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https://github.com/UberGames/RPG-X2.git
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154 lines
3.8 KiB
C
154 lines
3.8 KiB
C
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/* math.h -- Definitions for the math floating point package. */
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#ifndef _MATH_H_INCLUDED
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#define _MATH_H_INCLUDED
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#ifndef HUGE_VAL
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#define HUGE_VAL (*HUGE_dll)
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extern double *HUGE_dll;
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#endif /* ! defined (HUGE_VAL) */
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/* Reentrant ANSI C functions. */
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extern double atan(double);
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#if __LCCOPTIMLEVEL > 0
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extern double _stdcall _fcos(double);
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extern double _stdcall _fsin(double);
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#define cos _fcos
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#define sin _fsin
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#else
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extern double cos(double);
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extern double sin(double);
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#endif
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extern double tan(double);
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extern double tanh(double);
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extern double frexp(double, int *);
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extern double modf(double, double *);
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extern double ceil(double);
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extern double cbrt(double);
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#if __LCCOPTIMLEVEL > 0
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extern double _stdcall _fabs(double);
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#define fabs _fabs
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#else
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extern double fabs(double);
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#endif
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extern double floor(double);
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extern double acos (double);
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extern double asin (double);
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extern double atan2 (double, double);
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extern double cosh (double);
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extern double sinh (double);
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extern double exp(double);
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extern double ldexp(double, int);
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extern double log(double);
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extern double log10(double);
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extern double pow(double, double);
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extern double scalbn(double,int);
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#if __LCCOPTIMLEVEL > 0
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extern double _stdcall _fsqrt(double);
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#define sqrt _fsqrt
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#else
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extern double sqrt(double);
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#endif
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extern double fmod(double, double);
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extern double atof(const char *);
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/* Non ANSI double precision functions. */
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extern double infinity(void);
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extern int isnan (double);
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extern int finite (double);
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#define isnormal(a) (isnan(a) ? 0 : (a == 0.0) ? 0 : 1)
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extern double copysign(double, double);
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int ilogb(double);
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double logb(double);
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double erf(double);
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double erfc(double);
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#define FP_ILOGB0 0x80000000
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#ifdef __LCC__
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extern int _stdcall _signbit(double);
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#define signbit _signbit
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#endif
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extern double asinh (double);
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extern double nextafter (double, double);
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extern double acosh (double);
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extern double atanh(double);
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extern double lgamma (double);
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extern double y0 (double);
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extern double y1 (double);
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extern double yn(int, double);
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extern double j0(double);
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extern double j1 (double);
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extern double jn (int, double);
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#define log2(x) (log (x) / M_LOG2_E)
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extern double hypot (double, double);
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#define _hypot hypot
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extern int _stdcall rint(double);
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#define rint _rint
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extern int isinf(double);
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#define isfinite(d) ((isinf(d)||isnan(d))?0:1)
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#ifndef __COMPLEX_DEFINED__
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struct _complex {
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double x,y;
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};
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#define __COMPLEX_DEFINED
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#endif
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extern double cabs(struct _complex);
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/* The exception structure passed to the matherr routine. */
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struct exception
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{
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int type;
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char *name;
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double arg1;
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double arg2;
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double retval;
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int err;
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};
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extern int matherr (struct exception *e);
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/* Values for the type field of struct exception. */
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#define DOMAIN 1
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#define SING 2
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#define OVERFLOW 3
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#define UNDERFLOW 4
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#define TLOSS 5
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#define PLOSS 6
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/* Useful constants. */
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#define M_E 2.7182818284590452354
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#define M_LOG2E 1.4426950408889634074
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#define M_LOG10E 0.43429448190325182765
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#define M_LN2 0.69314718055994530942
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#define M_LN10 2.30258509299404568402
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#define M_PI 3.14159265358979323846
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#define M_TWOPI (M_PI * 2.0)
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#define M_PI_2 1.57079632679489661923
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#define M_PI_4 0.78539816339744830962
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#define M_3PI_4 2.3561944901923448370E0
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#define M_SQRTPI 1.77245385090551602792981
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#define M_1_PI 0.31830988618379067154
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#define M_2_PI 0.63661977236758134308
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#define M_2_SQRTPI 1.12837916709551257390
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#define M_SQRT2 1.41421356237309504880
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#define M_SQRT1_2 0.70710678118654752440
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#define M_LN2LO 1.9082149292705877000E-10
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#define M_LN2HI 6.9314718036912381649E-1
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#define M_SQRT3 1.73205080756887719000
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#define M_IVLN10 0.43429448190325182765 /* 1 / log(10) */
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#define M_LOG2_E 0.693147180559945309417
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#define M_INVLN2 1.4426950408889633870E0 /* 1 / log(2) */
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#endif /* _MATH_H_ */
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