std::chrono::month_weekday::ok (3) - Linux Manuals
std::chrono::month_weekday::ok: std::chrono::month_weekday::ok
NAME
std::chrono::month_weekday::ok - std::chrono::month_weekday::ok
Synopsis
constexpr bool ok() const noexcept; (since C++20)
Checks if the contained month and weekday_indexed objects are valid.
Return value
month().ok() && weekday_indexed().ok()