std::chrono::day::day
From cppreference.com
| day() = default; |
(1) | (since C++20) |
| constexpr explicit day( unsigned d ) noexcept; |
(2) | (since C++20) |
Constructs a day object.
1) Default constructor leaves the day value uninitialized.
2) If d <= 255, constructs a
day object holding the day value d. Otherwise the value held is unspecified.