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

Set an option on the acceptor.

template<
    typename SettableSocketOption>
void set_option(
    const SettableSocketOption & option);

This function is used to set an option on the acceptor.

Setting the SOL_SOCKET/SO_REUSEADDR option:

boost::asio::ip::tcp::acceptor acceptor(my_context);
...
boost::asio::ip::tcp::acceptor::reuse_address option(true);
acceptor.set_option(option);