bind9/lib/dns/include/dns/bit.h
2007-06-19 23:47:24 +00:00

39 lines
1.3 KiB
C

/*
* Copyright (C) 2004-2007 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 2000, 2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: bit.h,v 1.14 2007/06/19 23:47:16 tbox Exp $ */
#ifndef DNS_BIT_H
#define DNS_BIT_H 1
/*! \file dns/bit.h */
#include <isc/int.h>
#include <isc/boolean.h>
typedef isc_uint64_t dns_bitset_t;
#define DNS_BIT_SET(bit, bitset) \
(*(bitset) |= ((dns_bitset_t)1 << (bit)))
#define DNS_BIT_CLEAR(bit, bitset) \
(*(bitset) &= ~((dns_bitset_t)1 << (bit)))
#define DNS_BIT_CHECK(bit, bitset) \
ISC_TF((*(bitset) & ((dns_bitset_t)1 << (bit))) \
== ((dns_bitset_t)1 << (bit)))
#endif /* DNS_BIT_H */