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Establishes a socket connection by trying each endpoint in a sequence.
template< typename Protocol, typename Executor, typename EndpointSequence> Protocol::endpoint connect( basic_socket< Protocol, Executor > & s, const EndpointSequence & endpoints, asio::error_code & ec, constraint_t< is_endpoint_sequence< EndpointSequence >::value > = 0);
          This function attempts to connect a socket to one of a sequence of endpoints.
          It does this by repeated calls to the socket's connect
          member function, once for each endpoint in the sequence, until a connection
          is successfully established.
        
The socket to be connected. If the socket is already open, it will be closed.
A sequence of endpoints.
                Set to indicate what error occurred, if any. If the sequence is empty,
                set to asio::error::not_found. Otherwise, contains
                the error from the last connection attempt.
              
On success, the successfully connected endpoint. Otherwise, a default-constructed endpoint.
tcp::resolver r(my_context); tcp::resolver::query q("host", "service"); tcp::socket s(my_context); asio::error_code ec; asio::connect(s, r.resolve(q), ec); if (ec) { // An error occurred. }