std::chrono::month::ok
From cppreference.com
constexpr bool ok() const noexcept; |
(since C++20) | |
Checks if the month value stored in *this is in the valid range, i.e., [
1,
12]
.
[edit] Return value
true if the month value stored in *this is in the range [
1,
12]
. Otherwise false.
[edit] Example
Run this code
#include <chrono> #include <iostream> int main() { for (const unsigned mm : {6u, 0u, 16U}) { std::cout << mm << ": "; const std::chrono::month m{mm}; m.ok() ? std::cout << "month is valid\n" : std::cout << "month is invalid\n"; } }
Output:
6: month is valid 0: month is invalid 16: month is invalid