std::chrono::weekday_indexed::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_indexed

Member functions

weekday_indexed::weekday_indexed

weekday_indexed::weekday

weekday_indexed::index

weekday_indexed::ok

Nonmember functions

operator==

operator<<

Helper classes

formatter<std::chrono::weekday_indexed>

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

 

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.

Example

Run this code

#include <chrono>
#include <iostream>

int main()
{
    std::cout << std::boolalpha;

    std::chrono::weekday_indexed wdi{std::chrono::Tuesday[2]};
    std::cout << (wdi.ok()) << ' ';
    wdi = {std::chrono::weekday(42)[2]}; 
    std::cout << (wdi.ok()) << ' ';
    wdi = {std::chrono::Tuesday[-4]}; 
    std::cout << (wdi.ok()) << '\n';
}

Output:

true false false