xref: /src/sys/arch/vax/include/float.h

/*	$NetBSD: float.h,v 1.9 2003/10/23 23:16:50 kleink 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.
 *
 *	@(#)float.h     7.2 (Berkeley) 6/28/90
 */

#ifndef _VAX_FLOAT_H_
#define _VAX_FLOAT_H_

#include <sys/cdefs.h>
#include <sys/featuretest.h>

#define FLT_RADIX	2		/* b */
#define FLT_ROUNDS	1		/* FP addition rounds to nearest */

#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
    !defined(_XOPEN_SOURCE) || \
    ((__STDC_VERSION__ - 0) >= 199901L) || \
    ((_POSIX_C_SOURCE - 0) >= 200112L) || \
    ((_XOPEN_SOURCE  - 0) >= 600) || \
    defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
#if __GNUC_PREREQ__(3, 3)
#define	FLT_EVAL_METHOD	__FLT_EVAL_METHOD__
#else
#define	FLT_EVAL_METHOD	0		/* evaluate all operations and
					   constants just to the range and
					   precision of the type */
#endif /* GCC >= 3.3 */
#endif /* !defined(_ANSI_SOURCE) && ... */

#define FLT_MANT_DIG	24		/* p */
#define FLT_EPSILON	1.19209290E-7F	/* b**(1-p) */
#define FLT_DIG		6		/* floor((p-1)*log10(b))+(b == 10) */
#define FLT_MIN_EXP	(-127)		/* emin */
#define FLT_MIN		2.93873588E-39F	/* b**(emin-1) */
#define FLT_MIN_10_EXP	(-38)		/* ceil(log10(b**(emin-1))) */
#define FLT_MAX_EXP	127		/* emax */
#define FLT_MAX		1.70141173E+38F	/* (1-b**(-p))*b**emax */
#define FLT_MAX_10_EXP	38		/* floor(log10((1-b**(-p))*b**emax)) */

#define DBL_MANT_DIG	56
#define DBL_EPSILON	2.77555756156289135E-17
#define DBL_DIG		16
#define DBL_MIN_EXP	(-127)
#define DBL_MIN		2.938735877055718770E-39
#define DBL_MIN_10_EXP	(-38)
#define DBL_MAX_EXP	127
#define DBL_MAX		1.701411834604692294E+38
#define DBL_MAX_10_EXP	38

#define LDBL_MANT_DIG	DBL_MANT_DIG
#define LDBL_EPSILON	DBL_EPSILON
#define LDBL_DIG	DBL_DIG
#define LDBL_MIN_EXP	DBL_MIN_EXP
#define LDBL_MIN	DBL_MIN
#define LDBL_MIN_10_EXP	DBL_MIN_10_EXP
#define LDBL_MAX_EXP	DBL_MAX_EXP
#define LDBL_MAX	DBL_MAX
#define LDBL_MAX_10_EXP	DBL_MAX_10_EXP

#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
    !defined(_XOPEN_SOURCE) || \
    ((__STDC_VERSION__ - 0) >= 199901L) || \
    ((_POSIX_C_SOURCE - 0) >= 200112L) || \
    ((_XOPEN_SOURCE  - 0) >= 600) || \
    defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
#define	DECIMAL_DIG	18		/* ceil((1+p*log10(b))-(b==10) */
#endif
#endif	/* _VAX_FLOAT_H_ */