std::literals::chrono_literals::operator""d
Defined in header <chrono>
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constexpr std::chrono::day operator ""d(unsigned long long d) noexcept; |
(1) | (since C++20) |
Forms a std::chrono::day literal representing a day of the month in the calendar.
Parameters
d | - | the day value |
Return value
A std::chrono::day storing d
. If d > 255, the stored value is unspecified.
Possible implementation
constexpr std::chrono::day operator ""d(unsigned long long d) noexcept { return std::chrono::day(d); } |
Notes
This operator is declared in the namespace std::literals::chrono_literals
, where both literals
and chrono_literals
are inline namespaces. Access to this operator can be gained with using namespace std::literals, using namespace std::chrono_literals, and using namespace std::literals::chrono_literals.
In addition, within the namespace std::chrono
, the directive using namespace literals::chrono_literals; is provided by the standard library, so that if a programmer uses using namespace std::chrono; to gain access to the classes in the chrono library, the corresponding literal operators become visible as well.
Example
This section is incomplete Reason: no example |
See also
constructs a day (public member function of std::chrono::day ) |