1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
3 Written by Ben Pfaff <blp@gnu.org>.
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
29 /* The current active file, from which cases are read. */
30 extern struct case_source *vfm_source;
32 /* The replacement active file, to which cases are written. */
33 extern struct case_sink *vfm_sink;
35 bool procedure (bool (*proc_func) (struct ccase *, void *aux), void *aux);
36 bool procedure_with_splits (void (*begin_func) (void *aux),
37 bool (*proc_func) (struct ccase *, void *aux),
38 void (*end_func) (void *aux),
40 bool multipass_procedure_with_splits (bool (*) (const struct casefile *,
43 time_t time_of_last_procedure (void);
45 /* Number of cases to lag. */
48 struct ccase *lagged_case (int n_before);
50 #endif /* procedure.h */