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 | |
51 | unsigned BitFind (unsigned long Val) attribute ((const)); |
52 | /* Find the first bit that is set in Val. Val must *not* be zero */ |
53 | |
54 | void BitSet (void* Data, unsigned Bit); |
55 | /* Set a bit in a char array */ |
56 | |
57 | void BitReset (void* Data, unsigned Bit); |
58 | /* Reset a bit in a char array */ |
59 | |
60 | int BitIsSet (void* Data, unsigned Bit) attribute ((const)); |
61 | /* Check if a bit is set in a char array */ |
62 | |
63 | int BitIsReset (void* Data, unsigned Bit) attribute ((const)); |
64 | /* Check if a bit is reset in a char array */ |
65 | |
66 | void 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 | |