std::chrono::year_month_weekday::ok
From cppreference.com
< cpp | chrono | year month weekday
constexpr bool ok() const noexcept; |
(since C++20) | |
Checks if this year_month_weekday
object represents a valid date.
Return value
true if this year_month_weekday
object represents a valid date, that is, year().ok() && month().ok() && weekday_indexed().ok() is true and there are at least index() weekday()s in the specified year and month. Otherwise false.