X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fcasereader.h;h=a2e789ae6f777c8fc3688c3dc9110180434f75f0;hb=04ffc94fe6e7940dd49bf3185048ba99aee58442;hp=107e60693bb6022d9c7ecd55ec6b4b3931d86f30;hpb=74d822fd30c51b33035cbf017aa8fa75fa2b97c4;p=pspp

diff --git a/src/data/casereader.h b/src/data/casereader.h
index 107e60693b..a2e789ae6f 100644
--- a/src/data/casereader.h
+++ b/src/data/casereader.h
@@ -58,6 +58,7 @@
 struct dictionary;
 struct casereader;
 struct casewriter;
+struct subcase;
 
 struct ccase *casereader_read (struct casereader *);
 bool casereader_destroy (struct casereader *);
@@ -76,12 +77,15 @@ void casereader_force_error (struct casereader *);
 const struct taint *casereader_get_taint (const struct casereader *);
 
 casenumber casereader_get_case_cnt (struct casereader *);
-casenumber casereader_count_cases (struct casereader *);
+casenumber casereader_count_cases (const struct casereader *);
 void casereader_truncate (struct casereader *, casenumber);
 const struct caseproto *casereader_get_proto (const struct casereader *);
 
+casenumber casereader_advance (struct casereader *, casenumber);
 void casereader_transfer (struct casereader *, struct casewriter *);
 
+struct casereader *casereader_create_empty (const struct caseproto *);
+
 struct casereader *
 casereader_create_filter_func (struct casereader *,
                                bool (*include) (const struct ccase *,
@@ -96,7 +100,7 @@ casereader_create_filter_weight (struct casereader *,
                                  struct casewriter *exclude);
 struct casereader *
 casereader_create_filter_missing (struct casereader *,
-                                  const struct variable **vars, size_t var_cnt,
+                                  const struct variable *const*vars, size_t var_cnt,
                                   enum mv_class,
 				  casenumber *n_missing,
                                   struct casewriter *exclude);
@@ -113,6 +117,22 @@ casereader_create_translator (struct casereader *,
                               bool (*destroy) (void *aux),
                               void *aux);
 
+struct casereader *
+casereader_translate_stateless (struct casereader *,
+                                const struct caseproto *output_proto,
+                                struct ccase *(*translate) (struct ccase *,
+                                                            casenumber idx,
+                                                            const void *aux),
+                                bool (*destroy) (void *aux),
+                                void *aux);
+
+struct casereader *casereader_project (struct casereader *,
+                                       const struct subcase *);
+struct casereader *casereader_project_1 (struct casereader *, int column);
+struct casereader *casereader_select (struct casereader *,
+                                      casenumber first, casenumber last,
+                                      casenumber by);
+
 /* A function which creates a numberic value from an existing case */
 typedef double new_value_func (const struct ccase *, casenumber, void *);