openntpd-openbsd/src/include/float.h

/*	$OpenBSD: float.h,v 1.1 2012/06/26 16:16:16 deraadt Exp $	*/

/*
 * Copyright (c) 1989 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _FLOAT_H_
#define _FLOAT_H_

#include <sys/cdefs.h>
#include <machine/_float.h>

__BEGIN_DECLS
int __flt_rounds(void);
__END_DECLS

#define FLT_RADIX	__FLT_RADIX		/* b */
#define FLT_ROUNDS	__FLT_ROUNDS

#if __ISO_C_VISIBLE >= 1999
#define FLT_EVAL_METHOD	__FLT_EVAL_METHOD	/* long double */
#endif

#define FLT_MANT_DIG	__FLT_MANT_DIG		/* p */
#define FLT_EPSILON	__FLT_EPSILON		/* b**(1-p) */
#ifndef FLT_DIG
#define FLT_DIG		__FLT_DIG		/* floor((p-1)*log10(b))+(b == 10) */
#endif
#define FLT_MIN_EXP	__FLT_MIN_EXP		/* emin */
#ifndef FLT_MIN
#define FLT_MIN		__FLT_MIN		/* b**(emin-1) */
#endif
#define FLT_MIN_10_EXP	__FLT_MIN_10_EXP	/* ceil(log10(b**(emin-1))) */
#define FLT_MAX_EXP	__FLT_MAX_EXP		/* emax */
#ifndef FLT_MAX
#define FLT_MAX		__FLT_MAX		/* (1-b**(-p))*b**emax */
#endif
#define FLT_MAX_10_EXP	__FLT_MAX_10_EXP	/* floor(log10((1-b**(-p))*b**emax)) */

#define DBL_MANT_DIG	__DBL_MANT_DIG
#define DBL_EPSILON	__DBL_EPSILON
#ifndef DBL_DIG
#define DBL_DIG		__DBL_DIG
#endif
#define DBL_MIN_EXP	__DBL_MIN_EXP
#ifndef DBL_MIN
#define DBL_MIN		__DBL_MIN
#endif
#define DBL_MIN_10_EXP	__DBL_MIN_10_EXP
#define DBL_MAX_EXP	__DBL_MAX_EXP
#ifndef DBL_MAX
#define DBL_MAX		__DBL_MAX
#endif
#define DBL_MAX_10_EXP	__DBL_MAX_10_EXP

#define LDBL_MANT_DIG	__LDBL_MANT_DIG
#define LDBL_EPSILON	__LDBL_EPSILON
#define LDBL_DIG	__LDBL_DIG
#define LDBL_MIN_EXP	__LDBL_MIN_EXP
#define LDBL_MIN	__LDBL_MIN
#define LDBL_MIN_10_EXP	__LDBL_MIN_10_EXP
#define LDBL_MAX_EXP	__LDBL_MAX_EXP
#define LDBL_MAX	__LDBL_MAX
#define LDBL_MAX_10_EXP	__LDBL_MAX_10_EXP

#if __ISO_C_VISIBLE >= 1999
#define DECIMAL_DIG	__DECIMAL_DIG
#endif

#endif	/* _FLOAT_H_ */