Add null ptr check to deleteChain

Refs #8360
mantidproject · Mar 14, 2014 · b59de9e · b59de9e
1 parent b12e386
commit b59de9e
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/Code/Mantid/Framework/Geometry/src/Math/Vertex2D.cpp b/Code/Mantid/Framework/Geometry/src/Math/Vertex2D.cpp
@@ -16,10 +16,12 @@ namespace Mantid
 
     /**
      * Deletes all nodes in a chain
-     * @para node A node in the chain
+     * @para node A node in the chain. If NULL then nothing happens
      */
     void Vertex2D::deleteChain(Vertex2D * node)
     {
+      if(!node) return;
+
       Vertex2D * head = node;
       Vertex2D * next = node->next();
       while(next != head)