std::chrono::year_month_weekday_last::ok (3) - Linux Manuals
std::chrono::year_month_weekday_last::ok: std::chrono::year_month_weekday_last::ok
NAME
std::chrono::year_month_weekday_last::ok - std::chrono::year_month_weekday_last::ok
Synopsis
constexpr bool ok() const noexcept; (since C++20)
Checks if this object represents a valid date. Since a year_month_weekday_last represents the last weekday of a particular month, it is valid as long as the year, month and weekday are valid.
Return value
year().ok() && month().ok() && weekday().ok()