From ddc7e8b8c7439f80d52b66b88bed8c51efc98917 Mon Sep 17 00:00:00 2001
From: Dennis Luxen <luxen@kit.edu>
Date: Mon, 18 Jul 2011 15:48:30 +0000
Subject: [PATCH] Check if PhantomNodes are on same Edge.

---
 DataStructures/PhantomNodes.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/DataStructures/PhantomNodes.h b/DataStructures/PhantomNodes.h
index e2e56fd5a..5a4e0c364 100644
--- a/DataStructures/PhantomNodes.h
+++ b/DataStructures/PhantomNodes.h
@@ -46,6 +46,14 @@ struct PhantomNodes {
         startPhantom.Reset();
         targetPhantom.Reset();
     }
+
+    bool PhantomsAreOnSameEdge() const {
+        return ((startPhantom.startNode == startPhantom.targetNode && targetPhantom.startNode == targetPhantom.targetNode ) || (startPhantom.startNode == targetPhantom.targetNode && targetPhantom.startNode == startPhantom.targetNode));
+    }
+
+    bool AtLeastOnePhantomNodeIsUINTMAX() const {
+        return !(startPhantom.startNode == UINT_MAX || startPhantom.targetNode == UINT_MAX || targetPhantom.startNode == UINT_MAX || targetPhantom.targetNode == UINT_MAX);
+    }
 };
 
 std::ostream& operator<<(std::ostream &out, const PhantomNodes & pn){