ceph/src/boost/libs/thread/test/sync/futures/promise/set_value_at_thread_exit_const_pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 // Copyright (C) 2011 Vicente J. Botet Escriba
  11 //
  12 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
  13 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  14
  15 // <boost/thread/future.hpp>
  16
  17 // class promise<R>
  18
  19 // void promise::set_value_at_thread_exit(const R& r);
  20
  21 #define BOOST_THREAD_VERSION 4
  22
  23 #include <boost/thread/future.hpp>
  24 #include <boost/detail/lightweight_test.hpp>
  25
  26 #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
  27 void func(boost::promise<int> p)
  28 #else
  29 boost::promise<int> p;
  30 void func()
  31 #endif
  32 {
  33   const int i = 5;
  34   p.set_value_at_thread_exit(i);
  35 }
  36
  37 int main()
  38 {
  39   {
  40 #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
  41     boost::promise<int> p;
  42     boost::future<int> f = p.get_future();
  43     boost::thread(func, boost::move(p)).detach();
  44 #else
  45     boost::future<int> f = p.get_future();
  46     boost::thread(func).detach();
  47 #endif
  48     try
  49     {
  50       BOOST_TEST(f.get() == 5);
  51     }
  52     catch (...)
  53     {
  54       BOOST_TEST(false);
  55     }
  56   }
  57   {
  58 #if defined BOOST_THREAD_PROVIDES_SIGNATURE_PACKAGED_TASK && defined(BOOST_THREAD_PROVIDES_VARIADIC_THREAD)
  59 #else
  60     boost::promise<int> p2;
  61     boost::future<int> f = p2.get_future();
  62     p = boost::move(p2);
  63     boost::thread(func).detach();
  64     BOOST_TEST(f.get() == 5);
  65 #endif
  66   }
  67   return boost::report_errors();
  68 }
  69