dll.h

#ifndef __DLL_INCLUDED__
#define __DLL_INCLUDED__

#include <stdio.h>

typedef struct dll DLL;

extern DLL *newDLL(void (*d)(void *,FILE *),void (*f)(void *));
extern void *insertDLL(DLL *items,int index,void *value);
extern void *removeDLL(DLL *items,int index);
extern void unionDLL(DLL *recipient,DLL *donor);
extern void *getDLL(DLL *items,int index);
extern void *setDLL(DLL *items,int index,void *value);
extern int sizeDLL(DLL *items);
extern void displayDLL(DLL *items,FILE *);
extern void displayDLLdebug(DLL *items,FILE *);
extern void freeDLL(DLL *items);

extern void removeDLLall(DLL *items);
extern void *removeDLLnode(DLL *, void *);
extern void firstDLL(DLL *);
extern void lastDLL(DLL* );
extern int moreDLL(DLL *);
extern void nextDLL(DLL *);
extern void prevDLL(DLL *);
extern void *currentDLL(DLL *);

#endif