std::chrono::day::ok - cppreference.com (original) (raw)
| constexpr bool ok() const noexcept; | | (since C++20) | | ----------------------------------- | | ------------- |
Checks if the day value stored in *this is in the valid range, i.e., [1, 31].
[edit] Return value
true if the day value stored in *this is in the range [1, 31]. Otherwise false.
[edit] Example
#include using namespace std::chrono_literals; constexpr std::chrono::day d0{00}; constexpr std::chrono::day d1{13}; constexpr std::chrono::day d2{42}; static_assert ( d0 == 0d && !d0.ok() && d1 == 13d && d1.ok() && d2 == 42d && !d2.ok() ); int main() {}