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460b9539 | 1 | /* |
2 | * This file is part of DisOrder | |
5aff007d | 3 | * Copyright (C) 2004, 2005, 2007, 2008 Richard Kettlewell |
460b9539 | 4 | * |
e7eb3a27 | 5 | * This program is free software: you can redistribute it and/or modify |
460b9539 | 6 | * it under the terms of the GNU General Public License as published by |
e7eb3a27 | 7 | * the Free Software Foundation, either version 3 of the License, or |
460b9539 | 8 | * (at your option) any later version. |
e7eb3a27 RK |
9 | * |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
460b9539 | 15 | * You should have received a copy of the GNU General Public License |
e7eb3a27 | 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
460b9539 | 17 | */ |
132a5a4a RK |
18 | /** @file lib/table.h |
19 | * @brief Generic binary search | |
20 | */ | |
460b9539 | 21 | #ifndef TABLE_H |
22 | #define TABLE_H | |
23 | ||
05b75f8d RK |
24 | #include <stddef.h> |
25 | ||
ba937f01 RK |
26 | #define TABLE_FIND(TABLE, FIELD, NAME) \ |
27 | table_find((void *)TABLE, \ | |
28 | offsetof(typeof((TABLE)[0]), FIELD), \ | |
29 | sizeof ((TABLE)[0]), \ | |
30 | sizeof TABLE / sizeof ((TABLE)[0]), \ | |
460b9539 | 31 | NAME) |
ba937f01 | 32 | /* Search TABLE[] for an element where TABLE[N].FIELD matches NAME |
460b9539 | 33 | * Returns the index N on success or -1 if not found |
34 | * The table must be lexically sorted on FIELD | |
35 | */ | |
36 | ||
37 | int table_find(const void *table, size_t offset, size_t eltsize, size_t nelts, | |
38 | const char *name); | |
39 | ||
40 | #endif /* TABLE_H */ | |
41 | ||
42 | /* | |
43 | Local Variables: | |
44 | c-basic-offset:2 | |
45 | comment-column:40 | |
46 | End: | |
47 | */ |