2 * Copyright (C) 2011 Andy Spencer <andy753421@gmail.com>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU 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, see <http://www.gnu.org/licenses/>.
18 /* Various utility functions */
21 #define MAX(a,b) ((a) > (b) ? (a) : (b))
22 #define MIN(a,b) ((a) < (b) ? (a) : (b))
24 #define new0(type) (calloc(1, sizeof(type)))
26 #define countof(x) (sizeof(x)/sizeof((x)[0]))
28 /* Constant length map functions */
29 #define map_getg(map, test) ({ \
31 for (i = 0; i < countof(map) && !(test); i++); \
32 i < countof(map) ? &map[i] : NULL ; \
35 #define map_get(m,k) map_getg(m,k==*((typeof(k)*)&m[i]))
36 #define map_getr(m,k) map_getg(m,k==*(((typeof(k)*)&m[i+1])-1))
37 #define map_getk(m,k,a) map_getg(m,k==m[i].a)
46 list_t *list_insert(list_t *after, void *data);
48 void list_insert_after(list_t *after, void *data);
50 list_t *list_append(list_t *before, void *data);
52 list_t *list_remove(list_t *head, list_t *item);
54 int list_length(list_t *item);
56 list_t *list_last(list_t *list);
58 list_t *list_find(list_t *list, void *data);
61 int error(char *fmt, ...);