postgresql/src/include/utils/bit.h
Marc G. Fournier 1054097464 More cleanups of the include files
- centralizing to simplify the -I's required to compile
1996-08-28 01:59:28 +00:00

39 lines
901 B
C

/*-------------------------------------------------------------------------
*
* bit.h--
* Standard bit array definitions.
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: bit.h,v 1.1 1996/08/28 01:58:43 scrappy 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 */