Thread: Basic Pointer Help

Hi all,

I'm having a problem in some code and I think it's because I've misunderstood how pointers are supposed to work. I've read the tutorials but perhaps I haven't understood them correctly. My aim is to post some code, explain what I think is supposed to happen and then maybe one of you lovely people could explain why it does not?

Code:

class MyClass
{
     public:
              int count;
              int GetCount();
              void AddOne();
}

MyClass foo;

//this should point bar to the rvalue of foo?
MyClass *bar = &foo;

//this vector now holds the object foo
vector.push_back(foo);

//this should add 1 to count inside foo because above I declared bar as a pointer to foo.  The operations that I perform on bar should be done on foo as I told bar to point to the addressof foo

bar->AddOne();


for(int i = 0; i < vector.size(); i++)
{
   //I want this to call foo.GetCount which was updated by bar.AddOne()
   vector[i].GetCount();
}

Just to say that this is pseudo code to try and demonosrate the point. You can presume that AddOne actually adds one to count and vector is a correct lvalue and the like.

Does foo being inside a data structure matter to bar->AddOne()? More likely, have I got the wrong idea here?

Thanks in advance.