index: Add a function for converting an index into a string.

1 files changed, 1 insertions, 0 deletions

diff --git a/index.h b/index.h
index af0ba68..d579d98 100644
--- a/index.h
+++ b/index.h
@@ -16,5 +16,6 @@ struct index {
 
 extern int is_valid_index(index *idx);
 extern char *make_index_path(const char *root, index *idx, int path_type);
+extern char *index_to_str(index *idx);
 
 #endif