Why does this work?

[Werpd]

A dynamic object but we assign it the value NULL...So our object is NULL but we can still call the member function showthis() and it works, but why?

#include <iostream>

class myc
{
public:
myc() {}
~myc() {}
void showthis() const {std::cout<<"Hello, World!"<<"\n";}
private:
};

int main(int argc, char**argv)
{
myc *thec = (myc*)NULL;

std::cout<<"address of thec->"<<(void*)thec<<"\n";
thec->showthis();

return 0;
}