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std::chrono::weekday_last::ok

From cppreference.com
< cpp‎ | chrono‎ | weekday last
 
 
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constexpr bool ok() const noexcept;
(since C++20)

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

[edit] Return value

weekday().ok()

[edit] Example

#include <iostream>
#include <chrono>
 
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