Creating an array of pointers

[arena]

Hey everyone. I'm new around here. I need to create an array of class pointers, and I'm stuck.

I have currently tried the following:

	dispenserType *p;				// create class pointer object
	p = new dispenserType[4];		// make class pointer object into an array
	dispenserType one(100, 50);
	p[0] = &one;

I have tried this a few different ways, but I see no way to make this happen (I get an error every time I try to assign the objects). How can I do an array of pointer-class objects?

[kempofighter]

p[0] = &one; is a memory leak. you already created a dynamic array of 4 objects. What is the specific error? Please provide a more complete example, give us the error message, and tell us which line of code is resulting in the error.

[arena]

Well I think I understand that the dynamic array has been created. My question is, how do I assign objects to these memory spaces?

** Never mind. Removing the & operator seems to have resolved this issue. Many thanks =D

[kempofighter]

The assignment that you showed actually looked correct in terms of the assignment so what you are saying just doesn't make sense.

Did you see this tutorial? I believe that the new statement already default constructed 4 dispensorType objects. Therefore assigning to p[0] as you had done is not only a memory leak but also dangerous since it appears that you overwrite the pointer to dynamic memory with a pointer to stack memory.
http://www.cplusplus.com/doc/tutorial/dynamic/

[filipe]

kempofighter wrote:

The assignment that you showed actually looked correct in terms of the assignment

Correct me if I'm wrong, but p points to an array of objects of type dispenserType rather than dispenserType* (as the title of this thread would suggest), which means p[0] is not a pointer.

[kempofighter]

Right - I guess I need to go read the tutorial. I guess that is why I avoid using operator new for dynamic arrays. It is a little confusing.