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ROBLOX2016
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Library/boost/libs/thread/test/test_9711.cpp
44 строки
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19 дек 2024, 19:11
19 дек 2024, 19:11
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// Copyright (C) 2014 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) #define BOOST_THREAD_PROVIDES_FUTURE #define BOOST_THREAD_PROVIDES_FUTURE_CONTINUATION #include <boost/config.hpp> #if ! defined BOOST_NO_CXX11_DECLTYPE #define BOOST_RESULT_OF_USE_DECLTYPE #endif #include <boost/thread/future.hpp> int main() { #if ! defined BOOST_NO_CXX11_LAMBDAS && ! (defined BOOST_MSVC && _MSC_VER < 1700) boost::promise<int> prom; boost::future<int> futr = prom.get_future(); int callCount = 0; boost::future<void> futr2 = futr.then(boost::launch::deferred, [&] (boost::future<int> f) { callCount++; assert(f.valid()); assert(f.is_ready()); assert(17 == f.get()); }); assert(futr2.valid()); assert(!futr2.is_ready()); assert(0 == callCount); prom.set_value(17); assert(0 == callCount); futr2.get(); assert(1 == callCount); #endif return 0; }