Function is_null_oid

hash.h:455–459

}

static inline int is_null_oid(const struct object_id *oid)
{
	static const unsigned char null_hash[GIT_MAX_RAWSZ];
	return !memcmp(oid->hash, null_hash, GIT_MAX_RAWSZ);
}

const char *empty_tree_oid_hex(const struct git_hash_algo *algop);