File: sha1-array.h

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#ifndef SHA1_ARRAY_H
#define SHA1_ARRAY_H

struct sha1_array {
	unsigned char (*sha1)[20];
	int nr;
	int alloc;
	int sorted;
};

#define SHA1_ARRAY_INIT { NULL, 0, 0, 0 }

void sha1_array_append(struct sha1_array *array, const unsigned char *sha1);
int sha1_array_lookup(struct sha1_array *array, const unsigned char *sha1);
void sha1_array_clear(struct sha1_array *array);

typedef void (*for_each_sha1_fn)(const unsigned char sha1[20],
				 void *data);
void sha1_array_for_each_unique(struct sha1_array *array,
				for_each_sha1_fn fn,
				void *data);

#endif /* SHA1_ARRAY_H */