2 * Generic vector interface header.
3 * Copyright (C) 1997, 98 Kunihiro Ishiguro
5 * This file is part of GNU Zebra.
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Zebra; see the file COPYING. If not, write to the Free
19 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
23 #ifndef _ZEBRA_VECTOR_H
24 #define _ZEBRA_VECTOR_H
26 /* struct for vector */
29 unsigned int active; /* number of active slots */
30 unsigned int alloced; /* number of allocated slot */
31 void **index; /* index to data */
33 typedef struct _vector *vector;
35 #define VECTOR_MIN_SIZE 1
37 /* (Sometimes) usefull macros. This macro convert index expression to
39 /* Reference slot at given index, caller must ensure slot is active */
40 #define vector_slot(V,I) ((V)->index[(I)])
41 /* Number of active slots.
42 * Note that this differs from vector_count() as it the count returned
43 * will include any empty slots
45 #define vector_active(V) ((V)->active)
48 extern vector vector_init (unsigned int size);
49 extern void vector_ensure (vector v, unsigned int num);
50 extern int vector_empty_slot (vector v);
51 extern int vector_set (vector v, void *val);
52 extern int vector_set_index (vector v, unsigned int i, void *val);
53 extern void vector_unset (vector v, unsigned int i);
54 extern unsigned int vector_count (vector v);
55 extern void vector_only_wrapper_free (vector v);
56 extern void vector_only_index_free (void *index);
57 extern void vector_free (vector v);
58 extern vector vector_copy (vector v);
60 extern void *vector_lookup (vector, unsigned int);
61 extern void *vector_lookup_ensure (vector, unsigned int);
63 #endif /* _ZEBRA_VECTOR_H */