/* 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
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 */