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 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> specialization of std::formatter that formats a
   (C++20) weekday according to the provided format
                        (class template specialization)