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arangodb/3rdParty/boost/1.62.0/libs/context/example/v1/jump.cpp

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// Copyright Oliver Kowalke 2014.
// 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/all.hpp>
boost::context::execution_context * ctx1 = nullptr;
boost::context::execution_context * ctx2 = nullptr;
boost::context::execution_context * ctx = nullptr;
void f1( int i, void *) {
std::cout << "f1: entered" << std::endl;
std::cout << "i == " << i << std::endl;
( * ctx2)();
std::cout << "f1: re-entered" << std::endl;
( * ctx2)();
}
void f2( void *) {
std::cout << "f2: entered" << std::endl;
( * ctx1)();
std::cout << "f2: re-entered" << std::endl;
( * ctx)();
}
int main() {
{
boost::context::execution_context ctx1_( f1, 3);
ctx1 = & ctx1_;
boost::context::execution_context ctx2_( f2);
ctx2 = & ctx2_;
boost::context::execution_context ctx_( boost::context::execution_context::current() );
ctx = & ctx_;
( * ctx1)();
}
std::cout << "main: done" << std::endl;
return EXIT_SUCCESS;
}