1
2// Copyright Oliver Kowalke 2016.
3// Distributed under the Boost Software License, Version 1.0.
4// (See accompanying file LICENSE_1_0.txt or copy at
5// http://www.boost.org/LICENSE_1_0.txt)
6
7#include <cstdlib>
8#include <iostream>
9#include <tuple>
10
11#include <boost/context/fiber.hpp>
12
13namespace ctx = boost::context;
14
15ctx::fiber f1( ctx::fiber && f) {
16 std::cout << "f1: entered first time" << std::endl;
17 f = std::move( f).resume();
18 std::cout << "f1: entered second time" << std::endl;
19 f = std::move( f).resume();
20 std::cout << "f1: entered third time" << std::endl;
21 return std::move( f);
22}
23
24ctx::fiber f2( ctx::fiber && f) {
25 std::cout << "f2: entered" << std::endl;
26 return std::move( f);
27}
28
29int main() {
30 ctx::fiber f{ f1 };
31 f = std::move( f).resume();
32 std::cout << "f1: returned first time" << std::endl;
33 f = std::move( f).resume();
34 std::cout << "f1: returned second time" << std::endl;
35 f = std::move( f).resume_with( fn&: f2);
36 std::cout << "f1: returned third time" << std::endl;
37
38 std::cout << "main: done" << std::endl;
39
40 return EXIT_SUCCESS;
41}
42

source code of boost/libs/context/example/fiber/ontop_void.cpp