1/*****************************************************************************/
2/* */
3/* bitops.h */
4/* */
5/* Single bit operations */
6/* */
7/* */
8/* */
9/* (C) 1998 Ullrich von Bassewitz */
10/* Wacholderweg 14 */
11/* D-70597 Stuttgart */
12/* EMail: uz@musoftware.de */
13/* */
14/* */
15/* This software is provided 'as-is', without any expressed or implied */
16/* warranty. In no event will the authors be held liable for any damages */
17/* arising from the use of this software. */
18/* */
19/* Permission is granted to anyone to use this software for any purpose, */
20/* including commercial applications, and to alter it and redistribute it */
21/* freely, subject to the following restrictions: */
22/* */
23/* 1. The origin of this software must not be misrepresented; you must not */
24/* claim that you wrote the original software. If you use this software */
25/* in a product, an acknowledgment in the product documentation would be */
26/* appreciated but is not required. */
27/* 2. Altered source versions must be plainly marked as such, and must not */
28/* be misrepresented as being the original software. */
29/* 3. This notice may not be removed or altered from any source */
30/* distribution. */
31/* */
32/*****************************************************************************/
33
34
35
36#ifndef BITOPS_H
37#define BITOPS_H
38
39
40
41#include "attrib.h"
42
43
44
45/*****************************************************************************/
46/* Code */
47/*****************************************************************************/
48
49
50
51unsigned BitFind (unsigned long Val) attribute ((const));
52/* Find the first bit that is set in Val. Val must *not* be zero */
53
54void BitSet (void* Data, unsigned Bit);
55/* Set a bit in a char array */
56
57void BitReset (void* Data, unsigned Bit);
58/* Reset a bit in a char array */
59
60int BitIsSet (void* Data, unsigned Bit) attribute ((const));
61/* Check if a bit is set in a char array */
62
63int BitIsReset (void* Data, unsigned Bit) attribute ((const));
64/* Check if a bit is reset in a char array */
65
66void BitMerge (void* Target, const void* Source, unsigned Size);
67/* Merge the bits of two char arrays (that is, do an or for the full array) */
68
69
70
71/* End of bitops.h */
72
73#endif
74