/* MATH.H * * Copyright (c) 1997-1999 Symbian Ltd. All rights reserved. */ #ifndef _MATH_H #ifdef __cplusplus extern "C" { #endif #define _MATH_H #include #include #include "_ansi.h" /* Reentrant ANSI C functions */ IMPORT_C double atan (double); IMPORT_C double cos (double); IMPORT_C double sin (double); IMPORT_C double tan (double); IMPORT_C double tanh (double); IMPORT_C double frexp (double, int *); IMPORT_C double modf (double, double *); IMPORT_C double ceil (double); IMPORT_C double fabs (double); IMPORT_C double floor (double); /* Non reentrant ANSI C functions. */ #ifndef _REENT_ONLY IMPORT_C double acos (double); IMPORT_C double asin (double); IMPORT_C double atan2 (double, double); IMPORT_C double cosh (double); IMPORT_C double sinh (double); IMPORT_C double exp (double); IMPORT_C double ldexp (double, int); IMPORT_C double log (double); IMPORT_C double log10 (double); IMPORT_C double pow (double, double); IMPORT_C double sqrt (double); IMPORT_C double fmod (double, double); #endif /* ! defined (_REENT_ONLY) */ /* Non ANSI functions provided by EPOC32 */ IMPORT_C double copysign(double, double); IMPORT_C double expm1 (double); IMPORT_C int finite (double); IMPORT_C int isnan (double); IMPORT_C int isinf (double); IMPORT_C double rint (double); IMPORT_C double scalbn (double, int); #ifndef _STRICT_ANSI /* Non ANSI double precision functions. */ extern double infinity (void); extern double nan (void); extern int ilogb (double); extern double asinh (double); extern double cbrt (double); extern double nextafter (double, double); extern double log1p (double); #ifndef _REENT_ONLY extern double acosh (double); extern double atanh (double); extern double remainder (double, double); extern double gamma (double); extern double gamma_r (double, int *); extern double lgamma (double); extern double lgamma_r (double, int *); extern double erf (double); extern double erfc (double); extern double y0 (double); extern double y1 (double); extern double yn (int, double); extern double j0 (double); extern double j1 (double); extern double jn (int, double); #define log2(x) (log (x) / M_LOG2_E) extern double hypot (double, double); extern double cabs(); extern double drem (double, double); #endif /* ! defined (_REENT_ONLY) */ /* Single precision versions of ANSI functions. */ extern float atanf (float); extern float cosf (float); extern float sinf (float); extern float tanf (float); extern float tanhf (float); extern float frexpf (float, int *); extern float modff (float, float *); extern float ceilf (float); extern float fabsf (float); extern float floorf (float); #ifndef _REENT_ONLY extern float acosf (float); extern float asinf (float); extern float atan2f (float, float); extern float coshf (float); extern float sinhf (float); extern float expf (float); extern float ldexpf (float, int); extern float logf (float); extern float log10f (float); extern float powf (float, float); extern float sqrtf (float); extern float fmodf (float, float); #endif /* ! defined (_REENT_ONLY) */ /* Other single precision functions. */ extern float infinityf (void); extern float nanf (void); extern int isnanf (float); extern int isinff (float); extern int finitef (float); extern float copysignf (float, float); extern int ilogbf (float); extern float asinhf (float); extern float cbrtf (float); extern float nextafterf (float, float); extern float rintf (float); extern float scalbnf (float, int); extern float log1pf (float); extern float expm1f (float); #ifndef _REENT_ONLY extern float acoshf (float); extern float atanhf (float); extern float remainderf (float, float); extern float gammaf (float); extern float gammaf_r (float, int *); extern float lgammaf (float); extern float lgammaf_r (float, int *); extern float erff (float); extern float erfcf (float); extern float y0f (float); extern float y1f (float); extern float ynf (int, float); extern float j0f (float); extern float j1f (float); extern float jnf (int, float); #define log2f(x) (logf (x) / (float) M_LOG2_E) extern float hypotf (float, float); extern float cabsf(); extern float dremf (float, float); #endif /* ! defined (_REENT_ONLY) */ /* The gamma functions use a global variable, signgam. */ extern int signgam; /* The exception structure passed to the matherr routine. */ struct exception { int type; char *name; double arg1; double arg2; double retval; int err; }; extern int matherr (struct exception *e); /* Values for the type field of struct exception. */ #define DOMAIN 1 #define SING 2 #define OVERFLOW 3 #define UNDERFLOW 4 #define TLOSS 5 #define PLOSS 6 /* Useful constants. */ #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_TWOPI (M_PI * 2.0) #define M_PI_2 1.57079632679489661923 #define M_PI_4 0.78539816339744830962 #define M_3PI_4 2.3561944901923448370E0 #define M_SQRTPI 1.77245385090551602792981 #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 M_LN2LO 1.9082149292705877000E-10 #define M_LN2HI 6.9314718036912381649E-1 #define M_SQRT3 1.73205080756887719000 #define M_IVLN10 0.43429448190325182765 /* 1 / log(10) */ #define M_LOG2_E 0.693147180559945309417 #define M_INVLN2 1.4426950408889633870E0 /* 1 / log(2) */ /* Global control over fdlibm error handling. */ enum __fdlibm_version { __fdlibm_ieee = -1, __fdlibm_svid, __fdlibm_xopen, __fdlibm_posix }; #define _LIB_VERSION_TYPE enum __fdlibm_version #define _LIB_VERSION __fdlib_version extern _LIB_VERSION_TYPE _LIB_VERSION; #define _IEEE_ __fdlibm_ieee #define _SVID_ __fdlibm_svid #define _XOPEN_ __fdlibm_xopen #define _POSIX_ __fdlibm_posix #endif /* ! defined (_STRICT_ANSI) */ #ifdef __cplusplus } #endif #endif /* _MATH_H */