include/bitmask.h
/* [<][>][^][v][top][bottom][index][help] */
FUNCTIONS
This source file includes following functions.
- MA_eq
1 /***************************************
2 $Revision: 1.8 $
3
4 bitmask (ma) - bitmask.h - header file for bitmask library
5
6 Status: NOT REVUED, TESTED, INCOMPLETE
7
8 Design and implementation by: Marek Bukowy
9
10 ******************/ /******************
11 Copyright (c) 1999 RIPE NCC
12
13 All Rights Reserved
14
15 Permission to use, copy, modify, and distribute this software and its
16 documentation for any purpose and without fee is hereby granted,
17 provided that the above copyright notice appear in all copies and that
18 both that copyright notice and this permission notice appear in
19 supporting documentation, and that the name of the author not be
20 used in advertising or publicity pertaining to distribution of the
21 software without specific, written prior permission.
22
23 THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
24 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
25 AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
26 DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
27 AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
28 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
29 ***************************************/
30
31
32 #ifndef READ_BITMASK
33 #define READ_BITMASK
34
35 #define MASK_BITS_BASETYPE unsigned int
36 #define MASK_BITS_BASESIZE (8 * sizeof (MASK_BITS_BASETYPE))
37
38 /* size of the mask: to keep things simple, there is only one size
39 that must suit everybody. The requirements are listed below.
40
41 Marek: Aspects. Not many so far, about 30-40 possible.
42 Chris: Query types, 78 at the moment, probably less than 128 at the end
43 */
44
45
46 #define MASK_MAX 128
47 #define MASK_BITS_WORDS (MASK_MAX / MASK_BITS_BASESIZE + 1)
48
49 typedef struct {
50 MASK_BITS_BASETYPE data[MASK_BITS_WORDS];
51 } mask_t;
52
53
54 #define MA_END (-1)
55
56 #ifdef __cplusplus
57 extern "C" {
58 #endif
59
60 void MA_free(mask_t *m);
61 int MA_isset(mask_t d, unsigned b);
62 void MA_set(mask_t *m_ptr, unsigned b, unsigned v);
63 void MA_clear(mask_t *m_ptr);
64 mask_t MA_new(int n,...);
65 void MA_prt(mask_t m);
66 mask_t MA_and(mask_t a, mask_t b);
67 mask_t MA_xor(mask_t a, mask_t b);
68 mask_t MA_or(mask_t a, mask_t b);
69 mask_t MA_not(mask_t a);
70 int MA_bitcount(mask_t m);
71 char *MA_to_string(mask_t mask, char * const *tokens);
72
73 #define MA_eq(a,b) (memcmp( &(a), &(b), sizeof(mask_t))==0)
/* [<][>][^][v][top][bottom][index][help] */
74
75 #ifdef __cplusplus
76 }
77
78 #endif
79
80
81 #endif /* READ_BITMASK */