25 Time library [time]

25.8 The civil calendar [time.cal]

25.8.8 Class weekday_last [time.cal.wdlast]

25.8.8.1 Overview [time.cal.wdlast.overview]

namespace std::chrono {
  class weekday_last {
    chrono::weekday wd_;                // exposition only

    public:
    explicit constexpr weekday_last(const chrono::weekday& wd) noexcept;

    constexpr chrono::weekday weekday() const noexcept;
    constexpr bool ok() const noexcept;
  };
}

weekday_last represents the last weekday of a month.

[ Note

A weekday_last object can be constructed by indexing a weekday with last.

— end note

]

[ Example

constexpr auto wdl = Sunday[last];      // wdl is the last Sunday of an as yet unspecified month
static_assert(wdl.weekday() == Sunday);

— end example

]

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

25.8.8.2 Member functions [time.cal.wdlast.members]

🔗

explicit constexpr weekday_last(const chrono::weekday& wd) noexcept;

Effects: Constructs an object of type weekday_last by initializing wd_ with wd.

🔗

constexpr chrono::weekday weekday() const noexcept;

Returns: wd_.

🔗

constexpr bool ok() const noexcept;

Returns: wd_.ok().

25.8.8.3 Non-member functions [time.cal.wdlast.nonmembers]

🔗

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

Returns: x.weekday() == y.weekday().

🔗

template<class charT, class traits>
  basic_ostream<charT, traits>&
    operator<<(basic_ostream<charT, traits>& os, const weekday_last& wdl);