25 Time library [time]

25.8 The civil calendar [time.cal]

25.8.12 Class month_weekday_last [time.cal.mwdlast]

25.8.12.1 Overview [time.cal.mwdlast.overview]

namespace std::chrono {
  class month_weekday_last {
    chrono::month        m_;    // exposition only
    chrono::weekday_last wdl_;  // exposition only
  public:
    constexpr month_weekday_last(const chrono::month& m,
                                 const chrono::weekday_last& wdl) noexcept;

    constexpr chrono::month        month()        const noexcept;
    constexpr chrono::weekday_last weekday_last() const noexcept;
    constexpr bool ok() const noexcept;
  };
}

month_weekday_last represents the last weekday of a month, of an as yet unspecified year.

To do this the month_weekday_last stores a month and a weekday_last.

[ Example

constexpr auto mwd
    = February/Tueday[last];    // mwd is the last Tuesday of February of an as yet unspecified year
static_assert(mwd.month() == February);
static_assert(mwd.weekday_last() == Tueday[last]);

— end example

]

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

25.8.12.2 Member functions [time.cal.mwdlast.members]

🔗

constexpr month_weekday_last(const chrono::month& m,
                             const chrono::weekday_last& wdl) noexcept;

Effects: Constructs an object of type month_weekday_last by initializing m_ with m, and wdl_ with wdl.

🔗

constexpr chrono::month month() const noexcept;

Returns: m_.

🔗

constexpr chrono::weekday_last weekday_last() const noexcept;

Returns: wdl_.

🔗

constexpr bool ok() const noexcept;

Returns: m_.ok() && wdl_.ok().

25.8.12.3 Non-member functions [time.cal.mwdlast.nonmembers]

🔗

constexpr bool operator==(const month_weekday_last& x, const month_weekday_last& y) noexcept;

Returns: x.month() == y.month() && x.weekday_last() == y.weekday_last().

🔗

template<class charT, class traits>
  basic_ostream<charT, traits>&
    operator<<(basic_ostream<charT, traits>& os, const month_weekday_last& mwdl);