From a3c951764e119735c499d515d2b36ece5c749353 Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Thu, 24 Apr 2003 13:48:54 +0000
Subject: (tsort): Fail if the input contains an odd number of tokens.

---
 src/tsort.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/tsort.c')

diff --git a/src/tsort.c b/src/tsort.c
index ebd1d43f9..d7573de82 100644
--- a/src/tsort.c
+++ b/src/tsort.c
@@ -1,5 +1,5 @@
 /* tsort - topological sort.
-   Copyright (C) 1998-2002 Free Software Foundation, Inc.
+   Copyright (C) 1998-2003 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -491,6 +491,10 @@ tsort (const char *file)
       j = k;
     }
 
+  if (k != NULL)
+    error (EXIT_FAILURE, 0, _("%s: input contains an odd number of tokens"),
+	   file);
+
   /* T1. Initialize (N <- n).  */
   walk_tree (root, count_items);
 
-- 
cgit v1.2.3-54-g00ecf