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- /* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved.
- *
- * File: <ansi/sparc/math.h>
- */
-
-
- /*
- * Constants.
- */
-
- //#define HUGE_VAL (__infinity()) /* Produces IEEE Infinity. */
- #define HUGE_VAL (1e999)
-
- #ifndef __STRICT_ANSI__
-
- //#define HUGE (infinity()) /* For historical compatibility. */
- #define HUGE HUGE_VAL
- #define NAN (HUGE/HUGE) /*FIXME: not in sun sources */
-
- /* These values work with any binary representation of integers
- * where the high-order bit contains the sign. */
-
- /* a number used normally for size of a shift */
- #define BITSPERBYTE 8
- #define BITS(type) (BITSPERBYTE * (int)sizeof(type))
-
- /* short, regular and long ints with only the high-order bit turned on */
- #define HIBITS ((short)(1 << BITS(short) - 1))
- #define HIBITI (1 << BITS(int) - 1)
- #define HIBITL (1L << BITS(long) - 1)
-
- /* largest short, regular and long int */
- #define MAXSHORT ((short)~HIBITS)
- #define MAXINT (~HIBITI)
- #define MAXLONG (~HIBITL)
- #define MAXCHAR ((char)0x7f) /*FIXME: not in sun sources */
-
- #define MINCHAR ((char)0x80) /*FIXME: not in sun sources */
- #define MINSHORT ((short)0x8000) /*FIXME: not in sun sources */
- #define MININT ((int)0x80000000) /* max negative 32-bit integer */ /*FIXME: not in sun sources */
- #define MINLONG ((long)0x80000000) /*FIXME: not in sun sources */
-
- /* various values that describe the binary floating-point representation
- * _EXPBASE - the exponent base
- * DMAXEXP - the maximum exponent of a double (as returned by frexp())
- * FMAXEXP - the maximum exponent of a float (as returned by frexp())
- * DMINEXP - the minimum exponent of a double (as returned by frexp())
- * FMINEXP - the minimum exponent of a float (as returned by frexp())
- * MAXDOUBLE - the largest double
- ((_EXPBASE ** DMAXEXP) * (1 - (_EXPBASE ** -DSIGNIF)))
- * MAXFLOAT - the largest float
- ((_EXPBASE ** FMAXEXP) * (1 - (_EXPBASE ** -FSIGNIF)))
- * MINDOUBLE - the smallest double (_EXPBASE ** (DMINEXP - 1))
- * MINFLOAT - the smallest float (_EXPBASE ** (FMINEXP - 1))
- * DSIGNIF - the number of significant bits in a double
- * FSIGNIF - the number of significant bits in a float
- * DMAXPOWTWO - the largest power of two exactly representable as a double
- * FMAXPOWTWO - the largest power of two exactly representable as a float
- * _IEEE - 1 if IEEE standard representation is used
- * _DEXPLEN - the number of bits for the exponent of a double
- * _FEXPLEN - the number of bits for the exponent of a float
- * _HIDDENBIT - 1 if high-significance bit of mantissa is implicit
- * LN_MAXDOUBLE - the natural log of the largest double -- log(MAXDOUBLE)
- * LN_MINDOUBLE - the natural log of the smallest double -- log(MINDOUBLE)
- * LN_MAXFLOAT - the natural log of the largest float
- * LN_MINFLOAT - the natural log of the smallest float
- */
- #define MAXDOUBLE 1.797693134862315708e+308
- #define MAXFLOAT ((float)3.40282346638528860e+38)
- #define MINDOUBLE 4.94065645841246544e-324
- #define MINFLOAT ((float)1.40129846432481707e-45)
- #define _IEEE 1
- #define _DEXPLEN 11
- #define _HIDDENBIT 1
- #define DMINEXP (-(DMAXEXP + DSIGNIF - _HIDDENBIT - 3))
- #define FMINEXP (-(FMAXEXP + FSIGNIF - _HIDDENBIT - 3))
- #define LN_MAXFLOAT 8.8722839052068e+01
- #define LN_MINFLOAT -1.03278929903432e+02
- #define _LENBASE 1
- #define _EXPBASE (1 << _LENBASE)
- #define _FEXPLEN 8
- #define DSIGNIF (BITS(double) - _DEXPLEN + _HIDDENBIT - 1)
- #define FSIGNIF (BITS(float) - _FEXPLEN + _HIDDENBIT - 1)
- #define DMAXPOWTWO ((double)(1L << BITS(long) - 2) * \
- (1L << DSIGNIF - BITS(long) + 1))
- #define FMAXPOWTWO ((float)(1L << FSIGNIF - 1))
- #define DMAXEXP ((1 << _DEXPLEN - 1) - 1 + _IEEE)
- #define FMAXEXP ((1 << _FEXPLEN - 1) - 1 + _IEEE)
- #define LN_MAXDOUBLE (M_LN2 * DMAXEXP)
- #define LN_MINDOUBLE (M_LN2 * (DMINEXP - 1))
-
- #define M_LN2 0.69314718055994530942
- #define M_PI 3.14159265358979323846
- #define M_SQRT2 1.41421356237309504880
-
- #define M_E 2.7182818284590452354
- #define M_LOG2E 1.4426950408889634074
- #define M_LOG10E 0.43429448190325182765
- #define M_LN10 2.30258509299404568402
- #define M_PI_2 1.57079632679489661923
- #define M_PI_4 0.78539816339744830962
- #define M_1_PI 0.31830988618379067154
- #define M_2_PI 0.63661977236758134308
- #define M_2_SQRTPI 1.12837916709551257390
- #define M_SQRT1_2 0.70710678118654752440
-
-
- #endif /* __STRICT_ANSI__ */
-