mdw@git.distorted.org.uk Git - disorder/blob - lib/table.c

   1 /*
   2  * This file is part of DisOrder
   3  * Copyright (C) 2004, 2007, 2008 Richard Kettlewell
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  */
  20
  21 #include "common.h"
  22
  23 #include "table.h"
  24
  25 int table_find(const void *table, size_t offset, size_t eltsize, size_t nelts,
  26                const char *name) {
  27   int l = 0, r = (int)nelts - 1, c, m;
  28   const char *k;
  29
  30   while(l <= r) {
  31     k = *(const char **)((char *)table + offset + eltsize * (m = (l + r) / 2));
  32     if(!(c = strcmp(name, k)))
  33       return m;
  34     if(c < 0)
  35       r = m - 1;
  36     else
  37       l = m + 1;
  38   }
  39   return -1;
  40 }
  41
  42 /*
  43 Local Variables:
  44 c-basic-offset:2
  45 comment-column:40
  46 End:
  47 */