Vector as a class member

[eytanfb]

I have an assignment where I have two objects, and one of them has a vector as a member. I have to operate with the vector, both in the other object and in main, but I couldn't figure out how to do it.

I think I should copy the vector outside the private but then I couldn't figure out how to do that too.

Thanks for any help.

[Bazzy]

You can access class members like this:
object.member

if it's private, you can write a getter function:
object.get_member();

[Mythios]

This should help you out a little:

#include <iostream>
#include <vector>

class Object
{
	public:
		Object()
		{}
		~Object()
		{}
		void AddInt(int num)
		{
			m_VectorOfInts.push_back(num);
		}
		std::vector<int> GetCopyOfVector()
		{
			return m_VectorOfInts;
		}
		void DisplayVectorContents()
		{
			for( unsigned int i = 0; i < m_VectorOfInts.size(); i++ )
			{
				std::cout << "Element[" << i << "] = " << m_VectorOfInts[i] << std::endl;
			}
			std::cout << std::endl;
		}

	private:
		std::vector<int> m_VectorOfInts;
};

int main()
{
	// Create our class an add a few ints
	Object obj;
	obj.AddInt(32);
	obj.AddInt(56);
	obj.AddInt(21);

	// Display the vector contents so far
	obj.DisplayVectorContents();

	// Creates a copy of the classes container you can only really view whats in 
	// the classes vector container. What ever changes you make here wont effect the class.
	std::vector<int> container1 = obj.GetCopyOfVector();
	// These elements wont be added as it's a copy of the container
	container1.push_back(342);
	container1.push_back(64);
	container1.push_back(123);


	// Display the classes container to see show nothing was added.
	obj.DisplayVectorContents();

	return 0;
}

[eytanfb]

Thanks a lot. This helped a lot.

[Mythios]

No problem.