]>
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5 // Copyright (c) 2003-2017 Christopher M. Kohlhoff (chris at kohlhoff dot com)
7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
14 #include <boost/array.hpp>
15 #include <boost/asio.hpp>
17 using boost::asio::ip::udp
;
19 std::string
make_daytime_string()
21 using namespace std
; // For time_t, time and ctime;
30 boost::asio::io_context io_context
;
32 udp::socket
socket(io_context
, udp::endpoint(udp::v4(), 13));
36 boost::array
<char, 1> recv_buf
;
37 udp::endpoint remote_endpoint
;
38 boost::system::error_code error
;
39 socket
.receive_from(boost::asio::buffer(recv_buf
), remote_endpoint
);
41 std::string message
= make_daytime_string();
43 boost::system::error_code ignored_error
;
44 socket
.send_to(boost::asio::buffer(message
),
45 remote_endpoint
, 0, ignored_error
);
48 catch (std::exception
& e
)
50 std::cerr
<< e
.what() << std::endl
;