root/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_ */