29 Time library [time]

29.8 The civil calendar [time.cal]

29.8.11 Class month_­weekday [time.cal.mwd]

29.8.11.2 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().