X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2Fsort.h;fp=src%2Fmath%2Fsort.h;h=06227d64ba670cd21013d4b267134fd10238b5c7;hb=86189d786fc34c9da174b5018bec27640f7062e4;hp=96ac32cc0b7a54a85e8297822b80ccfddbd40451;hpb=7c96e98d5ee26ca08d9d31e84b08e79f1183663d;p=pspp

diff --git a/src/math/sort.h b/src/math/sort.h
index 96ac32cc0b..06227d64ba 100644
--- a/src/math/sort.h
+++ b/src/math/sort.h
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 1997-9, 2000, 2006, 2009 Free Software Foundation, Inc.
+   Copyright (C) 1997-9, 2000, 2006, 2009, 2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -30,4 +30,14 @@ struct casereader *sort_execute (struct casereader *, const struct subcase *);
 struct casereader *sort_execute_1var (struct casereader *,
                                       const struct variable *);
 
+typedef struct ccase *sort_distinct_combine_func (struct ccase *first,
+                                                  struct ccase *second,
+                                                  void *aux);
+typedef void sort_distinct_destroy_func (void *aux);
+struct casewriter *sort_distinct_create_writer (const struct subcase *,
+                                                const struct caseproto *,
+                                                sort_distinct_combine_func *,
+                                                sort_distinct_destroy_func *,
+                                                void *aux);
+
 #endif /* math/sort.h */