class composition

**kwstas_a** · 12-22-2014

I have created a class like that:

Code:

class Visitor
{
    private:
        int* a;
    public:
        Visitor()
        {
            a=new int[3];
            a[0]=rand()%4 +1;
            a[1]=rand()%10 +1;
            pl++;
            a[2]=pl;
        }


};

and now i want to create another class which takes pointers of type Visitor.How could i do that?And in main how could i pass a pointer of type Visitor to an object from another class?Thank you.

**Elysia** · 12-22-2014

To your question:

Code:

class A {};
class B { public: A* PointerToA;  void foo(A*) {} };

int main()
{
	A a;
	A* pA = new A;
	B b;
	b.PointerToA = &a;
	b.PointerToA = pA;
	b.foo(&a);
	b.foo(pA);
}

You really shouldn't be using new, though. For arrays, use std::vector or std::array.

Thread: class composition

Thread Tools

Search Thread

Display

class composition

Similar Threads

Composition,private Class member variables and methods

help with my class-composition, i am noob

Composition

class composition constructor question...

Trouble with overloading operators in a class with composition relationship