// Copyright (C) 2013 Vicente Botet // // 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) #include <boost/config.hpp> #if ! defined BOOST_NO_CXX11_DECLTYPE #define BOOST_RESULT_OF_USE_DECLTYPE #endif #define BOOST_THREAD_VERSION 4 #define BOOST_THREAD_USES_LOG #define BOOST_THREAD_USES_LOG_THREAD_ID #include <boost/thread/detail/log.hpp> #include <boost/thread/future.hpp> #include <boost/assert.hpp> #include <string> #if defined BOOST_THREAD_PROVIDES_FUTURE_CONTINUATION \ && ! defined BOOST_NO_CXX11_LAMBDAS int main() { BOOST_THREAD_LOG << "<MAIN" << BOOST_THREAD_END_LOG; try { { boost::future<int> f1 = boost::async(boost::launch::async, []() {return 123;}); int result = f1.get(); BOOST_THREAD_LOG << "f1 " << result << BOOST_THREAD_END_LOG; } { boost::future<int> f1 = boost::async(boost::launch::async, []() {return 123;}); boost::future<int> f2 = f1.then([](boost::future<int> f) {return 2*f.get(); }); int result = f2.get(); BOOST_THREAD_LOG << "f2 " << result << BOOST_THREAD_END_LOG; } } catch (std::exception& ex) { BOOST_THREAD_LOG << "ERRORRRRR "<<ex.what() << "" << BOOST_THREAD_END_LOG; return 1; } catch (...) { BOOST_THREAD_LOG << " ERRORRRRR exception thrown" << BOOST_THREAD_END_LOG; return 2; } BOOST_THREAD_LOG << "MAIN>" << BOOST_THREAD_END_LOG; return 0; } #else int main() { return 0; } #endif