hash<std::chrono::weekday>      hash support for std::chrono::week-
     day
	(C++26) 			     (class template specialization)

Example
     // Run this code

      #include <chrono>
      #include <iostream>

      int main()
      {
	  std::chrono::weekday x{42 / 13};
	  std::cout << x++ << '\n';
	  std::cout << x << '\n';
	  std::cout << ++x << '\n';
      }

Output:
      Wed
      Thu
      Fri

See also
	weekday_indexed represents the n^th weekday of a month
	(C++20) 	(class)

http://cppreference.com 	   2024.06.10		 std::chrono::weekday(3)
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