std::chrono::operator+, std::chrono::operator- (std::chrono::year_month_weekday_last)
constexpr std::chrono::year_month_weekday_last
operator+(const std::chrono::year_month_weekday_last& ymwdl,
const std::chrono::months& dm) noexcept;
| | (since C++20) |
constexpr std::chrono::year_month_weekday_last
operator+(const std::chrono::months& dm,
const std::chrono::year_month_weekday_last& ymwdl) noexcept;
| | (since C++20) |
constexpr std::chrono::year_month_weekday_last
operator+(const std::chrono::year_month_weekday_last& ymwdl,
const std::chrono::years& dy) noexcept;
| | (since C++20) |
constexpr std::chrono::year_month_weekday_last
operator+(const std::chrono::years& dy,
const std::chrono::year_month_weekday_last& ymwdl) noexcept;
| | (since C++20) |
constexpr std::chrono::year_month_weekday_last
operator-(const std::chrono::year_month_weekday_last& ymwdl,
const std::chrono::months& dm) noexcept;
| | (since C++20) |
constexpr std::chrono::year_month_weekday_last
operator-(const std::chrono::year_month_weekday_last& ymwdl,
const std::chrono::years& dy) noexcept;
| | (since C++20) |
1-2) Adds
dm.count() months to the date represented by
ymwdl. The result has the same
year() and
month() as
std::chrono::year_month(ymwdl.year(), ymwdl.month()) + dm and the same
weekday() as
ymwdl.
3-4) Adds
dy.count() years to the date represented by
ymwdl. The result is equivalent to
std::chrono::year_month_weekday_last(ymwdl.year() + dy, ymwdl.month(), ymwd.weekday_last()).
5) Subtracts dm.count() months from the date represented by ymwdl. Equivalent to ymwdl+ -dm.
6) Subtracts dy.count() years from the date represented by ymwdl. Equivalent to ymwdl + -dy.