std::chrono::year_month::ok
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< cpp | chrono | year month
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std::chrono::year_month
Member functions
year_month::ok
Nonmember functions
Helper classes
(C++26)
constexpr bool ok() const noexcept;
(since C++20)
Checks if the year and month values stored in this object are valid.
[edit] Return value
year().ok() && month().ok()
[edit] Example
Run this code
#include <chrono> using namespace std::chrono_literals; int main() { constexpr std::chrono::year_month ym1{3030y, std::chrono::July }; static_assert(ym1.ok()); constexpr std::chrono::year_month ym2{std::chrono::year (2020)/16}; static_assert(!ym2.ok()); }