29 Time library [time]

29.8 The civil calendar [time.cal]

29.8.11 Class month_weekday [time.cal.mwd] Member functions [time.cal.mwd.members]

constexpr month_weekday(const chrono::month& m, const chrono::weekday_indexed& wdi) noexcept;
Effects: Initializes m_ with m, and wdi_ with wdi.
constexpr chrono::month month() const noexcept;
Returns: m_.
constexpr chrono::weekday_indexed weekday_indexed() const noexcept;
Returns: wdi_.
constexpr bool ok() const noexcept;
Returns: m_.ok() && wdi_.ok().