Establishes a socket connection by trying each endpoint in a sequence.
template< typename Protocol, typename Iterator> Iterator connect( basic_socket< Protocol > & s, Iterator begin, Iterator end, asio::error_code & ec);
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.
An iterator pointing to the start of a sequence of endpoints.
An iterator pointing to the end of 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, an iterator denoting the successfully connected endpoint. Otherwise, the end iterator.
tcp::resolver r(io_context); tcp::resolver::query q("host", "service"); tcp::resolver::results_type e = r.resolve(q); tcp::socket s(io_context); asio::error_code ec; asio::connect(s, e.begin(), e.end(), ec); if (ec) { // An error occurred. }