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 <exception> 9 #include <iostream> 10 #include <stdexcept> 11 #include <string> 12 13 #include <boost/context/continuation.hpp> 14 15 namespace ctx = boost::context; 16 17 struct my_exception : public std::runtime_error { 18 ctx::continuation c; my_exceptionmy_exception19 my_exception( ctx::continuation && c_, std::string const& what) : 20 std::runtime_error{ what }, 21 c{ std::move( c_) } { 22 } 23 }; 24 main()25int main() { 26 ctx::continuation c = ctx::callcc([](ctx::continuation && c) { 27 for (;;) { 28 try { 29 std::cout << "entered" << std::endl; 30 c = c.resume(); 31 } catch ( my_exception & ex) { 32 std::cerr << "my_exception: " << ex.what() << std::endl; 33 return std::move( ex.c); 34 } 35 } 36 return std::move( c); 37 }); 38 c = c.resume_with( 39 [](ctx::continuation && c){ 40 throw my_exception(std::move( c), "abc"); 41 return std::move( c); 42 }); 43 44 std::cout << "main: done" << std::endl; 45 46 return EXIT_SUCCESS; 47 } 48