| // Boost.Signals library |
| |
| // Copyright Douglas Gregor 2001-2003. Use, modification and |
| // distribution is subject to 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) |
| |
| // For more information, see http://www.boost.org |
| |
| #include <iostream> |
| #include <boost/signals/signal2.hpp> |
| |
| struct print_sum { |
| void operator()(int x, int y) const { std::cout << x+y << std::endl; } |
| }; |
| |
| struct print_product { |
| void operator()(int x, int y) const { std::cout << x*y << std::endl; } |
| }; |
| |
| |
| int main() |
| { |
| boost::signal2<void, int, int> sig; |
| |
| sig.connect(print_sum()); |
| sig.connect(print_product()); |
| |
| sig(3, 5); // prints 8 and 15 |
| |
| return 0; |
| } |