3 // Copyright (C) 2005 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
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; version 2 of the License.
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, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 #include "vector-internal.h"
31 Vector_searchSelfOrg(struct Vector *vec, void const *key,
32 int (*compare)(const void *, const void *),
33 VectorSelfOrgMethod method)
35 char * const start_ptr = vec->data;
36 char * const end_ptr = start_ptr + vec->count*vec->elem_size;
37 char *ptr = start_ptr;
39 for (; ptr<end_ptr && compare(ptr, key)!=0; )
40 ptr += vec->elem_size;
42 if (end_ptr <= ptr) ptr = 0;
43 else if (start_ptr < ptr) {
44 char tmp[vec->elem_size];
45 memcpy(tmp, ptr, vec->elem_size);
47 assert(ptr >= start_ptr+vec->elem_size);
51 memmove(start_ptr+vec->elem_size, start_ptr, ptr - start_ptr);
57 memmove(ptr, ptr - vec->elem_size, vec->elem_size);
58 ptr -= vec->elem_size;
66 memcpy (ptr, tmp, vec->elem_size);