X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fcasereader.h;h=3df80cb08fb8d38acc302e0654a0217dd666287a;hb=5f8dc7ca9962b212d623566e287b0f1d365f6398;hp=a2d9403bb03bce10ede5a638f459261889d373ad;hpb=dcdf58a8089283c5eee2ea642e03dfacc60543e5;p=pspp

diff --git a/src/data/casereader.h b/src/data/casereader.h
index a2d9403bb0..3df80cb08f 100644
--- a/src/data/casereader.h
+++ b/src/data/casereader.h
@@ -125,12 +125,20 @@ struct casereader *
 casereader_create_arithmetic_sequence (struct casereader *,
                                        double first, double increment);
 
+enum rank_error
+  {
+    RANK_ERR_NONE = 0,
+    RANK_ERR_NEGATIVE_WEIGHT = 0x01,
+    RANK_ERR_UNSORTED = 0x02
+  };
+
 
 typedef void distinct_func (double v, casenumber n, double w, void *aux);
 
 struct casereader *
 casereader_create_append_rank (struct casereader *,
 			       const struct variable *v, const struct variable *w,
+			       enum rank_error *err,
 			       distinct_func *distinct_callback, void *aux);