CMake/Tests/FindGTK2/sigc++/main.cpp

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// Taken from https://developer.gnome.org/libsigc++-tutorial/stable/ch02.html
#include <sigc++/sigc++.h>
#include <iostream>
class AlienDetector
{
public:
AlienDetector() {}
void run() {}
sigc::signal<void> signal_detected;
};
void warn_people()
{
std::cout << "There are aliens in the carpark!" << std::endl;
}
int main()
{
AlienDetector mydetector;
mydetector.signal_detected.connect( sigc::ptr_fun(warn_people) );
mydetector.run();
return 0;
}