Me again! This time adding to the linked list

Creating the function to add to the end of the list now, here's the code:

Code:

void CList::add(CNode *pRoot, std::string input) // function to add a new node at the end
{
	CNode *pPointer;
	pPointer = pRoot;

	if(pPointer != 0)
	{
		while(pPointer->pNext != 0)
		{
			pPointer = pPointer->pNext;
		}
	}

	pPointer->pNext = new CNode;
	pPointer = pPointer->pNext;
	pPointer->pNext = 0;
	pPointer->name = input;

}

Now i'm pretty proud of that, as it's the best looking code i've probably ever written, lol, except that i get some weird error:

CList.obj : error LNK2019: unresolved external symbol "public: __thiscall CNode::CNode(void)" (??0CNode@@QAE@XZ) referenced in function "public: void __thiscall CList::add(class CNode *,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?add@CList@@QAEXPAVCNode@@V?$basic_string@DU?$cha r_traits@D@std@@V?$allocator@D@2@@std@@@Z)
Debug\Linked List.exe : fatal error LNK1120: 1 unresolved externals

It looks to me as if it should work fine, but as usual i'm completely baffled, and im asking you guys on here to help me, hehe, thanks a million

P.S. do you need the header files code? the prototypes match so i dont see how it's anything to do with them

hmm... could it be that you declared CNode::CNode() but never implemented it?

yes it would, thank you very much