Scroll to navigation

std::chrono::month_weekday_last::ok(3) C++ Standard Libary std::chrono::month_weekday_last::ok(3)

NAME

std::chrono::month_weekday_last::ok - std::chrono::month_weekday_last::ok

Synopsis


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


Checks if the contained month and weekday_last objects are valid.

Return value


month().ok() && weekday_last().ok()

Example

// Run this code


#include <chrono>
#include <iostream>


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


auto mwdl{std::chrono::March/std::chrono::Wednesday[std::chrono::last]};
std::cout << (mwdl.ok()) << ' ';
mwdl = {std::chrono::month(3)/std::chrono::weekday(42)[std::chrono::last]};
std::cout << (mwdl.ok()) << '\n';
}

Output:


true false

2024.06.10 http://cppreference.com