1 2 // Copyright Oliver Kowalke 2009. 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 <boost/coroutine/all.hpp> 8 9 #include <cstdlib> 10 #include <iostream> 11 12 #include <boost/bind.hpp> 13 14 struct X : private boost::noncopyable 15 { XX16 X() { std::cout << "X()" << std::endl; } ~XX17 ~X() { std::cout << "~X()" << std::endl; } 18 }; 19 20 typedef boost::coroutines::symmetric_coroutine< void > coro_t; 21 22 coro_t::call_type * c1 = 0; 23 coro_t::call_type * c2 = 0; 24 foo(coro_t::yield_type & yield)25void foo( coro_t::yield_type & yield) 26 { 27 X x; 28 std::cout << "foo() entered" << std::endl; 29 yield( * c2); 30 yield( * c2); 31 std::cout << "foo() finished" << std::endl; 32 } 33 bar(coro_t::yield_type & yield)34void bar( coro_t::yield_type & yield) 35 { 36 std::cout << "bar() entered" << std::endl; 37 yield( * c1); 38 std::cout << "bar() finished" << std::endl; 39 } 40 main(int argc,char * argv[])41int main( int argc, char * argv[]) 42 { 43 coro_t::call_type coro1( foo); 44 coro_t::call_type coro2( bar); 45 c1 = & coro1; 46 c2 = & coro2; 47 coro1(); 48 std::cout << "Done" << std::endl; 49 50 return EXIT_SUCCESS; 51 } 52