Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
This is an older version of Boost and was released in 2024. The current version is 1.89.0.
const error::netdb_errors try_again = error::host_not_found_try_again;
Header: boost/asio/error.hpp
Convenience header: boost/asio.hpp