...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
true if ownership of
the memory resource is not shared and deallocate is trivial.
bool is_not_shared_and_deallocate_is_trivial() const;
This function is used to determine if calls to deallocate can effectively be skipped.
! this->is_shared() &&