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/*
Copyright (C) 1988 Free Software Foundation
written by Doug Lea (dl@rocky.oswego.edu)
This file is part of the GNU C++ Library. This library is free
software; you can redistribute it and/or modify it under the terms of
the GNU Library General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version. This library is distributed in the hope
that it will be useful, but WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _VALUES_H_
#define _VALUES_H_
#define BITSPERBYTE 8
#define BITS(type) (BITSPERBYTE * (int)sizeof(type))
#define CHARBITS BITS(char)
#define SHORTBITS BITS(short)
#define INTBITS BITS(int)
#define LONGBITS BITS(long)
#define PTRBITS BITS(char*)
#define DOUBLEBITS BITS(double)
#define FLOATBITS BITS(float)
#define MINSHORT ((short)(1 << (SHORTBITS - 1)))
#define MININT (1 << (INTBITS - 1))
#define MINLONG (1L << (LONGBITS - 1))
#define MAXSHORT ((short)~MINSHORT)
#define MAXINT (~MININT)
#define MAXLONG (~MINLONG)
#define HIBITS MINSHORT
#define HIBITL MINLONG
#if defined(sun) || defined(hp300) || defined(hpux) || defined(masscomp) || defined(sgi)
#ifdef masscomp
#define MAXDOUBLE \
({ \
double maxdouble_val; \
\
__asm ("fmove%.d #0x7fefffffffffffff,%0" /* Max double */ \
: "=f" (maxdouble_val) \
: /* no inputs */); \
maxdouble_val; \
})
#define MAXFLOAT ((float) 3.40e+38)
#else
#define MAXDOUBLE 1.79769313486231470e+308
#define MAXFLOAT ((float)3.40282346638528860e+38)
#endif
#define MINDOUBLE 4.94065645841246544e-324
#define MINFLOAT ((float)1.40129846432481707e-45)
#define _IEEE 1
#define _DEXPLEN 11
#define _FEXPLEN 8
#define _HIDDENBIT 1
#define DMINEXP (-(DMAXEXP + DSIGNIF - _HIDDENBIT - 3))
#define FMINEXP (-(FMAXEXP + FSIGNIF - _HIDDENBIT - 3))
#define DMAXEXP ((1 << _DEXPLEN - 1) - 1 + _IEEE)
#define FMAXEXP ((1 << _FEXPLEN - 1) - 1 + _IEEE)
#elif defined(sony)
#define MAXDOUBLE 1.79769313486231470e+308
#define MAXFLOAT ((float)3.40282346638528860e+38)
#define MINDOUBLE 2.2250738585072010e-308
#define MINFLOAT ((float)1.17549435e-38)
#define _IEEE 1
#define _DEXPLEN 11
#define _FEXPLEN 8
#define _HIDDENBIT 1
#define DMINEXP (-(DMAXEXP + DSIGNIF - _HIDDENBIT - 3))
#define FMINEXP (-(FMAXEXP + FSIGNIF - _HIDDENBIT - 3))
#define DMAXEXP ((1 << _DEXPLEN - 1) - 1 + _IEEE)
#define FMAXEXP ((1 << _FEXPLEN - 1) - 1 + _IEEE)
#elif defined(sequent)
extern double _maxdouble, _mindouble;
extern float _maxfloat, _minfloat;
#define MAXDOUBLE _maxdouble
#define MAXFLOAT _maxfloat
#define MINDOUBLE _mindouble
#define MINFLOAT _minfloat
#define _IEEE 1
#define _DEXPLEN 11
#define _FEXPLEN 8
#define _HIDDENBIT 1
#define DMINEXP (-(DMAXEXP - 3))
#define FMINEXP (-(FMAXEXP - 3))
#define DMAXEXP ((1 << _DEXPLEN - 1) - 1 + _IEEE)
#define FMAXEXP ((1 << _FEXPLEN - 1) - 1 + _IEEE)
#elif defined(i386)
#define MAXDOUBLE 1.79769313486231570e+308
#define MAXFLOAT ((float)3.40282346638528860e+38)
#define MINDOUBLE 2.22507385850720140e-308
#define MINFLOAT ((float)1.17549435082228750e-38)
#define _IEEE 0
#define _DEXPLEN 11
#define _FEXPLEN 8
#define _HIDDENBIT 1
#define DMINEXP (-DMAXEXP)
#define FMINEXP (-FMAXEXP)
#define DMAXEXP ((1 << _DEXPLEN - 1) - 1 + _IEEE)
#define FMAXEXP ((1 << _FEXPLEN - 1) - 1 + _IEEE)
/* from Andrew Klossner <andrew%frip.wv.tek.com@relay.cs.net> */
#elif defined(m88k)
/* These are "good" guesses ...
I'll figure out the true mins and maxes later, at the time I find
out the mins and maxes that the compiler can tokenize. */
#define MAXDOUBLE 1.79769313486231e+308
#define MAXFLOAT ((float)3.40282346638528e+38)
#define MINDOUBLE 2.22507385850720e-308
#define MINFLOAT ((float)1.17549435082228e-38)
#define _IEEE 1
#define _DEXPLEN 11
#define _FEXPLEN 8
#define _HIDDENBIT 1
#define DMINEXP (1-DMAXEXP)
#define FMINEXP (1-FMAXEXP)
#define DMAXEXP ((1 << _DEXPLEN - 1) - 1 + _IEEE)
#define FMAXEXP ((1 << _FEXPLEN - 1) - 1 + _IEEE)
#elif defined(convex)
#define MAXDOUBLE 8.9884656743115785e+306
#define MAXFLOAT ((float) 1.70141173e+38)
#define MINDOUBLE 5.5626846462680035e-308
#define MINFLOAT ((float) 2.93873588e-39)
#define _IEEE 0
#define _DEXPLEN 11
#define _FEXPLEN 8
#define _HIDDENBIT 1
#define DMINEXP (-DMAXEXP)
#define FMINEXP (-FMAXEXP)
#define DMAXEXP ((1 << _DEXPLEN - 1) - 1 + _IEEE)
#define FMAXEXP ((1 << _FEXPLEN - 1) - 1 + _IEEE)
/* #elif defined(vax) */
/* use vax versions by default -- they seem to be the most conservative */
#else
#define MAXDOUBLE 1.701411834604692293e+38
#define MINDOUBLE (2.938735877055718770e-39)
#define MAXFLOAT 1.7014117331926443e+38
#define MINFLOAT 2.9387358770557188e-39
#define _IEEE 0
#define _DEXPLEN 8
#define _FEXPLEN 8
#define _HIDDENBIT 1
#define DMINEXP (-DMAXEXP)
#define FMINEXP (-FMAXEXP)
#define DMAXEXP ((1 << _DEXPLEN - 1) - 1 + _IEEE)
#define FMAXEXP ((1 << _FEXPLEN - 1) - 1 + _IEEE)
#endif
#define DSIGNIF (DOUBLEBITS - _DEXPLEN + _HIDDENBIT - 1)
#define FSIGNIF (FLOATBITS - _FEXPLEN + _HIDDENBIT - 1)
#define DMAXPOWTWO ((double)(1L << LONGBITS -2)*(1L << DSIGNIF - LONGBITS +1))
#define FMAXPOWTWO ((float)(1L << FSIGNIF - 1))
#endif /* !_VALUES_H_ */
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