coroutine/example/asymmetric/unwind.cpp
Nikita Kniazev 3bc66cbb94 Move library include to the top
This helps ensure that library inclusion is self sustainable
2019-11-24 21:49:24 +03:00

46 lines
1010 B
C++

// Copyright Oliver Kowalke 2009.
// 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/coroutine/all.hpp>
#include <cstdlib>
#include <iostream>
#include <boost/bind.hpp>
struct X : private boost::noncopyable
{
X() { std::cout << "X()" << std::endl; }
~X() { std::cout << "~X()" << std::endl; }
};
void fn( boost::coroutines::asymmetric_coroutine< void >::push_type & sink)
{
X x;
int i = 0;
while ( true)
{
std::cout << "fn() : " << ++i << std::endl;
sink();
}
}
int main( int argc, char * argv[])
{
{
boost::coroutines::asymmetric_coroutine< void >::pull_type source( fn);
for ( int k = 0; k < 3; ++k)
{
source();
}
std::cout << "destroying coroutine and unwinding stack" << std::endl;
}
std::cout << "\nDone" << std::endl;
return EXIT_SUCCESS;
}