Can I pass a NEW object into a function by-ref & without a delete? [C++]

[Shaitan00]

I want to pass an object by reference into a function (of another class), can this be done without causing a memory leak or requiring me to perform a delete?

 

Allow me to illustrate what I mean ...

class A

{

vector<B*> v;	// vector of pointers to Class B objects



void Add(B &b)	// function to add pointers to vector

  {

  v.push_back(b);

  }

~A {... delete everything from the vector ...}

};



class B

{

... some stuff ...

};



void main()

{

A *a;	// pointer to instance of A

a = new A();

a->Add(new B());

}

[/COde]

 

So, the question is for the following line in particular:

a->Add(new B());

In this case I create a new Instance of B() which is passed (by reference) to the A.Add() function ... Can I do this or will it cause a memory leak? Also will the vector in A() have a correct pointer to the object created and passed in?

 

My goal is to simply pass the instance to Class A without making the vector public and accessing it directly...

 

Let me know if that makes any sense...

Thanks,

Edited June 20, 2009 by Shaitan00

[Shaitan00]

If I make the following code-changes it compiles and seems to work ... but is there a memory leak due to my "NEW" inside of MAIN?

 

void Add(B *b)	// function to add pointers to vector

[/Code]