27 Time library [time]

27.8 The civil calendar [time.cal]

27.8.12 Class month_weekday_last [time.cal.mwdlast]

27.8.12.1 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 1: constexpr auto mwd = February/Tuesday[last]; // mwd is the last Tuesday of February of an as yet unspecified year static_assert(mwd.month() == February); static_assert(mwd.weekday_last() == Tuesday[last]); — end example]

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

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

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

Effects: Initializes m_ with m, and wdl_ with wdl.

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constexpr chrono::month month() const noexcept;

Returns: m_.

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constexpr chrono::weekday_last weekday_last() const noexcept;

Returns: wdl_.

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constexpr bool ok() const noexcept;

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

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

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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().

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