ceph/src/boost/libs/thread/test/sync/futures/future/share_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 future<R>
  18
  19 // shared_future<R> share() &&;
  20
  21 #define BOOST_THREAD_VERSION 3
  22
  23 #include <boost/thread/future.hpp>
  24 #include <boost/detail/lightweight_test.hpp>
  25
  26 int main()
  27 {
  28
  29   {
  30       typedef int T;
  31       boost::promise<T> p;
  32       boost::future<T> f0 = BOOST_THREAD_MAKE_RV_REF(p.get_future());
  33       boost::shared_future<T> sf = f0.share();
  34       boost::shared_future<T> f = sf;
  35       BOOST_TEST(!f0.valid());
  36       BOOST_TEST(f.valid());
  37   }
  38   {
  39       typedef int T;
  40       boost::future<T> f0;
  41       boost::shared_future<T> sf = f0.share();
  42       boost::shared_future<T> f = sf;
  43       BOOST_TEST(!f0.valid());
  44       BOOST_TEST(!f.valid());
  45   }
  46   {
  47       typedef int& T;
  48       boost::promise<T> p;
  49       boost::future<T> f0 = BOOST_THREAD_MAKE_RV_REF(p.get_future());
  50       boost::shared_future<T> sf = f0.share();
  51       boost::shared_future<T> f = sf;
  52       BOOST_TEST(!f0.valid());
  53       BOOST_TEST(f.valid());
  54   }
  55   {
  56       typedef int& T;
  57       boost::future<T> f0;
  58       boost::shared_future<T> sf = f0.share();
  59       boost::shared_future<T> f = sf;
  60       BOOST_TEST(!f0.valid());
  61       BOOST_TEST(!f.valid());
  62   }
  63   {
  64       typedef void T;
  65       boost::promise<T> p;
  66       boost::future<T> f0 = BOOST_THREAD_MAKE_RV_REF(p.get_future());
  67       boost::shared_future<T> sf = f0.share();
  68       boost::shared_future<T> f = sf;
  69       BOOST_TEST(!f0.valid());
  70       BOOST_TEST(f.valid());
  71   }
  72   {
  73       typedef void T;
  74       boost::future<T> f0;
  75       boost::shared_future<T> sf = f0.share();
  76       boost::shared_future<T> f = sf;
  77       BOOST_TEST(!f0.valid());
  78       BOOST_TEST(!f.valid());
  79   }
  80
  81
  82   return boost::report_errors();
  83 }
  84