Defined in header
link represents an alternative name for a time zone.
Users cannot construct
link objects. The library implementation creates
link objects when it initializes the time zone database and provides const access to these objects.
link is not copyable but does have a defaulted move constructor and a defaulted move assignment operator. However, as users have only
const access to
link objects, these functions cannot be called in user code without invoking undefined behavior.
 Member functions
| accesses the name and target of this |
(public member function)
 Nonmember functions
| compares two |