Ticket #852: test-gcc-boost.cc

#include <iostream>
#include <string>
#include <boost/signal.hpp>
#include <boost/bind.hpp>

typedef boost::signal<void ()> MySignal;

class Test : public boost::signals::trackable {
public:
        Test(const std::string &s, MySignal & sgn);
        void mySlot();
private:
        std::string str;
};

Test::Test(const std::string &s, MySignal & sgn) {
        str = s;
        sgn.connect(boost::bind(&Test::mySlot, this));
}

void Test::mySlot() {
        std::cerr << str << std::endl;
}

int main() {
        MySignal mySgn;
        std::cerr << "create A" << std::endl;
        Test *A = new Test("A", mySgn);
        std::cerr << "fire SGN" << std::endl;
        mySgn();
        std::cerr << "create B" << std::endl;
        Test *B = new Test("B", mySgn);
        std::cerr << "fire SGN" << std::endl;
        mySgn();
        std::cerr << "delete A" << std::endl;
        delete A;
        std::cerr << "fire SGN" << std::endl;
        mySgn();
        std::cerr << "delete B" << std::endl;
        delete B;
        std::cerr << "fire SGN" << std::endl;
        mySgn();

        std::cerr << "exit" << std::endl;
}