NAME

std::chrono::year_month::ok - std::chrono::year_month::ok

Synopsis

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

Checks if the year and month values stored in this object are valid.

Return value

year().ok() && month().ok()

Example

// Run this code

#include <iostream>
#include <chrono>

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

constexpr std::chrono::year_month ym1 {std::chrono::year(2020), std::chrono::July};
std::cout << (ym1.ok()) << ' ';
constexpr std::chrono::year_month ym2 {std::chrono::year(2020)/16};
std::cout << (ym2.ok()) << '\n';
}

Output:

true false