implementing constructor

[dilarat]

Hi,

I am learning implementations nowadays and I have problem about that. For example here is my code;

	Matrix(int r1, int c1): r(r1), c(c1) {

		corner = new Mnode();
		Mnode* ptr = corner;
		for(int i = 0; i < c - 1; i++) {
			Mnode* ptr2 = new Mnode();
			ptr->right = ptr2;
			ptr = ptr2;

		}

Constructor of the class Matrix. I do not know when I should write like Matrix() or Matrix::Matrix() is it about namespace, I am so much confused.

Thanks in advance!

edit= I understood something like this: it is about free and member function. But nevertheless I need a clarification