C:/cygwin/home/Javier/insee/src/list.h

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#ifndef LIST_H
#define LIST_H

typedef struct _ListElement
{
        void    *previous; /* Null means first element */
        void    *next;     /* Null means last element */
        void    *pointer;
} listElement;
void         DestroyListElement( listElement * );
listElement *CreateListElement( void * );

listElement *AddBeforeElement( listElement *, void * );
listElement *AddAfterElement( listElement *, void * );

typedef struct _List
{
        int          emptyList;  /* TRUE / FALSE */
        listElement     *first;
        listElement     *last;
        listElement     *nextInLoop;
} list;

void  DestroyList( list ** );
        // Before destroying the list, 
        // probably, you should destroy the elements the list points to.
        // If they are not destroyed, they might be left "dangling"
        // if nobody else is pointing to them
list *CreateVoidList();

void  AddFirst( list *, void * );
void  AddLast ( list *, void * );
void *StartLoop( list * );
void *GetNext ( list * );
int   IsInList( list * , void * );
int   ElementsInList( list * );
void  RemoveFromList( list *, void *);
void  PrintList( list *thisList );

#endif /* LIST_H */