ciabatta/inc/math.h

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#pragma once
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typedef float float_t;
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typedef double double_t;
#ifndef _HUGE_ENUF
#define _HUGE_ENUF 1e+300 // _HUGE_ENUF*_HUGE_ENUF must overflow
#endif
#define INFINITY ((float)(_HUGE_ENUF * _HUGE_ENUF))
#define HUGE_VAL ((double)INFINITY)
#define HUGE_VALF ((float)INFINITY)
#define NAN (-(float)(INFINITY * 0.0F))
#define FP_ILOGBNAN (-1-0x7fffffff)
#define FP_ILOGB0 FP_ILOGBNAN
#define MATH_ERRNO 1
#define MATH_ERREXCEPT 2
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#define math_errhandling (MATH_ERRNO | MATH_ERREXCEPT)
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// Classification
#define FP_INFINITE 0
#define FP_NAN 1
#define FP_NORMAL 2
#define FP_SUBNORMAL 3
#define FP_ZERO 4
int _fpclassify(double);
int _fpclassifyf(float);
int _fpclassifyl(long double);
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#define fpclassify(x) (sizeof(x)==4?_fpclassifyf(x) \
:sizeof(x)==8?_fpclassify(x) \
: _fpclassifyl(x) )
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#define isfinite(x) (fpclassify(x) != FP_INFINITE && fpclassify(x) != FP_NAN)
#define isinf(x) (fpclassify(x) == FP_INFINITE)
#define isnan(x) (fpclassify(x) == FP_NAN)
#define isnormal(x) (fpclassify(x) == FP_NORMAL)
// signbit shit
int _signbit(double);
int _signbitf(float);
int _signbitl(long double);
#define signbit(x) (sizeof(x) == sizeof(float) ? _signbitf(x) \
:sizeof(x) == sizeof(double) ? _signbit(x) \
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: _signbitl(x) )
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// Ordering
#define isunordered(x,y) (isnan((x)) ? ((void)(y),1) : isnan((y)))
#define isgreater(x,y) (!isunordered(x,y) && ((x) > (y)))
#define isgreaterequal(x,y) (!isunordered(x,y) && ((x) >= (y)))
#define isless(x,y) (!isunordered(x,y) && ((x) < (y)))
#define islessequal(x,y) (!isunordered(x,y) && ((x) <= (y)))
#define islessgreater(x,y) (!isunordered(x,y) && ((x) != (y)))
#if defined(_USE_MATH_DEFINES)
#define M_E 2.7182818284590452354
#define M_LOG2E 1.4426950408889634074
#define M_LOG10E 0.43429448190325182765
#define M_LN2 0.69314718055994530942
#define M_LN10 2.30258509299404568402
#define M_PI 3.14159265358979323846
#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_SQRT2 1.41421356237309504880
#define M_SQRT1_2 0.70710678118654752440
#endif
// Floating-point function prototypes
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double acos (double);
float acosf (float);
long double acosl (long double);
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double acosh (double);
float acoshf (float);
long double acoshl (long double);
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double asin (double);
float asinf (float);
long double asinl (long double);
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double asinh (double);
float asinhf (float);
long double asinhl (long double);
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double atan (double);
float atanf (float);
long double atanl (long double);
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double atan2 (double, double);
float atan2f (float, float);
long double atan2l (long double, long double);
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double atanh (double);
float atanhf (float);
long double atanhl (long double);
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double cbrt (double);
float cbrtf (float);
long double cbrtl (long double);
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double ceil (double);
float ceilf (float);
long double ceill (long double);
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double copysign (double, double);
float copysignf (float, float);
long double copysignl (long double, long double);
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double cos (double);
float cosf (float);
long double cosl (long double);
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double cosh (double);
float coshf (float);
long double coshl (long double);
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double erf (double);
float erff (float);
long double erfl (long double);
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double erfc (double);
float erfcf (float);
long double erfcl (long double);
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double exp (double);
float expf (float);
long double expl (long double);
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double exp2 (double);
float exp2f (float);
long double exp2l (long double);
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double expm1 (double);
float expm1f (float);
long double expm1l (long double);
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double fabs (double);
float fabsf (float);
long double fabsl (long double);
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double fdim (double, double);
float fdimf (float, float);
long double fdiml (long double, long double);
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double floor (double);
float floorf (float);
long double floorl (long double);
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double fma (double, double, double);
float fmaf (float, float, float);
long double fmal (long double, long double, long double);
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double fmax (double, double);
float fmaxf (float, float);
long double fmaxl (long double, long double);
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double fmin (double, double);
float fminf (float, float);
long double fminl (long double, long double);
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double fmod (double, double);
float fmodf (float, float);
long double fmodl (long double, long double);
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double frexp (double, int *);
float frexpf (float, int *);
long double frexpl (long double, int *);
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double hypot (double, double);
float hypotf (float, float);
long double hypotl (long double, long double);
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int ilogb (double);
int ilogbf (float);
int ilogbl (long double);
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double ldexp (double, int);
float ldexpf (float, int);
long double ldexpl (long double, int);
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double lgamma (double);
float lgammaf (float);
long double lgammal (long double);
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long long llrint (double);
long long llrintf (float);
long long llrintl (long double);
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long long llround (double);
long long llroundf (float);
long long llroundl (long double);
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double log (double);
float logf (float);
long double logl (long double);
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double log10 (double);
float log10f (float);
long double log10l (long double);
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double log1p (double);
float log1pf (float);
long double log1pl (long double);
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double log2 (double);
float log2f (float);
long double log2l (long double);
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double logb (double);
float logbf (float);
long double logbl (long double);
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long lrint (double);
long lrintf (float);
long lrintl (long double);
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long lround (double);
long lroundf (float);
long lroundl (long double);
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double modf (double, double *);
float modff (float, float *);
long double modfl (long double, long double *);
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double nan (const char *);
float nanf (const char *);
long double nanl (const char *);
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double nearbyint (double);
float nearbyintf (float);
long double nearbyintl (long double);
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double nextafter (double, double);
float nextafterf (float, float);
long double nextafterl (long double, long double);
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double nexttoward (double, long double);
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float nexttowardf(float, long double);
long double nexttowardl(long double, long double);
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double pow (double, double);
float powf (float, float);
long double powl (long double, long double);
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double remainder (double, double);
float remainderf (float, float);
long double remainderl (long double, long double);
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double remquo (double, double, int *);
float remquof (float, float, int *);
long double remquol (long double, long double, int *);
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double rint (double);
float rintf (float);
long double rintl (long double);
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double round (double);
float roundf (float);
long double roundl (long double);
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double scalbln (double, long);
float scalblnf (float, long);
long double scalblnl (long double, long);
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double scalbn (double, int);
float scalbnf (float, int);
long double scalbnl (long double, int);
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double sin (double);
float sinf (float);
long double sinl (long double);
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double sinh (double);
float sinhf (float);
long double sinhl (long double);
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double sqrt (double);
float sqrtf (float);
long double sqrtl (long double);
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double tan (double);
float tanf (float);
long double tanl (long double);
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double tanh (double);
float tanhf (float);
long double tanhl (long double);
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double tgamma (double);
float tgammaf (float);
long double tgammal (long double);
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double trunc (double);
float truncf (float);
long double truncl (long double);
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