/*------------------------------------------------------------------------- * * bit.c *	  Standard bit array code. * * Copyright (c) 1994, Regents of the University of California * * * IDENTIFICATION *	  $Header: /usr/local/cvsroot/pgsql/src/backend/lib/bit.c,v 1.6 1999/02/13 23:15:32 momjian Exp $ * *------------------------------------------------------------------------- *//* * utils/memutils.h contains declarations of the functions in this file */#include <postgres.h>#include <utils/bit.h>#include <utils/memutils.h>voidBitArraySetBit(BitArray bitArray, BitIndex bitIndex){	bitArray[bitIndex / BitsPerByte]	|= (1 << (BitsPerByte - (bitIndex % BitsPerByte) - 1));	return;}voidBitArrayClearBit(BitArray bitArray, BitIndex bitIndex){	bitArray[bitIndex / BitsPerByte]	&= ~(1 << (BitsPerByte - (bitIndex % BitsPerByte) - 1));	return;}boolBitArrayBitIsSet(BitArray bitArray, BitIndex bitIndex){	return ((bool) (((bitArray[bitIndex / BitsPerByte] &					  (1 << (BitsPerByte - (bitIndex % BitsPerByte)							 - 1)					   )					  ) != 0) ? 1 : 0));}