std::chrono::year_month_day_last::year,std::chrono::year_month_day_last::month, (3) Linux Manual Page

std::chrono::year_month_day_last::year,std::chrono::year_month_day_last::month, – std::chrono::year_month_day_last::year,std::chrono::year_month_day_last::month,

Synopsis

constexpr std::chrono::year year() const noexcept;
(1)(since C++ 20)

    constexpr std::chrono::month month() const noexcept;
(2)(since C++ 20)

    constexpr std::chrono::day day() const noexcept;
(3)(since C++ 20)

    constexpr std::chrono::month_day_last month_day_last() const(4)(since C++ 20)

        noexcept;

Retrieves the field values stored in this year_month_day_last object.

Return values

1) Returns the stored std::chrono::year value.
2) Returns the stored std::chrono::month value.
3) A std::chrono::day value corresponding to the last day of the stored year and
month.
4) A std::chrono::month_day_last constructed from month().

Notes

The behavior of (3) when !this->ok() is not currently defined. It likely will be
defined to return some invalid day in that case (such as std::chrono::day(0)).