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

any_connection::async_close

Cleanly closes the connection to the server.

template<
    class CompletionToken = with_diagnostics_t<asio::deferred_t>>
auto
async_close(
    CompletionToken&& token = {});
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template<
    class CompletionToken = with_diagnostics_t<asio::deferred_t>>
auto
async_close(
    diagnostics& diag,
    CompletionToken&& token = {});
  » more...