//main.cpp
#include <stdio.h>
#include <time.h>
#include <typeinfo.h>
struct Virt { virtual int get(); };
struct VirtSub : public Virt { int get();};
struct NonVirt {int get();};
struct NonVirtSub : public NonVirt {int get();};
Virt *virt();
VirtSub *virtsub() ;
NonVirt *nonvirt() ;
NonVirtSub *nonvirtsub() ;
template<class T> void m(T *t) {
clock_t c = clock();
for (int i=0; i<100000000; ++i) t->get();
c = clock() - c;
printf("%s:%u\n", typeid(t).name(), (unsigned)c);
}
int main() {
m(virt());
m((Virt*)virtsub());
m(virtsub());
m(nonvirt());
m((NonVirt*)nonvirtsub());
m(nonvirtsub());
return 0;
}