From: kim <kim@3cdefd35-fc62-479d-8e8d-bae585ffb9ca>
Date: Tue, 27 Jan 2009 00:04:58 +0000 (+0000)
Subject: NextSibling() segfault when called on the root node, so add a check
X-Git-Url: http://git.nguyen.vg/gitweb/?a=commitdiff_plain;h=9b3825663e88360c57dfe66cee5330f8f80fb452;p=SXSI%2FXMLTree.git

NextSibling() segfault when called on the root node, so add a check
and retrung NULLT if the argument is ther root node. It's consistent with
the behaviour of calling FirstChild on a leaf node.


git-svn-id: svn+ssh://idea.nguyen.vg/svn/sxsi/trunk/XMLTree@65 3cdefd35-fc62-479d-8e8d-bae585ffb9ca
---

diff --git a/XMLTree.cpp b/XMLTree.cpp
index 92360a4..3c51b2f 100644
--- a/XMLTree.cpp
+++ b/XMLTree.cpp
@@ -345,7 +345,9 @@ treeNode XMLTree::NextSibling(treeNode x)
        fprintf(stderr, "Error: data structure has not been constructed properly\n");
        exit(1);
     }
-
+    if (x == Root())
+      return NULLT;
+ 
     return next_sibling(Par, x);
  }