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std::chrono::month_weekday::month, std::chrono::month_weekday::weekday_indexed

From cppreference.com
 
 
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C-style date and time
 
std::chrono::month_weekday
Member functions
month_weekday::monthmonth_weekday::weekday_indexed
Nonmember functions
Helper classes
 
constexpr std::chrono::month month() const noexcept;
(1) (since C++20)
constexpr std::chrono::weekday_indexed weekday_indexed() const noexcept;
(2) (since C++20)

Retrieves a copy of the month and weekday_indexed objects stored in *this.

[edit] Return value

1) a copy of the std::chrono::month object stored in *this
2) a copy of the std::chrono::weekday_indexed object stored in *this

[edit] Example

#include <iostream>
#include <chrono>
 
int main()
{
    std::cout << std::boolalpha;
 
    auto mwdi {std::chrono::March/std::chrono::Friday[1]}; // 1st Friday in a March
    std::cout << (std::chrono::year_month_day{mwdi/2024} == 
                  std::chrono::year_month_day{std::chrono::March/1/2024})
                  << ' ';
    auto index = mwdi.weekday_indexed().index();
    auto weekday = mwdi.weekday_indexed().weekday();
    mwdi = {mwdi.month(), weekday[index + 4]}; // 5th Friday in a March
    std::cout << (std::chrono::year_month_day{mwdi/2024} == 
                  std::chrono::year_month_day{std::chrono::March/29/2024})
                  << '\n';
}

Output:

true true