1 /* PSPP - computes sample statistics.
2 Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 #include <data/case-source.h>
27 /* Creates a case source with class CLASS and auxiliary data AUX
28 and based on dictionary DICT. */
30 create_case_source (const struct case_source_class *class,
33 struct case_source *source = xmalloc (sizeof *source);
34 source->class = class;
39 /* Destroys case source SOURCE.
40 Returns true if successful,
41 false if the source encountered an I/O error during
42 destruction or reading cases. */
44 free_case_source (struct case_source *source)
49 if (source->class->destroy != NULL)
50 ok = source->class->destroy (source);
56 /* Returns true if CLASS is the class of SOURCE. */
58 case_source_is_class (const struct case_source *source,
59 const struct case_source_class *class)
61 return source != NULL && source->class == class;