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/*
* libtu/iterable.h
*
* Copyright (c) Tuomo Valkonen 2005.
*
* You may distribute and modify this library under the terms of either
* the Clarified Artistic License or the GNU LGPL, version 2.1 or later.
*/
#ifndef LIBTU_ITERABLE_H
#define LIBTU_ITERABLE_H
#include "types.h"
#include "obj.h"
typedef void *VoidIterator(void *);
typedef Obj *ObjIterator(void *);
typedef bool BoolFilter(void *p, void *param);
#define FOR_ALL_ITER(INIT, ITER, VAR, LL, TMP) \
for(INIT(TMP, LL), (VAR)=ITER(TMP); (VAR)!=NULL; VAR=ITER(TMP))
extern void *iterable_nth(uint n, VoidIterator *iter, void *st);
extern bool iterable_is_on(void *p, VoidIterator *iter, void *st);
extern void *iterable_find(BoolFilter *f, void *fparam,
VoidIterator *iter, void *st);
#endif /* LIBTU_ITERABLE_H */
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