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#ifndef GU_ENUM_H_
#define GU_ENUM_H_
#include <gu/mem.h>
typedef struct GuEnum GuEnum;
struct GuEnum {
void (*next)(GuEnum* self, void* to, GuPool* pool);
};
void
gu_enum_next(GuEnum* en, void* to, GuPool* pool);
#ifdef GU_GNUC
#define gu_next(ENUM, T, POOL) \
({ \
T gu_next_tmp_; \
gu_enum_next((ENUM), &gu_next_tmp_, (POOL)); \
gu_next_tmp_; \
})
#else
static inline void*
gu_enum_next_(GuEnum* en, void* to, GuPool* pool)
{
gu_enum_next(en, to, pool);
return to;
}
#define gu_next(ENUM, T, POOL) \
(*(T*)gu_enum_next_((ENUM), &(T){0}, (POOL)))
#endif
#endif /* GU_ENUM_H_ */
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