include/msvcrt/math.h

   1 /*
   2  * Math functions.
   3  *
   4  * Derived from the mingw header written by Colin Peters.
   5  * Modified for Wine use by Hans Leidekker.
   6  * This file is in the public domain.
   7  */
   8
   9 #ifndef __WINE_MATH_H
  10 #define __WINE_MATH_H
  11
  12 #include <corecrt.h>
  13
  14 #include <pshpack8.h>
  15
  16 #ifdef __cplusplus
  17 extern "C" {
  18 #endif
  19
  20 #define _DOMAIN         1       /* domain error in argument */
  21 #define _SING           2       /* singularity */
  22 #define _OVERFLOW       3       /* range overflow */
  23 #define _UNDERFLOW      4       /* range underflow */
  24 #define _TLOSS          5       /* total loss of precision */
  25 #define _PLOSS          6       /* partial loss of precision */
  26
  27 #ifndef _EXCEPTION_DEFINED
  28 #define _EXCEPTION_DEFINED
  29 struct _exception
  30 {
  31   int     type;
  32   char    *name;
  33   double  arg1;
  34   double  arg2;
  35   double  retval;
  36 };
  37 #endif /* _EXCEPTION_DEFINED */
  38
  39 #ifndef _COMPLEX_DEFINED
  40 #define _COMPLEX_DEFINED
  41 struct _complex
  42 {
  43   double x;      /* Real part */
  44   double y;      /* Imaginary part */
  45 };
  46 #endif /* _COMPLEX_DEFINED */
  47
  48 _ACRTIMP double __cdecl sin(double);
  49 _ACRTIMP double __cdecl cos(double);
  50 _ACRTIMP double __cdecl tan(double);
  51 _ACRTIMP double __cdecl sinh(double);
  52 _ACRTIMP double __cdecl cosh(double);
  53 _ACRTIMP double __cdecl tanh(double);
  54 _ACRTIMP double __cdecl asin(double);
  55 _ACRTIMP double __cdecl acos(double);
  56 _ACRTIMP double __cdecl atan(double);
  57 _ACRTIMP double __cdecl atan2(double, double);
  58 _ACRTIMP double __cdecl asinh(double);
  59 _ACRTIMP double __cdecl acosh(double);
  60 _ACRTIMP double __cdecl atanh(double);
  61 _ACRTIMP double __cdecl exp(double);
  62 _ACRTIMP double __cdecl log(double);
  63 _ACRTIMP double __cdecl log10(double);
  64 _ACRTIMP double __cdecl pow(double, double);
  65 _ACRTIMP double __cdecl sqrt(double);
  66 _ACRTIMP double __cdecl ceil(double);
  67 _ACRTIMP double __cdecl floor(double);
  68 _ACRTIMP double __cdecl fabs(double);
  69 _ACRTIMP double __cdecl ldexp(double, int);
  70 _ACRTIMP double __cdecl frexp(double, int*);
  71 _ACRTIMP double __cdecl modf(double, double*);
  72 _ACRTIMP double __cdecl fmod(double, double);
  73 _ACRTIMP double __cdecl fmin(double, double);
  74 _ACRTIMP double __cdecl fmax(double, double);
  75 _ACRTIMP double __cdecl erf(double);
  76
  77 _ACRTIMP double __cdecl _hypot(double, double);
  78 _ACRTIMP double __cdecl _j0(double);
  79 _ACRTIMP double __cdecl _j1(double);
  80 _ACRTIMP double __cdecl _jn(int, double);
  81 _ACRTIMP double __cdecl _y0(double);
  82 _ACRTIMP double __cdecl _y1(double);
  83 _ACRTIMP double __cdecl _yn(int, double);
  84
  85 _ACRTIMP double __cdecl cbrt(double);
  86 _ACRTIMP double __cdecl exp2(double);
  87 _ACRTIMP double __cdecl log2(double);
  88 _ACRTIMP double __cdecl rint(double);
  89 _ACRTIMP double __cdecl round(double);
  90 _ACRTIMP double __cdecl trunc(double);
  91
  92 _ACRTIMP float __cdecl cbrtf(float);
  93 _ACRTIMP float __cdecl exp2f(float);
  94 _ACRTIMP float __cdecl log2f(float);
  95 _ACRTIMP float __cdecl rintf(float);
  96 _ACRTIMP float __cdecl roundf(float);
  97 _ACRTIMP float __cdecl truncf(float);
  98
  99 _ACRTIMP __msvcrt_long __cdecl lrint(double);
 100 _ACRTIMP __msvcrt_long __cdecl lrintf(float);
 101 _ACRTIMP __msvcrt_long __cdecl lround(double);
 102 _ACRTIMP __msvcrt_long __cdecl lroundf(float);
 103
 104 _ACRTIMP double __cdecl scalbn(double,int);
 105 _ACRTIMP float  __cdecl scalbnf(float,int);
 106
 107 _ACRTIMP double __cdecl _copysign (double, double);
 108 _ACRTIMP double __cdecl _chgsign (double);
 109 _ACRTIMP double __cdecl _scalb(double, __msvcrt_long);
 110 _ACRTIMP double __cdecl _logb(double);
 111 _ACRTIMP double __cdecl _nextafter(double, double);
 112 _ACRTIMP int    __cdecl _finite(double);
 113 _ACRTIMP int    __cdecl _isnan(double);
 114 _ACRTIMP int    __cdecl _fpclass(double);
 115
 116 #ifndef __i386__
 117
 118 _ACRTIMP float __cdecl sinf(float);
 119 _ACRTIMP float __cdecl cosf(float);
 120 _ACRTIMP float __cdecl tanf(float);
 121 _ACRTIMP float __cdecl sinhf(float);
 122 _ACRTIMP float __cdecl coshf(float);
 123 _ACRTIMP float __cdecl tanhf(float);
 124 _ACRTIMP float __cdecl asinf(float);
 125 _ACRTIMP float __cdecl acosf(float);
 126 _ACRTIMP float __cdecl atanf(float);
 127 _ACRTIMP float __cdecl atan2f(float, float);
 128 _ACRTIMP float __cdecl asinhf(float);
 129 _ACRTIMP float __cdecl acoshf(float);
 130 _ACRTIMP float __cdecl atanhf(float);
 131 _ACRTIMP float __cdecl expf(float);
 132 _ACRTIMP float __cdecl logf(float);
 133 _ACRTIMP float __cdecl log10f(float);
 134 _ACRTIMP float __cdecl powf(float, float);
 135 _ACRTIMP float __cdecl sqrtf(float);
 136 _ACRTIMP float __cdecl ceilf(float);
 137 _ACRTIMP float __cdecl floorf(float);
 138 _ACRTIMP float __cdecl fabsf(float);
 139 _ACRTIMP float __cdecl frexpf(float, int*);
 140 _ACRTIMP float __cdecl modff(float, float*);
 141 _ACRTIMP float __cdecl fmodf(float, float);
 142
 143 _ACRTIMP float __cdecl _copysignf(float, float);
 144 _ACRTIMP float __cdecl _chgsignf(float);
 145 _ACRTIMP float __cdecl _logbf(float);
 146 _ACRTIMP int   __cdecl _finitef(float);
 147 _ACRTIMP int   __cdecl _isnanf(float);
 148 _ACRTIMP int   __cdecl _fpclassf(float);
 149
 150 #else
 151
 152 static inline float sinf(float x) { return sin(x); }
 153 static inline float cosf(float x) { return cos(x); }
 154 static inline float tanf(float x) { return tan(x); }
 155 static inline float sinhf(float x) { return sinh(x); }
 156 static inline float coshf(float x) { return cosh(x); }
 157 static inline float tanhf(float x) { return tanh(x); }
 158 static inline float asinf(float x) { return asin(x); }
 159 static inline float acosf(float x) { return acos(x); }
 160 static inline float atanf(float x) { return atan(x); }
 161 static inline float atan2f(float x, float y) { return atan2(x, y); }
 162 static inline float asinhf(float x) { return asinh(x); }
 163 static inline float acoshf(float x) { return acosh(x); }
 164 static inline float atanhf(float x) { return atanh(x); }
 165 static inline float expf(float x) { return exp(x); }
 166 static inline float logf(float x) { return log(x); }
 167 static inline float log10f(float x) { return log10(x); }
 168 static inline float powf(float x, float y) { return pow(x, y); }
 169 static inline float sqrtf(float x) { return sqrt(x); }
 170 static inline float ceilf(float x) { return ceil(x); }
 171 static inline float floorf(float x) { return floor(x); }
 172 static inline float fabsf(float x) { return fabs(x); }
 173 static inline float frexpf(float x, int *y) { return frexp(x, y); }
 174 static inline float modff(float x, float *y) { double yd, ret = modf(x, &yd); *y = yd; return ret; }
 175 static inline float fmodf(float x, float y) { return fmod(x, y); }
 176
 177 static inline float _copysignf(float x, float y) { return _copysign(x, y); }
 178 static inline float _chgsignf(float x) { return _chgsign(x); }
 179 static inline float _logbf(float x) { return _logb(x); }
 180 static inline int   _finitef(float x) { return _finite(x); }
 181 static inline int   _isnanf(float x) { return _isnan(x); }
 182 static inline int   _fpclassf(float x) { return _fpclass(x); }
 183
 184 #endif
 185
 186 static inline float ldexpf(float x, int y) { return ldexp(x, y); }
 187
 188 #ifdef _UCRT
 189 _ACRTIMP double __cdecl copysign(double, double);
 190 _ACRTIMP float  __cdecl copysignf(float, float);
 191 #else
 192 #define copysign(x,y)  _copysign(x,y)
 193 #define copysignf(x,y) _copysignf(x,y)
 194 #endif
 195
 196 _ACRTIMP double __cdecl nearbyint(double);
 197 _ACRTIMP float __cdecl nearbyintf(float);
 198 _ACRTIMP float __cdecl _hypotf(float, float);
 199 _ACRTIMP int __cdecl _matherr(struct _exception*);
 200 _ACRTIMP double __cdecl _cabs(struct _complex);
 201
 202 #if (defined(__GNUC__) && ((__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)))) || defined(__clang__)
 203 # define INFINITY __builtin_inff()
 204 # define NAN      __builtin_nanf("")
 205 # define HUGE_VAL __builtin_huge_val()
 206 #else
 207 static const union {
 208     unsigned int __i;
 209     float __f;
 210 } __inff = { 0x7f800000 }, __nanf = { 0x7fc00000 };
 211 # define INFINITY (__inff.__f)
 212 # define NAN      (__nanf.__f)
 213 # define HUGE_VAL ((double)INFINITY)
 214 #endif
 215
 216 #define FP_INFINITE   1
 217 #define FP_NAN        2
 218 #define FP_NORMAL    -1
 219 #define FP_SUBNORMAL -2
 220 #define FP_ZERO       0
 221
 222 #define _C2 1
 223 #define FP_ILOGB0 (-0x7fffffff - _C2)
 224 #define FP_ILOGBNAN 0x7fffffff
 225
 226 _ACRTIMP short __cdecl _dclass(double);
 227 _ACRTIMP short __cdecl _fdclass(float);
 228 _ACRTIMP int   __cdecl _dsign(double);
 229 _ACRTIMP int   __cdecl _fdsign(float);
 230
 231 static inline int __isnanf(float x)
 232 {
 233     union { float x; unsigned int i; } u = { x };
 234     return (u.i & 0x7fffffff) > 0x7f800000;
 235 }
 236 static inline int __isnan(double x)
 237 {
 238     union { double x; unsigned __int64 i; } u = { x };
 239     return (u.i & ~0ull >> 1) > 0x7ffull << 52;
 240 }
 241 static inline int __isinff(float x)
 242 {
 243     union { float x; unsigned int i; } u = { x };
 244     return (u.i & 0x7fffffff) == 0x7f800000;
 245 }
 246 static inline int __isinf(double x)
 247 {
 248     union { double x; unsigned __int64 i; } u = { x };
 249     return (u.i & ~0ull >> 1) == 0x7ffull << 52;
 250 }
 251 static inline int __isnormalf(float x)
 252 {
 253     union { float x; unsigned int i; } u = { x };
 254     return ((u.i + 0x00800000) & 0x7fffffff) >= 0x01000000;
 255 }
 256 static inline int __isnormal(double x)
 257 {
 258     union { double x; unsigned __int64 i; } u = { x };
 259     return ((u.i + (1ull << 52)) & ~0ull >> 1) >= 1ull << 53;
 260 }
 261 static inline int __signbitf(float x)
 262 {
 263     union { float x; unsigned int i; } u = { x };
 264     return (int)(u.i >> 31);
 265 }
 266 static inline int __signbit(double x)
 267 {
 268     union { double x; unsigned __int64 i; } u = { x };
 269     return (int)(u.i >> 63);
 270 }
 271
 272 #define isinf(x)    (sizeof(x) == sizeof(float) ? __isinff(x) : __isinf(x))
 273 #define isnan(x)    (sizeof(x) == sizeof(float) ? __isnanf(x) : __isnan(x))
 274 #define isnormal(x) (sizeof(x) == sizeof(float) ? __isnormalf(x) : __isnormal(x))
 275 #define signbit(x)  (sizeof(x) == sizeof(float) ? __signbitf(x) : __signbit(x))
 276 #define isfinite(x) (!isinf(x) && !isnan(x))
 277
 278 #ifdef __cplusplus
 279 }
 280 #endif
 281
 282 #include <poppack.h>
 283
 284 #if !defined(__STRICT_ANSI__) || defined(_POSIX_C_SOURCE) || defined(_POSIX_SOURCE) || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_USE_MATH_DEFINES)
 285 #ifndef _MATH_DEFINES_DEFINED
 286 #define _MATH_DEFINES_DEFINED
 287 #define M_E         2.71828182845904523536
 288 #define M_LOG2E     1.44269504088896340736
 289 #define M_LOG10E    0.434294481903251827651
 290 #define M_LN2       0.693147180559945309417
 291 #define M_LN10      2.30258509299404568402
 292 #define M_PI        3.14159265358979323846
 293 #define M_PI_2      1.57079632679489661923
 294 #define M_PI_4      0.785398163397448309616
 295 #define M_1_PI      0.318309886183790671538
 296 #define M_2_PI      0.636619772367581343076
 297 #define M_2_SQRTPI  1.12837916709551257390
 298 #define M_SQRT2     1.41421356237309504880
 299 #define M_SQRT1_2   0.707106781186547524401
 300 #endif /* !_MATH_DEFINES_DEFINED */
 301 #endif /* _USE_MATH_DEFINES */
 302
 303 static inline double hypot( double x, double y ) { return _hypot( x, y ); }
 304 static inline double j0( double x ) { return _j0( x ); }
 305 static inline double j1( double x ) { return _j1( x ); }
 306 static inline double jn( int n, double x ) { return _jn( n, x ); }
 307 static inline double y0( double x ) { return _y0( x ); }
 308 static inline double y1( double x ) { return _y1( x ); }
 309 static inline double yn( int n, double x ) { return _yn( n, x ); }
 310
 311 static inline float hypotf( float x, float y ) { return _hypotf( x, y ); }
 312
 313 #endif /* __WINE_MATH_H */