OBLIST.H

//**************************************************************************** 
// 
//  SKIPPY! sample for Microsoft NetMeeting SDK 
// 
//  File:       oblist.h 
//  Content:    This file contains the list class functions. 
// 
//  Copyright (c) Microsoft Corporation 1997 
//  All rights reserved 
// 
//**************************************************************************** 
 
#ifndef _OBLIST_H_ 
#define _OBLIST_H_ 
 
// class COBNODE; 
#define POSITION COBNODE* 
 
struct COBNODE 
{ 
POSITION  pNext; 
void*     pItem; 
}; 
 
class COBLIST 
{ 
protected: 
POSITION        m_pHead; 
POSITION        m_pTail; 
virtual BOOL    Compare(void* pItemToCompare, void* pComparator) 
{return(pItemToCompare == pComparator);}; 
public: 
COBLIST() : m_pHead(NULL), m_pTail(NULL) { }; 
~COBLIST() {}; 
 
POSITION        GetHeadPosition() { return(m_pHead); }; 
POSITION        GetTailPosition() { return(m_pTail); }; 
virtual void *  RemoveAt(POSITION rPos); 
POSITION        AddTail(void* pItem); 
BOOL            IsEmpty() { return(!m_pHead); }; 
void *          GetTail(); 
void *          GetNext(POSITION& rPos); 
void *          SafeGetFromPosition(POSITION rPos); 
POSITION        GetPosition(void* pItem); 
POSITION        Lookup(void* pComparator); 
void            EmptyList(); 
 
void *          GetHead(){return GetFromPosition(GetHeadPosition());}; 
void *          RemoveHead() { return RemoveAt(m_pHead); }; 
void *          GetFromPosition(POSITION rPos){return(rPos->pItem);}; 
}; 
 
#endif // ifndef _OBLIST_H_