From d6111d26da0701438a2e2813f14b0edfdf5453c8 Mon Sep 17 00:00:00 2001
From: John Darrington <john@darrington.wattle.id.au>
Date: Sun, 19 Jul 2009 14:20:07 +0200
Subject: [PATCH] Add assertion to check code consitency

---
 src/language/stats/roc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/language/stats/roc.c b/src/language/stats/roc.c
index e7dec56b..866eba83 100644
--- a/src/language/stats/roc.c
+++ b/src/language/stats/roc.c
@@ -393,12 +393,13 @@ accumulate_counts (struct casereader *cutpoint_rdr,
   struct ccase *cpc;
   double prev_cp = SYSMIS;
 
-
   for ( ; (cpc = casereader_read (r) ); case_unref (cpc))
     {
       struct ccase *new_case;
       const double cp = case_data_idx (cpc, CUTPOINT)->f;
 
+      assert (cp != SYSMIS);
+
       /* We don't want duplicates here */
       if ( cp == prev_cp )
 	continue;
-- 
2.30.2