1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
3 Written by John Darrington <john@darrington.wattle.id.au>
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
22 #include <libpspp/alloc.h>
23 #include <libpspp/compiler.h>
24 #include <libpspp/hash.h>
26 #include "group-proc.h"
27 #include <libpspp/str.h>
28 #include <data/variable.h>
29 #include <libpspp/misc.h>
32 /* Return -1 if the id of a is less than b; +1 if greater than and
35 compare_group(const struct group_statistics *a,
36 const struct group_statistics *b,
39 return compare_values(&a->id, &b->id, width);
45 hash_group(const struct group_statistics *g, int width)
49 id_hash = hash_value(&g->id, width);
56 free_group(struct group_statistics *v, void *aux UNUSED)
63 group_proc_get (struct variable *v)
65 /* This is not ideal, obviously. */
67 var_attach_aux (v, xmalloc (sizeof (struct group_proc)), var_dtor_free);