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#ifndef GU_CHOICE_H_
#define GU_CHOICE_H_
#include <gu/mem.h>
typedef struct GuChoice GuChoice;
typedef struct GuChoiceMark GuChoiceMark;
GuChoice*
gu_new_choice(GuPool* pool);
int
gu_choice_next(GuChoice* ch, int n_choices);
GuChoiceMark
gu_choice_mark(GuChoice* ch);
void
gu_choice_reset(GuChoice* ch, GuChoiceMark mark);
bool
gu_choice_advance(GuChoice* ch);
// private
struct GuChoiceMark {
size_t path_idx;
};
#endif // GU_CHOICE_H_
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