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#ifndef __COMMIT_REACH_H__
#define __COMMIT_REACH_H__
struct commit;
struct commit_list;
struct commit_list *get_merge_bases_many(struct commit *one,
int n,
struct commit **twos);
struct commit_list *get_merge_bases_many_dirty(struct commit *one,
int n,
struct commit **twos);
struct commit_list *get_merge_bases(struct commit *one, struct commit *two);
struct commit_list *get_octopus_merge_bases(struct commit_list *in);
/* To be used only when object flags after this call no longer matter */
struct commit_list *get_merge_bases_many_dirty(struct commit *one, int n, struct commit **twos);
int is_descendant_of(struct commit *commit, struct commit_list *with_commit);
int in_merge_bases_many(struct commit *commit, int nr_reference, struct commit **reference);
int in_merge_bases(struct commit *commit, struct commit *reference);
/*
* Takes a list of commits and returns a new list where those
* have been removed that can be reached from other commits in
* the list. It is useful for, e.g., reducing the commits
* randomly thrown at the git-merge command and removing
* redundant commits that the user shouldn't have given to it.
*
* This function destroys the STALE bit of the commit objects'
* flags.
*/
struct commit_list *reduce_heads(struct commit_list *heads);
/*
* Like `reduce_heads()`, except it replaces the list. Use this
* instead of `foo = reduce_heads(foo);` to avoid memory leaks.
*/
void reduce_heads_replace(struct commit_list **heads);
int ref_newer(const struct object_id *new_oid, const struct object_id *old_oid);
#endif
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