3.1 KiB
[time.cal.wdlast]
30 Time library [time]
30.8 The civil calendar [time.cal]
30.8.8 Class weekday_last [time.cal.wdlast]
30.8.8.1 Overview [time.cal.wdlast.overview]
namespace std::chrono {class weekday_last { chrono::weekday wd_; // exposition onlypublic:constexpr explicit 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 1:
A weekday_last object can be constructed by indexing a weekday with last.
â end note]
[Example 1: constexpr auto wdl = Sunday[last]; // wdl is the last Sunday of an as yet unspecified monthstatic_assert(wdl.weekday() == Sunday); â end example]
weekday_last is a trivially copyable and standard-layout class type.
30.8.8.2 Member functions [time.cal.wdlast.members]
constexpr explicit weekday_last(const chrono::weekday& wd) noexcept;
Effects: Initializes wd_ with wd.
constexpr chrono::weekday weekday() const noexcept;
Returns: wd_.
constexpr bool ok() const noexcept;
Returns: wd_.ok().
30.8.8.3 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);
Effects: Equivalent to:return os << format(os.getloc(), STATICALLY-WIDEN("{:L}[last]"), wdl.weekday());