Fix the bug of forgetting to check cloned nodes.

In the process of splitting, cloning, and planting the forest, I
forgot to check whether some cloned node of the node inquestion
satisfy the condition.  This used to cause forests that violate some
fundamental assumptions.  Now this is supposed to be fixed, but more
tests await us.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/helper.h b/src/helper.h
index 18aa35f..37cd7fd 100644
--- a/src/helper.h
+++ b/src/helper.h
@@ -73,4 +73,15 @@ void print_label(struct Label label);
 //
 // And add functions for queryinf information from the forest.
 
+// TODO: Declare opaque struct standing for forests, and connect to
+// the function for printing labels of forests.
+//
+// This can be used in debuggers to help us diagnose the situation.
+
+struct CForest;
+
+void print_forest_node(struct CForest *forest, unsigned char *node);
+
+void print_node(struct CForest *forest, uint64_t node);
+
 #endif