...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Get the host name associated with the entry.
template< class Allocator> std::basic_string< char, std::char_traits< char >, Allocator > host_name( const Allocator & alloc = Allocator()) const;