template< typename ConstBufferSequence, typename WriteHandler> DEDUCED async_send_to( const ConstBufferSequence & buffers, const endpoint_type & destination, WriteHandler && handler); » more... template< typename ConstBufferSequence, typename WriteHandler> DEDUCED async_send_to( const ConstBufferSequence & buffers, const endpoint_type & destination, socket_base::message_flags flags, WriteHandler && handler); » more...