From e9c5e5844109cf683c69f3eea296d7b23fdad839 Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@cs.stanford.edu>
Date: Thu, 4 Aug 2022 17:40:41 -0700
Subject: [PATCH] dataset: Fix measure guesser.

---
 src/data/dataset.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/data/dataset.c b/src/data/dataset.c
index 41b467a0ae..450383fb87 100644
--- a/src/data/dataset.c
+++ b/src/data/dataset.c
@@ -1142,6 +1142,8 @@ measure_guesser_run (struct measure_guesser *mg,
   while (mg->n_vars > 0)
     {
       struct ccase *c = casereader_read (r);
+      if (!c)
+        break;
       measure_guesser_add_case (mg, c);
       case_unref (c);
     }
-- 
2.30.2