std::chrono::weekday_last::ok
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< cpp | chrono | weekday last
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std::chrono::weekday_last
Member functions
weekday_last::ok
Nonmember functions
Helper classes
(C++26)
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
Run this code
#include <chrono> #include <iostream> 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