blob: 1431a2d22797ff67f5ba8348bbbd5f8b0f5bf045 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
/*-------------------------------------------------------------------------
*
* bit.h
* Standard bit array definitions.
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: bit.h,v 1.5 1999/02/13 23:22:15 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef BIT_H
#define BIT_H
typedef bits8 *BitArray;
typedef uint32 BitIndex;
#define BitsPerByte 8
/*
* BitArraySetBit
* Sets (to 1) the value of a bit in a bit array.
*/
extern void BitArraySetBit(BitArray bitArray, BitIndex bitIndex);
/*
* BitArrayClearBit
* Clears (to 0) the value of a bit in a bit array.
*/
extern void BitArrayClearBit(BitArray bitArray, BitIndex bitIndex);
/*
* BitArrayBitIsSet
* True iff the bit is set (1) in a bit array.
*/
extern bool BitArrayBitIsSet(BitArray bitArray, BitIndex bitIndex);
#endif /* BIT_H */
|
