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std::chrono::month_day::month_day

month_day() = default;
 (1) (since C++20) 
constexpr month_day( const std::chrono::month& m,
                     const std::chrono::day& d ) noexcept;
 (2) (since C++20)

Constructs a month_day.

1) Default constructor leaves the stored month and day values uninitialized.
2) Constructs a month_day that stores the month m and the day d.

Notes

A more convenient way to construct a month_day is with operator/, e.g., std::chrono::April/1.

Example

#include <chrono>
#include <iostream>
 
int main()
{
    using namespace std::chrono_literals;
    constexpr auto mo_da = std::chrono::month_day(std::chrono::February, 29d);
    std::cout << static_cast<unsigned>(mo_da.day()) << '/' 
              << static_cast<unsigned>(mo_da.month()) << '\n';
}

Output:

29/2

See also

(C++20)
 conventional syntax for Gregorian calendar date creation
(function)

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