2 * collectd - src/sn_comparator.h
3 * Copyright (C) 2008 Florian octo Forster
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
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 along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Florian octo Forster <octo at verplant.org>
22 #ifndef SN_COMPARATOR_H
23 #define SN_COMPARATOR_H 1
25 struct sn_comparator_s
30 typedef struct sn_comparator_s sn_comparator_t;
32 #define SN_COMP_LEFT(c) (((c)->min < (c)->max) ? (c)->min : (c)->max)
33 #define SN_COMP_RIGHT(c) (((c)->min > (c)->max) ? (c)->min : (c)->max)
34 #define SN_COMP_MIN(c) (c)->min
35 #define SN_COMP_MAX(c) (c)->max
37 sn_comparator_t *sn_comparator_create (int min, int max);
38 void sn_comparator_destroy (sn_comparator_t *c);
39 void sn_comparator_invert (sn_comparator_t *c);
40 void sn_comparator_swap (sn_comparator_t *c, int con0, int con1);
42 int sn_comparator_compare (const void *, const void *);
44 #endif /* SN_COMPARATOR_H */
46 /* vim: set shiftwidth=2 softtabstop=2 : */