X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=src%2Fdata%2Fcasereader.h;h=ffbd17323ffc32274c69ce8c41f7598170a08d16;hb=085d4563d8d5adfb3a2552d6ab1959c3fcacaee0;hp=d4a1cce5188a7a467569cbceb95ec9f30a1db402;hpb=0553d00dca10c2d2beeffd88fd12120e43a01025;p=pspp-builds.git

diff --git a/src/data/casereader.h b/src/data/casereader.h
index d4a1cce5..ffbd1732 100644
--- a/src/data/casereader.h
+++ b/src/data/casereader.h
@@ -70,6 +70,7 @@ void casereader_swap (struct casereader *, struct casereader *);
 
 bool casereader_peek (struct casereader *, casenumber, struct ccase *)
      WARN_UNUSED_RESULT;
+bool casereader_is_empty (struct casereader *);
 
 bool casereader_error (const struct casereader *);
 void casereader_force_error (struct casereader *);
@@ -97,6 +98,7 @@ struct casereader *
 casereader_create_filter_missing (struct casereader *,
                                   const struct variable **vars, size_t var_cnt,
                                   enum mv_class,
+				  casenumber *n_missing,
                                   struct casewriter *exclude);
 
 struct casereader *
@@ -111,4 +113,8 @@ casereader_create_translator (struct casereader *, size_t output_value_cnt,
                               bool (*destroy) (void *aux),
                               void *aux);
 
+struct casereader *
+casereader_create_arithmetic_sequence (struct casereader *,
+                                       double first, double increment);
+
 #endif /* data/casereader.h */