std::chrono::weekday_indexed::ok (3) - Linux Manuals
std::chrono::weekday_indexed::ok: std::chrono::weekday_indexed::ok
NAME
std::chrono::weekday_indexed::ok - std::chrono::weekday_indexed::ok
Synopsis
constexpr bool ok() const noexcept; (since C++20)
Checks if the weekday object and the index stored in *this are both valid.
Return value
true if weekday().ok() == true and index() is in the range [1, 5]. Otherwise false.