[time.cal.ymdlast.overview] (original) (raw)

30 Time library [time]

30.8 The civil calendar [time.cal]

30.8.15 Class year_month_day_last [time.cal.ymdlast]

30.8.15.1 Overview [time.cal.ymdlast.overview]

namespace std::chrono { class year_month_day_last { chrono::year y_; chrono::month_day_last mdl_; public: constexpr year_month_day_last(const chrono::year& y,const chrono::month_day_last& mdl) noexcept;constexpr year_month_day_last& operator+=(const months& m) noexcept;constexpr year_month_day_last& operator-=(const months& m) noexcept;constexpr year_month_day_last& operator+=(const years& y) noexcept;constexpr year_month_day_last& operator-=(const years& y) noexcept;constexpr chrono::year year() const noexcept;constexpr chrono::month month() const noexcept;constexpr chrono::month_day_last month_day_last() const noexcept;constexpr chrono::day day() const noexcept;constexpr operator sys_days() const noexcept;constexpr explicit operator local_days() const noexcept;constexpr bool ok() const noexcept;};}

year_month_day_last represents the last day of a specific year and month.

year_month_day_last is a field-based time point with a resolution of days, except that it is restricted to pointing to the last day of a year and month.

[Note 1:

year_month_day_last supports years- and months-oriented arithmetic, but not days-oriented arithmetic.

For the latter, there is a conversion to sys_days, which efficiently supports days-oriented arithmetic.

— _end note_]

year_month_day_last is a trivially copyable and standard-layout class type.