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77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/****************************************************************
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*
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* math.h - math library
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*
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* February 1989
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* Mike Westerfield
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*
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* Copyright 1989, 1992
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* Byte Works, Inc.
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*
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****************************************************************/
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#ifndef __math__
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#define __math__
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typedef long double float_t;
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typedef long double double_t;
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#define HUGE_VAL 1e5000
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#define HUGE_VALF 1e5000F
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#define HUGE_VALL 1e5000L
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#define INFINITY 1e5000F
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#define NAN (0.0F/0.0F)
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#define FP_INFINITE 0xFE
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#define FP_NAN 0xFD
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#define FP_NORMAL 0x00
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#define FP_SUBNORMAL 0x01
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#define FP_ZERO 0xFF
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int __fpclassifyf(float);
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int __fpclassifyd(double);
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int __fpclassifyl(long double);
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int __signbit(long double);
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#define fpclassify(x) _Generic((x), \
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float: __fpclassifyf, \
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double: __fpclassifyd, \
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long double: __fpclassifyl)(x)
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#define isfinite(x) (((fpclassify(x) + 1) & 0xF0) == 0)
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#define isinf(x) (fpclassify(x) == FP_INFINITE)
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#define isnan(x) (fpclassify((long double)(x)) == FP_NAN)
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#define isnormal(x) (fpclassify(x) == FP_NORMAL)
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#define signbit(x) __signbit(x)
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#ifndef __KeepNamespacePure__
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#define arctan(x) atan(x)
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#endif
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double acos(double);
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double asin(double);
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double atan(double);
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double cos(double);
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double cosh(double);
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double exp(double);
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double log(double);
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double log10(double);
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double sin(double);
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double sinh(double);
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double sqrt(double);
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double tan(double);
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double tanh(double);
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double atan2(double, double);
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double ceil(double);
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double fabs(double);
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double floor(double);
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double fmod(double, double);
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double frexp(double, int *);
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double ldexp(double, int);
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double modf(double, double *);
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double pow(double, double);
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#endif
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