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// 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/range.hpp>
void fibonacci( boost::coroutines::asymmetric_coroutine< int >::push_type & sink)
{
int first = 1, second = 1;
sink( first);
sink( second);
while ( true)
{
int third = first + second;
first = second;
second = third;
sink( third);
}
}
int main()
{
boost::coroutines::asymmetric_coroutine< int >::pull_type source( fibonacci);
boost::range_iterator<
boost::coroutines::asymmetric_coroutine< int >::pull_type
>::type it( boost::begin( source) );
for ( int i = 0; i < 10; ++i)
{
std::cout << * it << " ";
++it;
}
std::cout << "\nDone" << std::endl;
return EXIT_SUCCESS;
}
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