text: //===----------------------------------------------------------------------===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is dual licensed under the MIT and the University of Illinois Open
  // Source Licenses. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  // Copyright (C) 2014 Vicente J. Botet Escriba
  //
  //  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)
  
  // <boost/thread/future.hpp>
  
  // template <class T, class Ts>
  // future<tuple<T, Ts...>> when_all(T&&, Ts&& ...);
  
  #include <boost/config.hpp>
  
  #if ! defined  BOOST_NO_CXX11_DECLTYPE
  #define BOOST_RESULT_OF_USE_DECLTYPE
  #endif
  
  
  #define BOOST_THREAD_VERSION 4
  
  #include <boost/thread/future.hpp>
  #include <boost/detail/lightweight_test.hpp>
  #include <stdexcept>
  
  int p1()
  {
    boost::this_thread::sleep_for(boost::chrono::milliseconds(100));
    return 123;
  }
  
  int thr()
  {
    throw std::logic_error("123");
  }
  int p2()
  {
    boost::this_thread::sleep_for(boost::chrono::milliseconds(200));
    return 321;
  }
  
  int main()
  {
  #if defined BOOST_THREAD_PROVIDES_FUTURE_WHEN_ALL_WHEN_ANY
    if (0) // todo not yet implemented
    { // invalid future copy-constructible
      boost::future<int> f1;
      boost::future<int> f2 = boost::make_ready_future(321);
      BOOST_TEST(! f1.valid());
      BOOST_TEST(f2.valid());
      boost::future<boost::csbl::tuple<boost::future<int>,boost::future<int> > > all = boost::when_all(boost::move(f1), boost::move(f2));
      BOOST_TEST(! f1.valid());
      BOOST_TEST(! f2.valid());
      BOOST_TEST(all.valid());
      boost::csbl::tuple<boost::future<int>,boost::future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      // has exception
      //BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
    { // is_ready future copy-constructible
      boost::future<int> f1 = boost::make_ready_future(123);
      boost::future<int> f2 = boost::make_ready_future(321);
      BOOST_TEST(f1.valid());
      BOOST_TEST(f1.is_ready());
      BOOST_TEST(f2.valid());
      BOOST_TEST(f2.is_ready());
      boost::future<boost::csbl::tuple<boost::future<int>,boost::future<int> > > all = boost::when_all(boost::move(f1), boost::move(f2));
      BOOST_TEST(! f1.valid());
      BOOST_TEST(! f2.valid());
      BOOST_TEST(all.valid());
      if (0) // todo FAILS not yet implemented
      BOOST_TEST(all.is_ready());
      boost::csbl::tuple<boost::future<int>,boost::future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
    { // is_ready shared_future copy-constructible
      boost::shared_future<int> f1 = boost::make_ready_future(123).share();
      boost::shared_future<int> f2 = boost::make_ready_future(321).share();
      BOOST_TEST(f1.valid());
      BOOST_TEST(f1.is_ready());
      BOOST_TEST(f2.valid());
      BOOST_TEST(f2.is_ready());
      boost::future<boost::csbl::tuple<boost::shared_future<int>,boost::shared_future<int> > > all = boost::when_all(f1, f2);
      BOOST_TEST(f1.valid());
      BOOST_TEST(f2.valid());
      BOOST_TEST(all.valid());
      if (0) // todo FAILS not yet implemented
      BOOST_TEST(all.is_ready());
      boost::csbl::tuple<boost::shared_future<int>,boost::shared_future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
    { // packaged_task future copy-constructible
      boost::packaged_task<int()> pt1(&p1);
      boost::future<int> f1 = pt1.get_future();
      BOOST_TEST(f1.valid());
      boost::packaged_task<int()> pt2(&p2);
      boost::future<int> f2 = pt2.get_future();
      BOOST_TEST(f2.valid());
      boost::future<boost::csbl::tuple<boost::future<int>,boost::future<int> > > all = boost::when_all(boost::move(f1), boost::move(f2));
      BOOST_TEST(! f1.valid());
      BOOST_TEST(! f2.valid());
      BOOST_TEST(all.valid());
      pt1();
      pt2();
      boost::csbl::tuple<boost::future<int>,boost::future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
    { // packaged_task future copy-constructible
      boost::packaged_task<int()> pt1(&thr);
      boost::future<int> f1 = pt1.get_future();
      BOOST_TEST(f1.valid());
      boost::packaged_task<int()> pt2(&p2);
      boost::future<int> f2 = pt2.get_future();
      BOOST_TEST(f2.valid());
      boost::future<boost::csbl::tuple<boost::future<int>,boost::future<int> > > all = boost::when_all(boost::move(f1), boost::move(f2));
      BOOST_TEST(! f1.valid());
      BOOST_TEST(! f2.valid());
      BOOST_TEST(all.valid());
      pt1();
      pt2();
      boost::csbl::tuple<boost::future<int>,boost::future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      try {
        boost::csbl::get<0>(res).get();
        BOOST_TEST(false);
      } catch (std::logic_error& ex) {
        BOOST_TEST(ex.what() == std::string("123"));
      } catch (...) {
        BOOST_TEST(false);
      }
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
    { // packaged_task shared_future copy-constructible
      boost::packaged_task<int()> pt1(&p1);
      boost::shared_future<int> f1 = pt1.get_future().share();
      BOOST_TEST(f1.valid());
      boost::packaged_task<int()> pt2(&p2);
      boost::shared_future<int> f2 = pt2.get_future().share();
      BOOST_TEST(f2.valid());
      boost::future<boost::csbl::tuple<boost::shared_future<int>,boost::shared_future<int> > > all = boost::when_all(f1, f2);
      BOOST_TEST(f1.valid());
      BOOST_TEST(f2.valid());
      BOOST_TEST(all.valid());
      BOOST_TEST(! all.is_ready());
      pt1();
      BOOST_TEST(! all.is_ready());
      pt2();
      boost::this_thread::sleep_for(boost::chrono::milliseconds(300));
      BOOST_TEST(all.is_ready());
      boost::csbl::tuple<boost::shared_future<int>,boost::shared_future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
    { // async future copy-constructible
      boost::future<int> f1 = boost::async(boost::launch::async, &p1);
      BOOST_TEST(f1.valid());
      boost::future<int> f2 = boost::async(boost::launch::async, &p2);
      BOOST_TEST(f2.valid());
      boost::future<boost::csbl::tuple<boost::future<int>,boost::future<int> > > all = boost::when_all(boost::move(f1), boost::move(f2));
      BOOST_TEST(! f1.valid());
      BOOST_TEST(! f2.valid());
      BOOST_TEST(all.valid());
      boost::csbl::tuple<boost::future<int>,boost::future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
    { // async shared_future copy-constructible
      boost::shared_future<int> f1 = boost::async(boost::launch::async, &p1).share();
      BOOST_TEST(f1.valid());
      boost::shared_future<int> f2 = boost::async(boost::launch::async, &p2).share();
      BOOST_TEST(f2.valid());
      boost::future<boost::csbl::tuple<boost::shared_future<int>,boost::shared_future<int> > > all = boost::when_all(f1, f2);
      BOOST_TEST(f1.valid());
      BOOST_TEST(f2.valid());
      BOOST_TEST(all.valid());
      boost::csbl::tuple<boost::shared_future<int>,boost::shared_future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
    { // async future copy-constructible
      boost::future<int> f1 = boost::async(boost::launch::async, &p1);
      BOOST_TEST(f1.valid());
      boost::future<int> f2 = boost::make_ready_future(321);
      BOOST_TEST(f2.valid());
      BOOST_TEST(f2.is_ready());
      boost::future<boost::csbl::tuple<boost::future<int>,boost::future<int> > > all = boost::when_all(boost::move(f1), boost::move(f2));
      BOOST_TEST(! f1.valid());
      BOOST_TEST(! f2.valid());
      BOOST_TEST(all.valid());
      boost::csbl::tuple<boost::future<int>,boost::future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
  #if ! defined BOOST_NO_CXX11_DECLTYPE_N3276
    // fixme darwin-4.8.0_11 terminate called without an active exception
    { // deferred future copy-constructible
      boost::future<int> f1 = boost::async(boost::launch::deferred, &p1);
      boost::future<int> f2 = boost::async(boost::launch::deferred, &p2);
      boost::future<boost::csbl::tuple<boost::future<int>,boost::future<int> > > all = boost::when_all(boost::move(f1), boost::move(f2));
      BOOST_TEST(! f1.valid());
      BOOST_TEST(! f2.valid());
      BOOST_TEST(all.valid());
      boost::csbl::tuple<boost::future<int>,boost::future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
    // fixme darwin-4.8.0_11 terminate called without an active exception
    { // deferred shared_future copy-constructible
      boost::shared_future<int> f1 = boost::async(boost::launch::deferred, &p1).share();
      boost::shared_future<int> f2 = boost::async(boost::launch::deferred, &p2).share();
      boost::future<boost::csbl::tuple<boost::shared_future<int>,boost::shared_future<int> > > all = boost::when_all(f1, f2);
      BOOST_TEST(f1.valid());
      BOOST_TEST(f2.valid());
      BOOST_TEST(all.valid());
      boost::csbl::tuple<boost::shared_future<int>,boost::shared_future<int> > res = all.get();
      BOOST_TEST(boost::csbl::get<0>(res).valid());
      BOOST_TEST(boost::csbl::get<0>(res).is_ready());
      BOOST_TEST(boost::csbl::get<1>(res).valid());
      BOOST_TEST(boost::csbl::get<1>(res).is_ready());
      BOOST_TEST(boost::csbl::get<0>(res).get() == 123);
      BOOST_TEST(boost::csbl::get<1>(res).get() == 321);
    }
  #endif
  #if ! defined BOOST_NO_CXX11_LAMBDAS
      { // async futures copy-constructible then()
        boost::future<int> f1 = boost::async(boost::launch::async, &p1);
        BOOST_TEST(f1.valid());
        boost::future<int> f2 = boost::async(boost::launch::async, &p2);
        BOOST_TEST(f2.valid());
        boost::future<boost::csbl::tuple<boost::future<int>,boost::future<int> > > all = boost::when_all(boost::move(f1), boost::move(f2));
        BOOST_TEST(! f1.valid());
        BOOST_TEST(! f2.valid());
        BOOST_TEST(all.valid());
        boost::future<int> sum = all.then([](boost::future<boost::csbl::tuple<boost::future<int>, boost::future<int> > > f)
        {
          boost::csbl::tuple<boost::future<int>,boost::future<int> > v = f.get();
          return boost::csbl::get<0>(v).get()+boost::csbl::get<1>(v).get();
        });
        BOOST_TEST(sum.valid());
        BOOST_TEST(sum.get() == 444);
      }
  #endif
  #endif
  
    return boost::report_errors();
  }
  
  