context/example/fiber/fibonacci.cpp
2018-02-09 17:27:35 +01:00

37 lines
859 B
C++

// 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 <memory>
#include <boost/context/fiber.hpp>
namespace ctx = boost::context;
int main() {
int a;
ctx::fiber f{
[&a](ctx::fiber && f){
a=0;
int b=1;
for(;;){
f = std::move( f).resume();
int next=a+b;
a=b;
b=next;
}
return std::move( f);
}};
for ( int j = 0; j < 10; ++j) {
f = std::move( f).resume();
std::cout << a << " ";
}
std::cout << std::endl;
std::cout << "main: done" << std::endl;
return EXIT_SUCCESS;
}