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BirdLeon
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ROBLOX2016
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Library/boost/libs/context/example/callcc/jump.cpp
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19 дек 2024, 19:11
19 дек 2024, 19:11
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// Copyright Oliver Kowalke 2016. // 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 <cstdlib> #include <iostream> #include <boost/context/continuation.hpp> namespace ctx = boost::context; int main() { ctx::continuation c; int data = 1; c = ctx::callcc( [&data](ctx::continuation && c){ std::cout << "entered first time: " << data << std::endl; data += 2; c = c.resume(); std::cout << "entered second time: " << data << std::endl; return std::move( c); }); std::cout << "returned first time: " << data << std::endl; data += 2; c = c.resume(); if ( c) { std::cout << "returned second time: " << data << std::endl; } else { std::cout << "returned second time: execution context terminated" << std::endl; } std::cout << "main: done" << std::endl; return EXIT_SUCCESS; }