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dabf4152 AM |
1 | /* |
2 | Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com> | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU Lesser General Public License as published by | |
6 | the Free Software Foundation; either version 2.1 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
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 Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public License | |
15 | along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | #define SLIST_ADD(list, item) \ | |
19 | do { \ | |
20 | (item)->next = (*list); \ | |
21 | (*list) = (item); \ | |
22 | } while (0); | |
23 | ||
24 | #define SLIST_ADD_END(list, item) \ | |
25 | if ((*list) == NULL) { \ | |
26 | SLIST_ADD((list), (item)); \ | |
27 | } else { \ | |
28 | void *head = (*list); \ | |
29 | while ((*list)->next) \ | |
30 | (*list) = (*list)->next; \ | |
31 | (*list)->next = (item); \ | |
32 | (item)->next = NULL; \ | |
33 | (*list) = head; \ | |
34 | } | |
35 | ||
36 | #define SLIST_REMOVE(list, item) \ | |
37 | if ((*list) == (item)) { \ | |
38 | (*list) = (item)->next; \ | |
39 | } else { \ | |
40 | void *head = (*list); \ | |
41 | while ((*list)->next && (*list)->next != (item)) \ | |
42 | (*list) = (*list)->next; \ | |
43 | if ((*list)->next != NULL) { \ | |
44 | (*list)->next = (*list)->next->next; \ | |
45 | } \ | |
46 | (*list) = head; \ | |
47 | } | |
48 | ||
49 | ||
50 | ||
51 |