std::chrono::weekday_last::ok

 

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Calendar day (C++20) month (C++20) year (C++20) weekday (C++20) operator/ (C++20) year_month_day (C++20) year_month_day_last (C++20) year_month_weekday (C++20) year_month_weekday_last (C++20)   weekday_indexed (C++20) weekday_last (C++20) month_day (C++20) month_day_last (C++20) month_weekday (C++20) month_weekday_last (C++20) year_month (C++20) last_speclast (C++20)(C++20) chrono I/O parse (C++20)

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std::chrono::weekday_last

Member functions

weekday_last::weekday_last

weekday_last::weekday

weekday_last::ok

Nonmember functions

operator==

operator<<

Helper classes

formatter<std::chrono::weekday_last>

hash<std::chrono::weekday_last> (C++26)

 

constexpr bool ok() const noexcept;		(since C++20)

Checks if the weekday object stored in *this is valid.

Return value

weekday().ok()

Example

Run this code

#include <chrono>
#include <iostream>
 
int main()
{
    std::cout << std::boolalpha;

    auto wdl{std::chrono::Tuesday[std::chrono::last]};
    std::cout << (wdl.ok()) << ' ';

    wdl = {std::chrono::weekday(42)[std::chrono::last]};
    std::cout << (wdl.ok()) << '\n';
}

Output:

true false