...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Converts *this
into a time_point
(unchecked
access).
constexpr time_point get_time_point() const;
this->valid() == true
(if violated, results in undefined behavior).
No-throw guarantee.