Hi

why this code works?

#include <iostream>

class A {
public:
void foo() {std::cout << "hi" << std::endl; };
};

void MakeA(A *pA) { pA = new A; }

int main() {
A* pA = NULL;
Make(pA);
pA->foo();
delete pA;

return 0;
}

And... why ((A*)NULL)->foo() works too?

Thanks in advance.