office-gobmx/vcl/inc/list.h

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/*[]---------------------------------------------------[]*/
/*|                                                     |*/
/*|  Implementation of the list data type               |*/
/*|                                                     |*/
/*|                                                     |*/
/*|  Author: Alexander Gelfenbain                       |*/
/*[]---------------------------------------------------[]*/

#ifndef __CLIST_H
#define __CLIST_H

#ifdef __cplusplus
extern "C"
{
#endif

/*
 * List of void * pointers
 */

    typedef struct _list *list;
    typedef void (*list_destructor)(void *);

/*- constructors and a destructor */
    list listNewEmpty(void);
#ifdef TEST
    list listNewCopy(list);
#endif
    void listDispose(list);
    void listSetElementDtor(list, list_destructor);                     /*- this function will be executed when the element is removed via listRemove() or listClear() */

/*- queries */
    void * listCurrent(list);
    int    listCount(list);
    int    listIsEmpty(list);
#ifdef TEST
    int    listAtFirst(list);
    int    listAtLast(list);
    int    listPosition(list);                        /* Expensive! */
#endif

/*- positioning functions */
/*- return the number of elements by which the current position in the list changes */
    int    listNext(list);
    int    listSkipForward(list, int n);
    int    listToFirst(list);
    int    listToLast(list);

/*- adding and removing elements */
    list   listAppend(list, void *);
#ifdef TEST
    list   listPrepend(list, void *);
    list   listInsertAfter(list, void *);
    list   listInsertBefore(list, void *);
#endif
    list   listRemove(list);                          /* removes the current element */
    list   listClear(list);                           /* removes all elements */

#ifdef TEST
/*- forall */
    void   listForAll(list, void (*f)(void *));
#endif

#ifdef __cplusplus
}
#endif


#endif /* __CLIST_H */

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