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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s): Dalai Felinto
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef __BLI_ITERATOR_H__
#define __BLI_ITERATOR_H__
/** \file BLI_iterator.h
* \ingroup bli
*/
typedef struct BLI_Iterator {
void *current; /* current pointer we iterate over */
void *data; /* stored data required for this iterator */
bool skip;
bool valid;
} BLI_Iterator;
typedef void (*IteratorCb)(BLI_Iterator *iter);
typedef void (*IteratorBeginCb)(BLI_Iterator *iter, void *data_in);
#define ITER_BEGIN(callback_begin, callback_next, callback_end, _data_in, _type, _instance) \
{ \
_type _instance; \
IteratorCb callback_end_func = callback_end; \
BLI_Iterator iter_macro; \
iter_macro.skip = false; \
iter_macro.valid = true; \
for (callback_begin(&iter_macro, (_data_in)); \
iter_macro.valid; \
callback_next(&iter_macro)) \
{ \
if (iter_macro.skip) { \
iter_macro.skip = false; \
continue; \
} \
_instance = (_type ) iter_macro.current;
#define ITER_END \
} \
callback_end_func(&iter_macro); \
} ((void)0)
#endif /* __BLI_ITERATOR_H__ */
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