text: //
  // udp.cpp
  // ~~~~~~~
  //
  // Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
  //
  // Distributed under the Boost Software License, Version 1.0. (See accompanying
  // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  //
  
  // Disable autolinking for unit tests.
  #if !defined(BOOST_ALL_NO_LIB)
  #define BOOST_ALL_NO_LIB 1
  #endif // !defined(BOOST_ALL_NO_LIB)
  
  // Test that header file is self-contained.
  #include "asio/ip/udp.hpp"
  
  #include <cstring>
  #include "asio/io_context.hpp"
  #include "../unit_test.hpp"
  #include "../archetypes/async_result.hpp"
  #include "../archetypes/gettable_socket_option.hpp"
  #include "../archetypes/io_control_command.hpp"
  #include "../archetypes/settable_socket_option.hpp"
  
  #if defined(ASIO_HAS_BOOST_BIND)
  # include <boost/bind.hpp>
  #else // defined(ASIO_HAS_BOOST_BIND)
  # include <functional>
  #endif // defined(ASIO_HAS_BOOST_BIND)
  
  //------------------------------------------------------------------------------
  
  // ip_udp_socket_compile test
  // ~~~~~~~~~~~~~~~~~~~~~~~~~~
  // The following test checks that all public member functions on the class
  // ip::udp::socket compile and link correctly. Runtime failures are ignored.
  
  namespace ip_udp_socket_compile {
  
  struct connect_handler
  {
    connect_handler() {}
    void operator()(const asio::error_code&) {}
  #if defined(ASIO_HAS_MOVE)
    connect_handler(connect_handler&&) {}
  private:
    connect_handler(const connect_handler&);
  #endif // defined(ASIO_HAS_MOVE)
  };
  
  struct wait_handler
  {
    wait_handler() {}
    void operator()(const asio::error_code&) {}
  #if defined(ASIO_HAS_MOVE)
    wait_handler(wait_handler&&) {}
  private:
    wait_handler(const wait_handler&);
  #endif // defined(ASIO_HAS_MOVE)
  };
  
  struct send_handler
  {
    send_handler() {}
    void operator()(const asio::error_code&, std::size_t) {}
  #if defined(ASIO_HAS_MOVE)
    send_handler(send_handler&&) {}
  private:
    send_handler(const send_handler&);
  #endif // defined(ASIO_HAS_MOVE)
  };
  
  struct receive_handler
  {
    receive_handler() {}
    void operator()(const asio::error_code&, std::size_t) {}
  #if defined(ASIO_HAS_MOVE)
    receive_handler(receive_handler&&) {}
  private:
    receive_handler(const receive_handler&);
  #endif // defined(ASIO_HAS_MOVE)
  };
  
  void test()
  {
    using namespace asio;
    namespace ip = asio::ip;
  
    try
    {
      io_context ioc;
      const io_context::executor_type ioc_ex = ioc.get_executor();
      char mutable_char_buffer[128] = "";
      const char const_char_buffer[128] = "";
      socket_base::message_flags in_flags = 0;
      archetypes::settable_socket_option<void> settable_socket_option1;
      archetypes::settable_socket_option<int> settable_socket_option2;
      archetypes::settable_socket_option<double> settable_socket_option3;
      archetypes::gettable_socket_option<void> gettable_socket_option1;
      archetypes::gettable_socket_option<int> gettable_socket_option2;
      archetypes::gettable_socket_option<double> gettable_socket_option3;
      archetypes::io_control_command io_control_command;
      archetypes::lazy_handler lazy;
      asio::error_code ec;
  
      // basic_datagram_socket constructors.
  
      ip::udp::socket socket1(ioc);
      ip::udp::socket socket2(ioc, ip::udp::v4());
      ip::udp::socket socket3(ioc, ip::udp::v6());
      ip::udp::socket socket4(ioc, ip::udp::endpoint(ip::udp::v4(), 0));
      ip::udp::socket socket5(ioc, ip::udp::endpoint(ip::udp::v6(), 0));
  #if !defined(ASIO_WINDOWS_RUNTIME)
      ip::udp::socket::native_handle_type native_socket1
        = ::socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
      ip::udp::socket socket6(ioc, ip::udp::v4(), native_socket1);
  #endif // !defined(ASIO_WINDOWS_RUNTIME)
  
      ip::udp::socket socket7(ioc_ex);
      ip::udp::socket socket8(ioc_ex, ip::udp::v4());
      ip::udp::socket socket9(ioc_ex, ip::udp::v6());
      ip::udp::socket socket10(ioc_ex, ip::udp::endpoint(ip::udp::v4(), 0));
      ip::udp::socket socket11(ioc_ex, ip::udp::endpoint(ip::udp::v6(), 0));
  #if !defined(ASIO_WINDOWS_RUNTIME)
      ip::udp::socket::native_handle_type native_socket2
        = ::socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
      ip::udp::socket socket12(ioc_ex, ip::udp::v4(), native_socket2);
  #endif // !defined(ASIO_WINDOWS_RUNTIME)
  
  #if defined(ASIO_HAS_MOVE)
      ip::udp::socket socket13(std::move(socket6));
  #endif // defined(ASIO_HAS_MOVE)
  
      // basic_datagram_socket operators.
  
  #if defined(ASIO_HAS_MOVE)
      socket1 = ip::udp::socket(ioc);
      socket1 = std::move(socket2);
  #endif // defined(ASIO_HAS_MOVE)
  
      // basic_io_object functions.
  
      ip::udp::socket::executor_type ex = socket1.get_executor();
      (void)ex;
  
      // basic_socket functions.
  
      ip::udp::socket::lowest_layer_type& lowest_layer = socket1.lowest_layer();
      (void)lowest_layer;
  
      const ip::udp::socket& socket14 = socket1;
      const ip::udp::socket::lowest_layer_type& lowest_layer2
        = socket14.lowest_layer();
      (void)lowest_layer2;
  
      socket1.open(ip::udp::v4());
      socket1.open(ip::udp::v6());
      socket1.open(ip::udp::v4(), ec);
      socket1.open(ip::udp::v6(), ec);
  
  #if !defined(ASIO_WINDOWS_RUNTIME)
      ip::udp::socket::native_handle_type native_socket3
        = ::socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
      socket1.assign(ip::udp::v4(), native_socket3);
      ip::udp::socket::native_handle_type native_socket4
        = ::socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
      socket1.assign(ip::udp::v4(), native_socket4, ec);
  #endif // !defined(ASIO_WINDOWS_RUNTIME)
  
      bool is_open = socket1.is_open();
      (void)is_open;
  
      socket1.close();
      socket1.close(ec);
  
      socket1.release();
      socket1.release(ec);
  
      ip::udp::socket::native_handle_type native_socket5
        = socket1.native_handle();
      (void)native_socket5;
  
      socket1.cancel();
      socket1.cancel(ec);
  
      bool at_mark1 = socket1.at_mark();
      (void)at_mark1;
      bool at_mark2 = socket1.at_mark(ec);
      (void)at_mark2;
  
      std::size_t available1 = socket1.available();
      (void)available1;
      std::size_t available2 = socket1.available(ec);
      (void)available2;
  
      socket1.bind(ip::udp::endpoint(ip::udp::v4(), 0));
      socket1.bind(ip::udp::endpoint(ip::udp::v6(), 0));
      socket1.bind(ip::udp::endpoint(ip::udp::v4(), 0), ec);
      socket1.bind(ip::udp::endpoint(ip::udp::v6(), 0), ec);
  
      socket1.connect(ip::udp::endpoint(ip::udp::v4(), 0));
      socket1.connect(ip::udp::endpoint(ip::udp::v6(), 0));
      socket1.connect(ip::udp::endpoint(ip::udp::v4(), 0), ec);
      socket1.connect(ip::udp::endpoint(ip::udp::v6(), 0), ec);
  
      socket1.async_connect(ip::udp::endpoint(ip::udp::v4(), 0),
          connect_handler());
      socket1.async_connect(ip::udp::endpoint(ip::udp::v6(), 0),
          connect_handler());
      int i1 = socket1.async_connect(ip::udp::endpoint(ip::udp::v4(), 0), lazy);
      (void)i1;
      int i2 = socket1.async_connect(ip::udp::endpoint(ip::udp::v6(), 0), lazy);
      (void)i2;
  
      socket1.set_option(settable_socket_option1);
      socket1.set_option(settable_socket_option1, ec);
      socket1.set_option(settable_socket_option2);
      socket1.set_option(settable_socket_option2, ec);
      socket1.set_option(settable_socket_option3);
      socket1.set_option(settable_socket_option3, ec);
  
      socket1.get_option(gettable_socket_option1);
      socket1.get_option(gettable_socket_option1, ec);
      socket1.get_option(gettable_socket_option2);
      socket1.get_option(gettable_socket_option2, ec);
      socket1.get_option(gettable_socket_option3);
      socket1.get_option(gettable_socket_option3, ec);
  
      socket1.io_control(io_control_command);
      socket1.io_control(io_control_command, ec);
  
      bool non_blocking1 = socket1.non_blocking();
      (void)non_blocking1;
      socket1.non_blocking(true);
      socket1.non_blocking(false, ec);
  
      bool non_blocking2 = socket1.native_non_blocking();
      (void)non_blocking2;
      socket1.native_non_blocking(true);
      socket1.native_non_blocking(false, ec);
  
      ip::udp::endpoint endpoint1 = socket1.local_endpoint();
      (void)endpoint1;
      ip::udp::endpoint endpoint2 = socket1.local_endpoint(ec);
      (void)endpoint2;
  
      ip::udp::endpoint endpoint3 = socket1.remote_endpoint();
      (void)endpoint3;
      ip::udp::endpoint endpoint4 = socket1.remote_endpoint(ec);
      (void)endpoint4;
  
      socket1.shutdown(socket_base::shutdown_both);
      socket1.shutdown(socket_base::shutdown_both, ec);
  
      socket1.wait(socket_base::wait_read);
      socket1.wait(socket_base::wait_write, ec);
  
      socket1.async_wait(socket_base::wait_read, wait_handler());
      int i3 = socket1.async_wait(socket_base::wait_write, lazy);
      (void)i3;
  
      // basic_datagram_socket functions.
  
      socket1.send(buffer(mutable_char_buffer));
      socket1.send(buffer(const_char_buffer));
      socket1.send(null_buffers());
      socket1.send(buffer(mutable_char_buffer), in_flags);
      socket1.send(buffer(const_char_buffer), in_flags);
      socket1.send(null_buffers(), in_flags);
      socket1.send(buffer(mutable_char_buffer), in_flags, ec);
      socket1.send(buffer(const_char_buffer), in_flags, ec);
      socket1.send(null_buffers(), in_flags, ec);
  
      socket1.async_send(buffer(mutable_char_buffer), send_handler());
      socket1.async_send(buffer(const_char_buffer), send_handler());
      socket1.async_send(null_buffers(), send_handler());
      socket1.async_send(buffer(mutable_char_buffer), in_flags, send_handler());
      socket1.async_send(buffer(const_char_buffer), in_flags, send_handler());
      socket1.async_send(null_buffers(), in_flags, send_handler());
      int i4 = socket1.async_send(buffer(mutable_char_buffer), lazy);
      (void)i4;
      int i5 = socket1.async_send(buffer(const_char_buffer), lazy);
      (void)i5;
      int i6 = socket1.async_send(null_buffers(), lazy);
      (void)i6;
      int i7 = socket1.async_send(buffer(mutable_char_buffer), in_flags, lazy);
      (void)i7;
      int i8 = socket1.async_send(buffer(const_char_buffer), in_flags, lazy);
      (void)i8;
      int i9 = socket1.async_send(null_buffers(), in_flags, lazy);
      (void)i9;
  
      socket1.send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0));
      socket1.send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0));
      socket1.send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0));
      socket1.send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0));
      socket1.send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v4(), 0));
      socket1.send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v6(), 0));
      socket1.send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags);
      socket1.send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags);
      socket1.send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags);
      socket1.send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags);
      socket1.send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags);
      socket1.send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags);
      socket1.send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags, ec);
      socket1.send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags, ec);
      socket1.send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags, ec);
      socket1.send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags, ec);
      socket1.send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags, ec);
      socket1.send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags, ec);
  
      socket1.async_send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), send_handler());
      socket1.async_send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), send_handler());
      socket1.async_send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), send_handler());
      socket1.async_send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), send_handler());
      socket1.async_send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v4(), 0), send_handler());
      socket1.async_send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v6(), 0), send_handler());
      socket1.async_send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags, send_handler());
      socket1.async_send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags, send_handler());
      socket1.async_send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags, send_handler());
      socket1.async_send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags, send_handler());
      socket1.async_send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags, send_handler());
      socket1.async_send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags, send_handler());
      int i10 = socket1.async_send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), lazy);
      (void)i10;
      int i11 = socket1.async_send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), lazy);
      (void)i11;
      int i12 = socket1.async_send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), lazy);
      (void)i12;
      int i13 = socket1.async_send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), lazy);
      (void)i13;
      int i14 = socket1.async_send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v4(), 0), lazy);
      (void)i14;
      int i15 = socket1.async_send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v6(), 0), lazy);
      (void)i15;
      int i16 = socket1.async_send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags, lazy);
      (void)i16;
      int i17 = socket1.async_send_to(buffer(mutable_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags, lazy);
      (void)i17;
      int i18 = socket1.async_send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags, lazy);
      (void)i18;
      int i19 = socket1.async_send_to(buffer(const_char_buffer),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags, lazy);
      (void)i19;
      int i20 = socket1.async_send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v4(), 0), in_flags, lazy);
      (void)i20;
      int i21 = socket1.async_send_to(null_buffers(),
          ip::udp::endpoint(ip::udp::v6(), 0), in_flags, lazy);
      (void)i21;
  
      socket1.receive(buffer(mutable_char_buffer));
      socket1.receive(null_buffers());
      socket1.receive(buffer(mutable_char_buffer), in_flags);
      socket1.receive(null_buffers(), in_flags);
      socket1.receive(buffer(mutable_char_buffer), in_flags, ec);
      socket1.receive(null_buffers(), in_flags, ec);
  
      socket1.async_receive(buffer(mutable_char_buffer), receive_handler());
      socket1.async_receive(null_buffers(), receive_handler());
      socket1.async_receive(buffer(mutable_char_buffer), in_flags,
          receive_handler());
      socket1.async_receive(null_buffers(), in_flags, receive_handler());
      int i22 = socket1.async_receive(buffer(mutable_char_buffer), lazy);
      (void)i22;
      int i23 = socket1.async_receive(null_buffers(), lazy);
      (void)i23;
      int i24 = socket1.async_receive(buffer(mutable_char_buffer),
          in_flags, lazy);
      (void)i24;
      int i25 = socket1.async_receive(null_buffers(), in_flags, lazy);
      (void)i25;
  
      ip::udp::endpoint endpoint;
      socket1.receive_from(buffer(mutable_char_buffer), endpoint);
      socket1.receive_from(null_buffers(), endpoint);
      socket1.receive_from(buffer(mutable_char_buffer), endpoint, in_flags);
      socket1.receive_from(null_buffers(), endpoint, in_flags);
      socket1.receive_from(buffer(mutable_char_buffer), endpoint, in_flags, ec);
      socket1.receive_from(null_buffers(), endpoint, in_flags, ec);
  
      socket1.async_receive_from(buffer(mutable_char_buffer),
          endpoint, receive_handler());
      socket1.async_receive_from(null_buffers(),
          endpoint, receive_handler());
      socket1.async_receive_from(buffer(mutable_char_buffer),
          endpoint, in_flags, receive_handler());
      socket1.async_receive_from(null_buffers(),
          endpoint, in_flags, receive_handler());
      int i26 = socket1.async_receive_from(buffer(mutable_char_buffer),
          endpoint, lazy);
      (void)i26;
      int i27 = socket1.async_receive_from(null_buffers(),
          endpoint, lazy);
      (void)i27;
      int i28 = socket1.async_receive_from(buffer(mutable_char_buffer),
          endpoint, in_flags, lazy);
      (void)i28;
      int i29 = socket1.async_receive_from(null_buffers(),
          endpoint, in_flags, lazy);
      (void)i29;
    }
    catch (std::exception&)
    {
    }
  }
  
  } // namespace ip_udp_socket_compile
  
  //------------------------------------------------------------------------------
  
  // ip_udp_socket_runtime test
  // ~~~~~~~~~~~~~~~~~~~~~~~~~~
  // The following test checks the runtime operation of the ip::udp::socket class.
  
  namespace ip_udp_socket_runtime {
  
  void handle_send(size_t expected_bytes_sent,
      const asio::error_code& err, size_t bytes_sent)
  {
    ASIO_CHECK(!err);
    ASIO_CHECK(expected_bytes_sent == bytes_sent);
  }
  
  void handle_recv(size_t expected_bytes_recvd,
      const asio::error_code& err, size_t bytes_recvd)
  {
    ASIO_CHECK(!err);
    ASIO_CHECK(expected_bytes_recvd == bytes_recvd);
  }
  
  void test()
  {
    using namespace std; // For memcmp and memset.
    using namespace asio;
    namespace ip = asio::ip;
  
  #if defined(ASIO_HAS_BOOST_BIND)
    namespace bindns = boost;
  #else // defined(ASIO_HAS_BOOST_BIND)
    namespace bindns = std;
    using std::placeholders::_1;
    using std::placeholders::_2;
  #endif // defined(ASIO_HAS_BOOST_BIND)
  
    io_context ioc;
  
    ip::udp::socket s1(ioc, ip::udp::endpoint(ip::udp::v4(), 0));
    ip::udp::endpoint target_endpoint = s1.local_endpoint();
    target_endpoint.address(ip::address_v4::loopback());
  
    ip::udp::socket s2(ioc);
    s2.open(ip::udp::v4());
    s2.bind(ip::udp::endpoint(ip::udp::v4(), 0));
    char send_msg[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    s2.send_to(buffer(send_msg, sizeof(send_msg)), target_endpoint);
  
    char recv_msg[sizeof(send_msg)];
    ip::udp::endpoint sender_endpoint;
    size_t bytes_recvd = s1.receive_from(buffer(recv_msg, sizeof(recv_msg)),
        sender_endpoint);
  
    ASIO_CHECK(bytes_recvd == sizeof(send_msg));
    ASIO_CHECK(memcmp(send_msg, recv_msg, sizeof(send_msg)) == 0);
  
    memset(recv_msg, 0, sizeof(recv_msg));
  
    target_endpoint = sender_endpoint;
    s1.async_send_to(buffer(send_msg, sizeof(send_msg)), target_endpoint,
        bindns::bind(handle_send, sizeof(send_msg), _1, _2));
    s2.async_receive_from(buffer(recv_msg, sizeof(recv_msg)), sender_endpoint,
        bindns::bind(handle_recv, sizeof(recv_msg), _1, _2));
  
    ioc.run();
  
    ASIO_CHECK(memcmp(send_msg, recv_msg, sizeof(send_msg)) == 0);
  }
  
  } // namespace ip_udp_socket_runtime
  
  //------------------------------------------------------------------------------
  
  // ip_udp_resolver_compile test
  // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  // The following test checks that all public member functions on the class
  // ip::udp::resolver compile and link correctly. Runtime failures are ignored.
  
  namespace ip_udp_resolver_compile {
  
  struct resolve_handler
  {
    resolve_handler() {}
    void operator()(const asio::error_code&,
        asio::ip::udp::resolver::results_type) {}
  #if defined(ASIO_HAS_MOVE)
    resolve_handler(resolve_handler&&) {}
  private:
    resolve_handler(const resolve_handler&);
  #endif // defined(ASIO_HAS_MOVE)
  };
  
  void test()
  {
    using namespace asio;
    namespace ip = asio::ip;
  
    try
    {
      io_context ioc;
      const io_context::executor_type ioc_ex = ioc.get_executor();
      archetypes::lazy_handler lazy;
      asio::error_code ec;
  #if !defined(ASIO_NO_DEPRECATED)
      ip::udp::resolver::query q(ip::udp::v4(), "localhost", "0");
  #endif // !defined(ASIO_NO_DEPRECATED)
      ip::udp::endpoint e(ip::address_v4::loopback(), 0);
  
      // basic_resolver constructors.
  
      ip::udp::resolver resolver(ioc);
      ip::udp::resolver resolver2(ioc_ex);
  
  #if defined(ASIO_HAS_MOVE)
      ip::udp::resolver resolver3(std::move(resolver));
  #endif // defined(ASIO_HAS_MOVE)
  
      // basic_resolver operators.
  
  #if defined(ASIO_HAS_MOVE)
      resolver = ip::udp::resolver(ioc);
      resolver = std::move(resolver3);
  #endif // defined(ASIO_HAS_MOVE)
  
      // basic_io_object functions.
  
      ip::udp::resolver::executor_type ex = resolver.get_executor();
      (void)ex;
  
      // basic_resolver functions.
  
      resolver.cancel();
  
  #if !defined(ASIO_NO_DEPRECATED)
      ip::udp::resolver::results_type results1 = resolver.resolve(q);
      (void)results1;
  
      ip::udp::resolver::results_type results2 = resolver.resolve(q, ec);
      (void)results2;
  #endif // !defined(ASIO_NO_DEPRECATED)
  
      ip::udp::resolver::results_type results3 = resolver.resolve("", "");
      (void)results3;
  
      ip::udp::resolver::results_type results4 = resolver.resolve("", "", ec);
      (void)results4;
  
      ip::udp::resolver::results_type results5 =
        resolver.resolve("", "", ip::udp::resolver::flags());
      (void)results5;
  
      ip::udp::resolver::results_type results6 =
        resolver.resolve("", "", ip::udp::resolver::flags(), ec);
      (void)results6;
  
      ip::udp::resolver::results_type results7 =
        resolver.resolve(ip::udp::v4(), "", "");
      (void)results7;
  
      ip::udp::resolver::results_type results8 =
        resolver.resolve(ip::udp::v4(), "", "", ec);
      (void)results8;
  
      ip::udp::resolver::results_type results9 =
        resolver.resolve(ip::udp::v4(), "", "", ip::udp::resolver::flags());
      (void)results9;
  
      ip::udp::resolver::results_type results10 =
        resolver.resolve(ip::udp::v4(), "", "", ip::udp::resolver::flags(), ec);
      (void)results10;
  
      ip::udp::resolver::results_type results11 = resolver.resolve(e);
      (void)results11;
  
      ip::udp::resolver::results_type results12 = resolver.resolve(e, ec);
      (void)results12;
  
  #if !defined(ASIO_NO_DEPRECATED)
      resolver.async_resolve(q, resolve_handler());
      int i1 = resolver.async_resolve(q, lazy);
      (void)i1;
  #endif // !defined(ASIO_NO_DEPRECATED)
  
      resolver.async_resolve("", "", resolve_handler());
      int i2 = resolver.async_resolve("", "", lazy);
      (void)i2;
  
      resolver.async_resolve("", "",
          ip::udp::resolver::flags(), resolve_handler());
      int i3 = resolver.async_resolve("", "",
          ip::udp::resolver::flags(), lazy);
      (void)i3;
  
      resolver.async_resolve(ip::udp::v4(), "", "", resolve_handler());
      int i4 = resolver.async_resolve(ip::udp::v4(), "", "", lazy);
      (void)i4;
  
      resolver.async_resolve(ip::udp::v4(),
          "", "", ip::udp::resolver::flags(), resolve_handler());
      int i5 = resolver.async_resolve(ip::udp::v4(),
          "", "", ip::udp::resolver::flags(), lazy);
      (void)i5;
  
      resolver.async_resolve(e, resolve_handler());
      int i6 = resolver.async_resolve(e, lazy);
      (void)i6;
    }
    catch (std::exception&)
    {
    }
  }
  
  } // namespace ip_udp_resolver_compile
  
  //------------------------------------------------------------------------------
  
  ASIO_TEST_SUITE
  (
    "ip/udp",
    ASIO_TEST_CASE(ip_udp_socket_compile::test)
    ASIO_TEST_CASE(ip_udp_socket_runtime::test)
    ASIO_TEST_CASE(ip_udp_resolver_compile::test)
  )
  