[c++] typedef class

[ninja9578]

The function is also used, but never defined.

Remember that

class foo {
   void DoSomething(void);
};

void foo::DoSomething(void){
   std::cout << "Hello World" << std::endl;
}

foo * bar;

main(){
   bar -> DoSomething();
}

Is undefined behavior, but stable on almost every compiler.

Also, why do statically declared pointers initialize to zero? Seems like a waste of a mov command to me. I always do this

foo * bar = 0;

If I want to know if the pointer has been initialized or not later. If I omit the zero, I don't care what it is.