int commit_contains(struct ref_filter *filter, struct commit *commit,
struct commit_list *list, struct contains_cache *cache);
+/*
+ * Determine if every commit in 'from' can reach at least one commit
+ * that is marked with 'with_flag'. As we traverse, use 'assign_flag'
+ * as a marker for commits that are already visited. Do not walk
+ * commits with date below 'min_commit_date' or generation below
+ * 'min_generation'.
+ */
+int can_all_from_reach_with_flag(struct object_array *from,
+ unsigned int with_flag,
+ unsigned int assign_flag,
+ time_t min_commit_date,
+ uint32_t min_generation);
+int can_all_from_reach(struct commit_list *from, struct commit_list *to,
+ int commit_date_cutoff);
+
#endif