template Probleme

[sirniko]

Hi,
ich versuche gerade, eine einfach verkettete Liste als Template zu erstellen. Diese soll von der Template-Klasse Liste abgeleitet sein.

Mein Code sieht wie folgt aus:

#if !defined(AFX_LIST_H__ACE3FD8F_B06F_4A79_9410_B1FA825F62E1__INCLUDED_)
#define AFX_LIST_H__ACE3FD8F_B06F_4A79_9410_B1FA825F62E1__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "SingleChainedList.h"

template <class T>
class List  
{
private:
	class Iterator;
//**********************************************
	template <class T>
	class ListElement
	{
	private:
	public:
		T Data;

		ListElement<T>* Next;

		ListElement()
		{

		}
		~ListElement()
		{

		}
//		ListElement(T data);

	};
//**********************************************
	class Iterator
	{
	private:
		ListElement* It; 	
	public:
		bool operator != (Iterator iterator)
		{
			if (iterator.It != It)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		bool operator == (Iterator iterator)
		{
			if (iterator.It == It)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		Iterator& operator++()  // preincrement
		{
			(*this).It = (*(this)->It).Next.It;
			return *this;
		}
		void operator=(Iterator value)
		{
			this->It = value.It;
		}
		T& operator*()
		{
			return &(It->Data);
		}

		T* operator->()
		{
			return &(It->Data);	//Adresse??
		}

		Iterator(T* param = 0)
		{
			It = param;
		}
		~Iterator ()
		{

		}

	friend class List<T>;
	};
//**********************************************

public:	
	ListElement<T>* First;
	ListElement<T>* Last;

	Iterator& GetFirst()
	{
		return First;	
	}
	static Iterator& GetLast()
	{
		return Last;
	}
//		static Iterator& end()
//		{
//			return ScreenObject::itEnd;
//		}

	virtual void Append (T data) = 0;
	virtual void Clear (); 
	List()
	{
		First = 0;
		Last = 0;
	}
	virtual ~List()
	{

	}
};

#endif // !defined(AFX_LIST_H__ACE3FD8F_B06F_4A79_9410_B1FA825F62E1__INCLUDED_)

// SingleChainedList.h: interface for the SingleChainedList class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_SINGLECHAINEDLIST_H__B6D70865_A4A7_4A4A_B05B_9694F0271671__INCLUDED_)
#define AFX_SINGLECHAINEDLIST_H__B6D70865_A4A7_4A4A_B05B_9694F0271671__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "List.h"

template <class T>
class SingleChainedList : public List<T>  
{
private:

public:
	virtual void Append (T data)
	{
		if (First == 0)
		{
			First = new ListElement<T>;
			Last = First; 
		}
		else
		{
			Last->Next = new ListElement<T>;
			Last = Last->Next;
		}
		Last->Next = 0;
		Last->Data = data;
	}

	SingleChainedList();
	virtual ~SingleChainedList();

};

#endif // !defined(AFX_SINGLECHAINEDLIST_H__B6D70865_A4A7_4A4A_B05B_9694F0271671__INCLUDED_)

Ich bekomme die Fehler:

Main.obj : error LNK2001: unresolved external symbol "public: virtual __thiscall SingleChainedList<int>::~SingleChainedList<int>(void)" (??1?$SingleChainedList@H@@UAE@XZ)
Main.obj : error LNK2001: unresolved external symbol "public: __thiscall SingleChainedList<int>::SingleChainedList<int>(void)" (??0?$SingleChainedList@H@@QAE@XZ)
Debug/Lists Console.exe : fatal error LNK1120: 2 unresolved externals
Error executing link.exe.

Was mache ich falsch?

[sirniko]

bitte löschen

[sirniko]

Sorry, habs gelöst