std::chrono::weekday_last::ok
From cppreference.com
< cpp | chrono | weekday last
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 <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