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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/continuation.hpp> | |
12 | ||
13 | namespace ctx = boost::context; | |
14 | ||
15 | int main() { | |
16 | int data = 0; | |
17 | ctx::continuation c = ctx::callcc( [&data](ctx::continuation && c) { | |
18 | std::cout << "f1: entered first time: " << data << std::endl; | |
19 | data += 1; | |
20 | c = c.resume(); | |
21 | std::cout << "f1: entered second time: " << data << std::endl; | |
22 | data += 1; | |
23 | c = c.resume(); | |
24 | std::cout << "f1: entered third time: " << data << std::endl; | |
25 | return std::move( c); | |
26 | }); | |
27 | std::cout << "f1: returned first time: " << data << std::endl; | |
28 | data += 1; | |
29 | c = c.resume(); | |
30 | std::cout << "f1: returned second time: " << data << std::endl; | |
31 | data += 1; | |
32 | c = c.resume_with( [&data](ctx::continuation && c){ | |
33 | std::cout << "f2: entered: " << data << std::endl; | |
34 | data = -1; | |
35 | return std::move( c); | |
36 | }); | |
37 | std::cout << "f1: returned third time" << std::endl; | |
38 | std::cout << "main: done" << std::endl; | |
39 | return EXIT_SUCCESS; | |
40 | } |