1 files changed, 1 insertions, 0 deletions

diff --git a/src/utils.h b/src/utils.h
index 730fbad..67477b5 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -54,6 +54,7 @@ void collection_add(struct collection *col, void *element);
 void collection_remove(struct collection *col, void *element);
 int collection_count(struct collection *col);
 void collection_free(struct collection *col);
+void collection_copy(struct collection *dest, struct collection *src);
 
 #define MERGE_(a,b) a ## _ ## b
 #define LABEL_(a,b) MERGE_(a, b)