mirror of
https://github.com/pocketpy/pocketpy
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239 lines
6.6 KiB
C
239 lines
6.6 KiB
C
#ifndef _MATH_H
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#define _MATH_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "features/features.h"
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#if defined(_WIN32) || defined(_WIN64)
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#if defined _M_IX86 && _M_IX86_FP < 2 && !defined _M_FP_FAST
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typedef long double float_t;
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typedef long double double_t;
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#else
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typedef float float_t;
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typedef double double_t;
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#endif
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#else
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#define __NEED_float_t
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#define __NEED_double_t
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// #include <bits/alltypes.h>
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typedef float float_t;
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typedef double double_t;
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#endif
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#ifndef _HUGE_ENUF
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#define _HUGE_ENUF 1e+300 // _HUGE_ENUF*_HUGE_ENUF must overflow
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#endif
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#define INFINITY ((float)(_HUGE_ENUF * _HUGE_ENUF))
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#define HUGE_VALF INFINITY
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#define HUGE_VAL ((double)INFINITY)
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#define HUGE_VALL ((long double)INFINITY)
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#define NAN ((float)(INFINITY * 0.0F))
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#define MATH_ERRNO 1
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#define MATH_ERREXCEPT 2
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#define math_errhandling 2
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#define FP_ILOGBNAN (-1-0x7fffffff)
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#define FP_ILOGB0 FP_ILOGBNAN
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#define ULLONG_NSHIFT 0xFFFFFFFFFFFFFFFF
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#define ULLONG_SHIFT1 0x7FFFFFFFFFFFFFFF
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#define FP_NAN 0
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#define FP_INFINITE 1
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#define FP_ZERO 2
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#define FP_SUBNORMAL 3
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#define FP_NORMAL 4
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#ifdef __FP_FAST_FMA
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#define FP_FAST_FMA 1
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#endif
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#ifdef __FP_FAST_FMAF
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#define FP_FAST_FMAF 1
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#endif
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#ifdef __FP_FAST_FMAL
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#define FP_FAST_FMAL 1
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#endif
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#define FLT_EVAL_METHOD 0
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int __fpclassify(double);
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int __fpclassifyf(float);
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int __fpclassifyl(long double);
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static __inline unsigned __FLOAT_BITS(float __f)
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{
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union {float __f; unsigned __i;} __u;
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__u.__f = __f;
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return __u.__i;
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}
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static __inline unsigned long long __DOUBLE_BITS(double __f)
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{
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union {double __f; unsigned long long __i;} __u;
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__u.__f = __f;
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return __u.__i;
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}
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#define fpclassify(x) ( \
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sizeof(x) == sizeof(float) ? __fpclassifyf(x) : \
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sizeof(x) == sizeof(double) ? __fpclassify(x) : \
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__fpclassifyl(x) )
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#define isinf(x) ( \
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sizeof(x) == sizeof(float) ? (__FLOAT_BITS(x) & 0x7fffffff) == 0x7f800000 : \
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sizeof(x) == sizeof(double) ? (__DOUBLE_BITS(x) & ULLONG_SHIFT1) == 0x7ffULL<<52 : \
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__fpclassifyl(x) == FP_INFINITE)
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#define isnan(x) ( \
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sizeof(x) == sizeof(float) ? (__FLOAT_BITS(x) & 0x7fffffff) > 0x7f800000 : \
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sizeof(x) == sizeof(double) ? (__DOUBLE_BITS(x) & ULLONG_SHIFT1) > 0x7ffULL<<52 : \
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__fpclassifyl(x) == FP_NAN)
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#define isnormal(x) ( \
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sizeof(x) == sizeof(float) ? ((__FLOAT_BITS(x)+0x00800000) & 0x7fffffff) >= 0x01000000 : \
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sizeof(x) == sizeof(double) ? ((__DOUBLE_BITS(x)+(1ULL<<52)) & ULLONG_SHIFT1) >= 1ULL<<53 : \
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__fpclassifyl(x) == FP_NORMAL)
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#define isfinite(x) ( \
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sizeof(x) == sizeof(float) ? (__FLOAT_BITS(x) & 0x7fffffff) < 0x7f800000 : \
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sizeof(x) == sizeof(double) ? (__DOUBLE_BITS(x) & ULLONG_SHIFT1) < 0x7ffULL<<52 : \
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__fpclassifyl(x) > FP_INFINITE)
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int __signbit(double);
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int __signbitf(float);
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int __signbitl(long double);
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#define signbit(x) ( \
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sizeof(x) == sizeof(float) ? (int)(__FLOAT_BITS(x)>>31) : \
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sizeof(x) == sizeof(double) ? (int)(__DOUBLE_BITS(x)>>63) : \
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__signbitl(x) )
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#define isunordered(x,y) (isnan((x)) ? ((void)(y),1) : isnan((y)))
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#define __ISREL_DEF(rel, op, type) \
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static __inline int __is##rel(type __x, type __y) \
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{ return !isunordered(__x,__y) && __x op __y; }
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__ISREL_DEF(lessf, <, float_t)
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__ISREL_DEF(less, <, double_t)
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__ISREL_DEF(lessl, <, long double)
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__ISREL_DEF(lessequalf, <=, float_t)
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__ISREL_DEF(lessequal, <=, double_t)
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__ISREL_DEF(lessequall, <=, long double)
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__ISREL_DEF(lessgreaterf, !=, float_t)
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__ISREL_DEF(lessgreater, !=, double_t)
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__ISREL_DEF(lessgreaterl, !=, long double)
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__ISREL_DEF(greaterf, >, float_t)
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__ISREL_DEF(greater, >, double_t)
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__ISREL_DEF(greaterl, >, long double)
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__ISREL_DEF(greaterequalf, >=, float_t)
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__ISREL_DEF(greaterequal, >=, double_t)
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__ISREL_DEF(greaterequall, >=, long double)
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#define __tg_pred_2(x, y, p) ( \
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sizeof((x)+(y)) == sizeof(float) ? p##f(x, y) : \
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sizeof((x)+(y)) == sizeof(double) ? p(x, y) : \
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p##l(x, y) )
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#define isless(x, y) __tg_pred_2(x, y, __isless)
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#define islessequal(x, y) __tg_pred_2(x, y, __islessequal)
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#define islessgreater(x, y) __tg_pred_2(x, y, __islessgreater)
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#define isgreater(x, y) __tg_pred_2(x, y, __isgreater)
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#define isgreaterequal(x, y) __tg_pred_2(x, y, __isgreaterequal)
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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 atan2(double, double);
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double cbrt(double);
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double ceil(double);
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double cos(double);
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double degrees(double);
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double exp(double);
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double fabs(double);
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int factorial(int);
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double floor(double);
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double fmax(double, double);
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double fmin(double, double);
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double fmod(double, double);
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double fsum(double*, int);
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int gcd(int, int);
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double log(double);
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double log10(double);
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double log2(double);
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double modf(double, double *);
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double pow(double, double);
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double radians(double);
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double scalbn(double, int);
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double sin(double);
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double sqrt(double);
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double tan(double);
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double trunc(double);
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#undef MAXFLOAT
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#define MAXFLOAT 3.40282346638528859812e+38F
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#define M_DEG2RAD 0.017453292519943295 /* pi/180 */
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#define M_E 2.7182818284590452354 /* e */
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#define M_LOG2E 1.4426950408889634074 /* log_2 e */
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#define M_LOG10E 0.43429448190325182765 /* log_10 e */
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#define M_LN2 0.69314718055994530942 /* log_e 2 */
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#define M_LN10 2.30258509299404568402 /* log_e 10 */
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#define M_PI 3.14159265358979323846 /* pi */
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#define M_PI_2 1.57079632679489661923 /* pi/2 */
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#define M_PI_4 0.78539816339744830962 /* pi/4 */
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#define M_1_PI 0.31830988618379067154 /* 1/pi */
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#define M_2_PI 0.63661977236758134308 /* 2/pi */
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#define M_RAD2DEG 57.29577951308232 /* 180/pi */
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#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
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#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
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#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
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// extern int signgam;
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// double j0(double);
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// double j1(double);
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// double jn(int, double);
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// double y0(double);
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// double y1(double);
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// double yn(int, double);
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#define HUGE 3.40282346638528859812e+38F
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// double drem(double, double);
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// float dremf(float, float);
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// int finite(double);
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// int finitef(float);
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// double scalb(double, double);
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// float scalbf(float, float);
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// double significand(double);
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// float significandf(float);
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// double lgamma_r(double, int*);
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// float lgammaf_r(float, int*);
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// float j0f(float);
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// float j1f(float);
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// float jnf(int, float);
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// float y0f(float);
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// float y1f(float);
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// float ynf(int, float);
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#ifdef __cplusplus
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}
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#endif
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#endif
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