text: //
  // signal_set.cpp
  // ~~~~~~~~~~~~~~
  //
  // Copyright (c) 2003-2017 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 <boost/asio/signal_set.hpp>
  
  #include "archetypes/async_result.hpp"
  #include <boost/asio/io_context.hpp>
  #include "unit_test.hpp"
  
  //------------------------------------------------------------------------------
  
  // signal_set_compile test
  // ~~~~~~~~~~~~~~~~~~~~~~~
  // The following test checks that all public member functions on the class
  // signal_set compile and link correctly. Runtime failures are ignored.
  
  namespace signal_set_compile {
  
  void signal_handler(const boost::system::error_code&, int)
  {
  }
  
  void test()
  {
    using namespace boost::asio;
  
    try
    {
      io_context ioc;
      archetypes::lazy_handler lazy;
      boost::system::error_code ec;
  
      // basic_signal_set constructors.
  
      signal_set set1(ioc);
      signal_set set2(ioc, 1);
      signal_set set3(ioc, 1, 2);
      signal_set set4(ioc, 1, 2, 3);
  
      // basic_io_object functions.
  
      signal_set::executor_type ex = set1.get_executor();
      (void)ex;
  
  #if !defined(BOOST_ASIO_NO_DEPRECATED)
      io_context& ioc_ref = set1.get_io_context();
      (void)ioc_ref;
  
      io_context& ioc_ref2 = set1.get_io_service();
      (void)ioc_ref2;
  #endif // !defined(BOOST_ASIO_NO_DEPRECATED)
  
      // basic_signal_set functions.
  
      set1.add(1);
      set1.add(1, ec);
  
      set1.remove(1);
      set1.remove(1, ec);
  
      set1.clear();
      set1.clear(ec);
  
      set1.cancel();
      set1.cancel(ec);
  
      set1.async_wait(&signal_handler);
      int i = set1.async_wait(lazy);
      (void)i;
    }
    catch (std::exception&)
    {
    }
  }
  
  } // namespace signal_set_compile
  
  //------------------------------------------------------------------------------
  
  BOOST_ASIO_TEST_SUITE
  (
    "signal_set",
    BOOST_ASIO_TEST_CASE(signal_set_compile::test)
  )
  