X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=nodestack.h;h=941178d7be453267b7556a1226c4883a11128d9e;hb=dc9c89654982c64264dfee7b1ea23e9a5e88e18e;hp=47c72678aa13cffb9294e6a7d842860136e37baf;hpb=ffb2033ac6b31407810703b65ae0fbaeb9c0da59;p=model-checker.git

diff --git a/nodestack.h b/nodestack.h
index 47c7267..941178d 100644
--- a/nodestack.h
+++ b/nodestack.h
@@ -56,6 +56,7 @@ public:
 	/* return true = backtrack set is empty */
 	bool backtrack_empty() const;
 
+	void clear_backtracking();
 	void explore_child(ModelAction *act, enabled_type_t *is_enabled);
 	/* return false = thread was already in backtrack */
 	bool set_backtrack(thread_id_t id);
@@ -71,7 +72,7 @@ public:
 	 * occurred previously in the stack. */
 	Node * get_parent() const { return parent; }
 
-	bool add_future_value(struct future_value& fv);
+	bool add_future_value(struct future_value fv);
 	struct future_value get_future_value() const;
 	bool increment_future_value();
 	bool future_value_empty() const;