std::chrono::month::ok
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std::chrono::month
Member functions
month::ok
Nonmember functions
Helper classes
(C++26)
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