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/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/** \file
* \ingroup bli
*/
#ifdef __cplusplus
extern "C" {
#endif
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 BLI_ITERATOR_INIT(iter) \
{ \
(iter)->skip = false; \
(iter)->valid = true; \
} \
((void)0)
#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; \
BLI_ITERATOR_INIT(&iter_macro); \
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)
#ifdef __cplusplus
}
#endif
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