/* Copyright (C) 2015 DJ Delorie, see COPYING.DJ for details */ /* Copyright (C) 2013 DJ Delorie, see COPYING.DJ for details */ /* Copyright (C) 2003 DJ Delorie, see COPYING.DJ for details */ /* Copyright (C) 1999 DJ Delorie, see COPYING.DJ for details */ /* Copyright (C) 1998 DJ Delorie, see COPYING.DJ for details */ /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ #ifndef __dj_include_math_h_ #define __dj_include_math_h_ #ifdef _USE_LIBM_MATH_H #include #else #ifdef __cplusplus extern "C" { #endif #ifndef __dj_ENFORCE_ANSI_FREESTANDING extern double __dj_huge_val; #define HUGE_VAL __dj_huge_val double acos(double _x); double asin(double _x); double atan(double _x); double atan2(double _y, double _x); double ceil(double _x); double cos(double _x); double cosh(double _x); double exp(double _x); double fabs(double _x); double floor(double _x); double fmod(double _x, double _y); double frexp(double _x, int *_pexp); double ldexp(double _x, int _exp); double log(double _y); double log10(double _x); double log2(double _x); double modf(double _x, double *_pint); double pow(double _x, double _y); double sin(double _x); double sinh(double _x); double sqrt(double _x); double tan(double _x); double tanh(double _x); /* The C++ standard has overloaded versions of cos, etc. for floats * and long doubles. libstdc++ calls the C99-standardised float * and long double versions of cos, etc. in the global namespace * to provide the overloaded versions. So we place the float * and long double versions in the global namespace for C++ * even when __STRICT_ANSI__ is defined. */ #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \ || !defined(__STRICT_ANSI__) \ || defined(__cplusplus) long double modfl(long double _x, long double *_pint); /* These are in libm.a (Cygnus). You must link -lm to get these */ /* See libm/math.h for comments */ extern float acosf(float); extern float asinf(float); extern float atanf(float); extern float atan2f(float, float); extern float cosf(float); extern float sinf(float); extern float tanf(float); extern float coshf(float); extern float sinhf(float); extern float tanhf(float); extern float expf(float); extern float frexpf(float, int *); extern float ldexpf(float, int); extern float logf(float); extern float log10f(float); extern float log2f(float); extern float modff(float, float *); extern float powf(float, float); extern float sqrtf(float); extern float ceilf(float); extern float fabsf(float); extern float floorf(float); extern float fmodf(float, float); /* End libm.a. */ #endif #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) \ || !defined(__STRICT_ANSI__) || defined(__cplusplus) extern float __dj_huge_valf; extern long double __dj_huge_vall; #define HUGE_VALF __dj_huge_valf #define HUGE_VALL __dj_huge_vall #define INFINITY HUGE_VALF extern float __dj_nan; #define NAN __dj_nan #define FP_INFINITE 0x00000001 #define FP_NAN 0x00000002 #define FP_NORMAL 0x00000004 #define FP_SUBNORMAL 0x00000008 #define FP_ZERO 0x00000010 /* Extended with Unnormals (for long doubles). */ #define FP_UNNORMAL 0x00010000 #define fpclassify(x) (__extension__ ({__typeof__(x) __xfp = (x); \ (sizeof(__xfp) == sizeof(float)) ? __fpclassifyf(__xfp) : \ (sizeof(__xfp) == sizeof(double)) ? __fpclassifyd(__xfp) : \ __fpclassifyld(__xfp); \ })) #define signbit(x) (__extension__ ({__typeof__(x) __xsb = (x); \ (sizeof(__xsb) == sizeof(float)) ? __signbitf(__xsb) : \ (sizeof(__xsb) == sizeof(double)) ? __signbitd(__xsb) : \ __signbitld(__xsb); \ })) #define isfinite(x) ((fpclassify(x) & (FP_NORMAL | FP_SUBNORMAL | FP_ZERO)) != 0) #define isinf(x) (fpclassify(x) == FP_INFINITE) #define isnan(x) (fpclassify(x) == FP_NAN) #define isnormal(x) (fpclassify(x) == FP_NORMAL) #define isgreater(x, y) (__extension__ ({__typeof__(x) __x_ig = (x); \ __typeof__(y) __y_ig = (y); \ !isunordered(__x_ig, __y_ig) && (__x_ig > __y_ig); \ })) #define isgreaterequal(x, y) (__extension__ ({__typeof__(x) __x_ige = (x); \ __typeof__(y) __y_ige = (y); \ !isunordered(__x_ige, __y_ige) && (__x_ige >= __y_ige); \ })) #define isless(x, y) (__extension__ ({__typeof__(x) __x_il = (x); \ __typeof__(y) __y_il = (y); \ !isunordered(__x_il, __y_il) && (__x_il < __y_il); \ })) #define islessequal(x, y) (__extension__ ({__typeof__(x) __x_ile = (x); \ __typeof__(y) __y_ile = (y); \ !isunordered(__x_ile, __y_ile) && (__x_ile <= __y_ile); \ })) #define islessgreater(x, y) (__extension__ ({__typeof__(x) __x_ilg = (x); \ __typeof__(y) __y_ilg = (y); \ !isunordered(__x_ilg, __y_ilg) && (__x_ilg < __y_ilg || __x_ilg > __y_ilg); \ })) #define isunordered(x, y) (__extension__ ({__typeof__(x) __x_iu = (x); \ __typeof__(y) __y_iu = (y); \ (fpclassify(__x_iu) == FP_NAN) || (fpclassify(__y_iu) == FP_NAN); \ })) int __fpclassifyf(float) __attribute__((const)); int __fpclassifyd(double) __attribute__((const)); int __fpclassifyld(long double) __attribute__((const)); double nan(const char *); float nanf(const char *); long double nanl(const char *); int __signbitf(float x) __attribute__((const)); int __signbitd(double x) __attribute__((const)); int __signbitld(long double x) __attribute__((const)); #define MATH_ERRNO 1 #define MATH_ERREXCEPT 2 int __get_math_errhandling(void); #define math_errhandling (__get_math_errhandling()) double acosh(double _x); double asinh(double _x); double atanh(double _x); double cbrt(double _x); double exp2(double _x); double expm1(double _x); double hypot(double _x, double _y); double log1p(double _x); /* These are in libm.a (Cygnus). You must link -lm to get these */ /* See libm/math.h for comments */ extern double erf(double); extern double erfc(double); extern double lgamma(double); extern double logb(double); extern double nextafter(double, double); extern double remainder(double, double); extern double copysign(double, double); extern int ilogb(double); extern double rint(double); extern long double rintl(long double); extern double scalbn(double, int); extern double trunc(double); extern long double truncl(long double); extern long int lrint(double); extern long int lrintl(long double); extern long long int llrint(double); extern long long int llrintl(long double); extern double round(double); extern long double roundl(long double); extern long int lround(double); extern long int lroundl(long double); extern long long int llround(double); extern long long int llroundl(long double); extern float erff(float); extern float erfcf(float); extern float hypotf(float, float); extern float lgammaf(float); extern float acoshf(float); extern float asinhf(float); extern float atanhf(float); extern float cbrtf(float); extern float logbf(float); extern float nextafterf(float, float); extern float remainderf(float, float); extern float scalbf(float, float); extern float copysignf(float, float); extern int ilogbf(float); extern float rintf(float); extern float scalbnf(float, int); extern float expm1f(float); extern float log1pf(float); extern float truncf(float); extern long int lrintf(float); extern long long int llrintf(float); extern float roundf(float); extern long int lroundf(float); extern long long int llroundf(float); extern int isinfl(long double); extern int isnanl(long double); extern int finitel(long double); /* End libm.a. */ #endif /* (__STDC_VERSION__ >= 199901L) || !__STRICT_ANSI__ */ #ifndef __STRICT_ANSI__ #ifndef _POSIX_SOURCE #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 #define PI M_PI #define PI2 M_PI_2 double exp10(double _x); double pow10(double _x); double pow2(double _x); double powi(double _base, int _exp); void sincos(double _x, double *_sin, double *_cos); /* These are in libm.a (Cygnus). You must link -lm to get these */ /* See libm/math.h for comments */ #ifndef __cplusplus struct exception { int type; const char *name; double arg1; double arg2; double retval; int err; }; #endif extern double gamma(double); extern int finite(double); extern double j0(double); extern double j1(double); extern double jn(int, double); extern double y0(double); extern double y1(double); extern double yn(int, double); extern double scalb(double, double); #ifndef __cplusplus extern int matherr(struct exception *); #endif extern double significand(double); extern double drem(double, double); extern double gamma_r(double, int *); extern double lgamma_r(double, int *); extern float gammaf(float); extern int isinff(float); extern int isnanf(float); extern int finitef(float); extern float j0f(float); extern float j1f(float); extern float jnf(int, float); extern float y0f(float); extern float y1f(float); extern float ynf(int, float); extern float significandf(float); extern float dremf(float, float); extern float gammaf_r(float, int *); extern float lgammaf_r(float, int *); #endif /* !_POSIX_SOURCE */ #endif /* !__STRICT_ANSI__ */ #endif /* !__dj_ENFORCE_ANSI_FREESTANDING */ #ifndef __dj_ENFORCE_FUNCTION_CALLS #endif /* !__dj_ENFORCE_FUNCTION_CALLS */ #ifdef __cplusplus } #endif #endif /* _USE_LIBM_MATH_H */ #endif /* !__dj_include_math_h_ */