Rev 1693 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1693 | serge | 1 | #ifndef _MATH_H_ |
| 2 | |||
| 3 | #define _MATH_H_ |
||
| 4 | |||
| 5 | #include |
||
| 6 | #include |
||
| 7 | #include "_ansi.h" |
||
| 8 | |||
| 9 | _BEGIN_STD_C |
||
| 10 | |||
| 11 | /* __dmath, __fmath, and __ldmath are only here for backwards compatibility |
||
| 12 | * in case any code used them. They are no longer used by Newlib, itself, |
||
| 13 | * other than legacy. */ |
||
| 14 | union __dmath |
||
| 15 | { |
||
| 16 | double d; |
||
| 17 | __ULong i[2]; |
||
| 18 | }; |
||
| 19 | |||
| 20 | union __fmath |
||
| 21 | { |
||
| 22 | float f; |
||
| 23 | __ULong i[1]; |
||
| 24 | }; |
||
| 25 | |||
| 26 | #if defined(_HAVE_LONG_DOUBLE) |
||
| 27 | union __ldmath |
||
| 28 | { |
||
| 29 | long double ld; |
||
| 30 | __ULong i[4]; |
||
| 31 | }; |
||
| 32 | #endif |
||
| 33 | |||
| 34 | /* Natural log of 2 */ |
||
| 2168 | serge | 35 | #define _M_LN2 0.693147180559945309417 |
| 1693 | serge | 36 | |
| 37 | #if defined(__GNUC__) && \ |
||
| 38 | ( (__GNUC__ >= 4) || \ |
||
| 39 | ( (__GNUC__ >= 3) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ >= 3) ) ) |
||
| 40 | |||
| 41 | /* gcc >= 3.3 implicitly defines builtins for HUGE_VALx values. */ |
||
| 42 | |||
| 43 | # ifndef HUGE_VAL |
||
| 44 | # define HUGE_VAL (__builtin_huge_val()) |
||
| 45 | # endif |
||
| 46 | |||
| 47 | # ifndef HUGE_VALF |
||
| 48 | # define HUGE_VALF (__builtin_huge_valf()) |
||
| 49 | # endif |
||
| 50 | |||
| 51 | # ifndef HUGE_VALL |
||
| 52 | # define HUGE_VALL (__builtin_huge_vall()) |
||
| 53 | # endif |
||
| 54 | |||
| 55 | # ifndef INFINITY |
||
| 56 | # define INFINITY (__builtin_inff()) |
||
| 57 | # endif |
||
| 58 | |||
| 59 | # ifndef NAN |
||
| 60 | # define NAN (__builtin_nanf("")) |
||
| 61 | # endif |
||
| 62 | |||
| 63 | #else /* !gcc >= 3.3 */ |
||
| 64 | |||
| 65 | /* No builtins. Use fixed defines instead. (All 3 HUGE plus the INFINITY |
||
| 66 | * and NAN macros are required to be constant expressions. Using a variable-- |
||
| 67 | * even a static const--does not meet this requirement, as it cannot be |
||
| 68 | * evaluated at translation time.) |
||
| 69 | * The infinities are done using numbers that are far in excess of |
||
| 70 | * something that would be expected to be encountered in a floating-point |
||
| 71 | * implementation. (A more certain way uses values from float.h, but that is |
||
| 72 | * avoided because system includes are not supposed to include each other.) |
||
| 73 | * This method might produce warnings from some compilers. (It does in |
||
| 74 | * newer GCCs, but not for ones that would hit this #else.) If this happens, |
||
| 75 | * please report details to the Newlib mailing list. */ |
||
| 76 | |||
| 77 | #ifndef HUGE_VAL |
||
| 78 | #define HUGE_VAL (1.0e999999999) |
||
| 79 | #endif |
||
| 80 | |||
| 81 | #ifndef HUGE_VALF |
||
| 82 | #define HUGE_VALF (1.0e999999999F) |
||
| 83 | #endif |
||
| 84 | |||
| 85 | #if !defined(HUGE_VALL) && defined(_HAVE_LONG_DOUBLE) |
||
| 86 | #define HUGE_VALL (1.0e999999999L) |
||
| 87 | #endif |
||
| 88 | |||
| 89 | #if !defined(INFINITY) |
||
| 90 | #define INFINITY (HUGE_VALF) |
||
| 91 | #endif |
||
| 92 | |||
| 93 | #if !defined(NAN) |
||
| 94 | #if defined(__GNUC__) && defined(__cplusplus) |
||
| 95 | /* Exception: older g++ versions warn about the divide by 0 used in the |
||
| 96 | * normal case (even though older gccs do not). This trick suppresses the |
||
| 97 | * warning, but causes errors for plain gcc, so is only used in the one |
||
| 98 | * special case. */ |
||
| 99 | static const union { __ULong __i[1]; float __d; } __Nanf = {0x7FC00000}; |
||
| 100 | #define NAN (__Nanf.__d) |
||
| 101 | #else |
||
| 102 | #define NAN (0.0F/0.0F) |
||
| 103 | #endif |
||
| 104 | #endif |
||
| 105 | |||
| 106 | #endif /* !gcc >= 3.3 */ |
||
| 107 | |||
| 108 | /* Reentrant ANSI C functions. */ |
||
| 109 | |||
| 110 | #ifndef __math_68881 |
||
| 111 | extern double atan _PARAMS((double)); |
||
| 112 | extern double cos _PARAMS((double)); |
||
| 113 | extern double sin _PARAMS((double)); |
||
| 114 | extern double tan _PARAMS((double)); |
||
| 115 | extern double tanh _PARAMS((double)); |
||
| 116 | extern double frexp _PARAMS((double, int *)); |
||
| 117 | extern double modf _PARAMS((double, double *)); |
||
| 118 | extern double ceil _PARAMS((double)); |
||
| 119 | extern double fabs _PARAMS((double)); |
||
| 120 | extern double floor _PARAMS((double)); |
||
| 121 | #endif /* ! defined (__math_68881) */ |
||
| 122 | |||
| 123 | /* Non reentrant ANSI C functions. */ |
||
| 124 | |||
| 125 | #ifndef _REENT_ONLY |
||
| 126 | #ifndef __math_68881 |
||
| 127 | extern double acos _PARAMS((double)); |
||
| 128 | extern double asin _PARAMS((double)); |
||
| 129 | extern double atan2 _PARAMS((double, double)); |
||
| 130 | extern double cosh _PARAMS((double)); |
||
| 131 | extern double sinh _PARAMS((double)); |
||
| 132 | extern double exp _PARAMS((double)); |
||
| 133 | extern double ldexp _PARAMS((double, int)); |
||
| 134 | extern double log _PARAMS((double)); |
||
| 135 | extern double log10 _PARAMS((double)); |
||
| 136 | extern double pow _PARAMS((double, double)); |
||
| 137 | extern double sqrt _PARAMS((double)); |
||
| 138 | extern double fmod _PARAMS((double, double)); |
||
| 139 | #endif /* ! defined (__math_68881) */ |
||
| 140 | #endif /* ! defined (_REENT_ONLY) */ |
||
| 141 | |||
| 142 | #if !defined(__STRICT_ANSI__) || defined(__cplusplus) || __STDC_VERSION__ >= 199901L |
||
| 143 | |||
| 144 | /* ISO C99 types and macros. */ |
||
| 145 | |||
| 146 | #ifndef FLT_EVAL_METHOD |
||
| 147 | #define FLT_EVAL_METHOD 0 |
||
| 148 | typedef float float_t; |
||
| 149 | typedef double double_t; |
||
| 150 | #endif /* FLT_EVAL_METHOD */ |
||
| 151 | |||
| 152 | #define FP_NAN 0 |
||
| 153 | #define FP_INFINITE 1 |
||
| 154 | #define FP_ZERO 2 |
||
| 155 | #define FP_SUBNORMAL 3 |
||
| 156 | #define FP_NORMAL 4 |
||
| 157 | |||
| 158 | #ifndef FP_ILOGB0 |
||
| 159 | # define FP_ILOGB0 (-INT_MAX) |
||
| 160 | #endif |
||
| 161 | #ifndef FP_ILOGBNAN |
||
| 162 | # define FP_ILOGBNAN INT_MAX |
||
| 163 | #endif |
||
| 164 | |||
| 165 | #ifndef MATH_ERRNO |
||
| 166 | # define MATH_ERRNO 1 |
||
| 167 | #endif |
||
| 168 | #ifndef MATH_ERREXCEPT |
||
| 169 | # define MATH_ERREXCEPT 2 |
||
| 170 | #endif |
||
| 171 | #ifndef math_errhandling |
||
| 172 | # define math_errhandling MATH_ERRNO |
||
| 173 | #endif |
||
| 174 | |||
| 175 | extern int __isinff (float x); |
||
| 176 | extern int __isinfd (double x); |
||
| 177 | extern int __isnanf (float x); |
||
| 178 | extern int __isnand (double x); |
||
| 179 | extern int __fpclassifyf (float x); |
||
| 180 | extern int __fpclassifyd (double x); |
||
| 181 | extern int __signbitf (float x); |
||
| 182 | extern int __signbitd (double x); |
||
| 183 | |||
| 184 | #define fpclassify(__x) \ |
||
| 185 | ((sizeof(__x) == sizeof(float)) ? __fpclassifyf(__x) : \ |
||
| 186 | __fpclassifyd(__x)) |
||
| 187 | |||
| 188 | #ifndef isfinite |
||
| 189 | #define isfinite(__y) \ |
||
| 190 | (__extension__ ({int __cy = fpclassify(__y); \ |
||
| 191 | __cy != FP_INFINITE && __cy != FP_NAN;})) |
||
| 192 | #endif |
||
| 193 | |||
| 194 | /* Note: isinf and isnan were once functions in newlib that took double |
||
| 195 | * arguments. C99 specifies that these names are reserved for macros |
||
| 196 | * supporting multiple floating point types. Thus, they are |
||
| 197 | * now defined as macros. Implementations of the old functions |
||
| 198 | * taking double arguments still exist for compatibility purposes |
||
| 199 | * (prototypes for them are in |
||
| 200 | #ifndef isinf |
||
| 201 | #define isinf(y) (fpclassify(y) == FP_INFINITE) |
||
| 202 | #endif |
||
| 203 | |||
| 204 | #ifndef isnan |
||
| 205 | #define isnan(y) (fpclassify(y) == FP_NAN) |
||
| 206 | #endif |
||
| 207 | |||
| 208 | #define isnormal(y) (fpclassify(y) == FP_NORMAL) |
||
| 209 | #define signbit(__x) \ |
||
| 210 | ((sizeof(__x) == sizeof(float)) ? __signbitf(__x) : \ |
||
| 211 | __signbitd(__x)) |
||
| 212 | |||
| 213 | #define isgreater(x,y) \ |
||
| 214 | (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \ |
||
| 215 | !isunordered(__x,__y) && (__x > __y);})) |
||
| 216 | #define isgreaterequal(x,y) \ |
||
| 217 | (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \ |
||
| 218 | !isunordered(__x,__y) && (__x >= __y);})) |
||
| 219 | #define isless(x,y) \ |
||
| 220 | (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \ |
||
| 221 | !isunordered(__x,__y) && (__x < __y);})) |
||
| 222 | #define islessequal(x,y) \ |
||
| 223 | (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \ |
||
| 224 | !isunordered(__x,__y) && (__x <= __y);})) |
||
| 225 | #define islessgreater(x,y) \ |
||
| 226 | (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \ |
||
| 227 | !isunordered(__x,__y) && (__x < __y || __x > __y);})) |
||
| 228 | |||
| 229 | #define isunordered(a,b) \ |
||
| 230 | (__extension__ ({__typeof__(a) __a = (a); __typeof__(b) __b = (b); \ |
||
| 231 | fpclassify(__a) == FP_NAN || fpclassify(__b) == FP_NAN;})) |
||
| 232 | |||
| 233 | /* Non ANSI double precision functions. */ |
||
| 234 | |||
| 235 | extern double infinity _PARAMS((void)); |
||
| 236 | extern double nan _PARAMS((const char *)); |
||
| 237 | extern int finite _PARAMS((double)); |
||
| 238 | extern double copysign _PARAMS((double, double)); |
||
| 239 | extern double logb _PARAMS((double)); |
||
| 240 | extern int ilogb _PARAMS((double)); |
||
| 241 | |||
| 242 | extern double asinh _PARAMS((double)); |
||
| 243 | extern double cbrt _PARAMS((double)); |
||
| 244 | extern double nextafter _PARAMS((double, double)); |
||
| 245 | extern double rint _PARAMS((double)); |
||
| 246 | extern double scalbn _PARAMS((double, int)); |
||
| 247 | |||
| 248 | extern double exp2 _PARAMS((double)); |
||
| 249 | extern double scalbln _PARAMS((double, long int)); |
||
| 250 | extern double tgamma _PARAMS((double)); |
||
| 251 | extern double nearbyint _PARAMS((double)); |
||
| 252 | extern long int lrint _PARAMS((double)); |
||
| 253 | extern _LONG_LONG_TYPE int llrint _PARAMS((double)); |
||
| 254 | extern double round _PARAMS((double)); |
||
| 255 | extern long int lround _PARAMS((double)); |
||
| 256 | extern long long int llround _PARAMS((double)); |
||
| 257 | extern double trunc _PARAMS((double)); |
||
| 258 | extern double remquo _PARAMS((double, double, int *)); |
||
| 259 | extern double fdim _PARAMS((double, double)); |
||
| 260 | extern double fmax _PARAMS((double, double)); |
||
| 261 | extern double fmin _PARAMS((double, double)); |
||
| 262 | extern double fma _PARAMS((double, double, double)); |
||
| 263 | |||
| 264 | #ifndef __math_68881 |
||
| 265 | extern double log1p _PARAMS((double)); |
||
| 266 | extern double expm1 _PARAMS((double)); |
||
| 267 | #endif /* ! defined (__math_68881) */ |
||
| 268 | |||
| 269 | #ifndef _REENT_ONLY |
||
| 270 | extern double acosh _PARAMS((double)); |
||
| 271 | extern double atanh _PARAMS((double)); |
||
| 272 | extern double remainder _PARAMS((double, double)); |
||
| 273 | extern double gamma _PARAMS((double)); |
||
| 274 | extern double lgamma _PARAMS((double)); |
||
| 275 | extern double erf _PARAMS((double)); |
||
| 276 | extern double erfc _PARAMS((double)); |
||
| 277 | extern double log2 _PARAMS((double)); |
||
| 278 | #if !defined(__cplusplus) |
||
| 2168 | serge | 279 | #define log2(x) (log (x) / _M_LN2) |
| 1693 | serge | 280 | #endif |
| 281 | |||
| 282 | #ifndef __math_68881 |
||
| 283 | extern double hypot _PARAMS((double, double)); |
||
| 284 | #endif |
||
| 285 | |||
| 286 | #endif /* ! defined (_REENT_ONLY) */ |
||
| 287 | |||
| 288 | /* Single precision versions of ANSI functions. */ |
||
| 289 | |||
| 290 | extern float atanf _PARAMS((float)); |
||
| 291 | extern float cosf _PARAMS((float)); |
||
| 292 | extern float sinf _PARAMS((float)); |
||
| 293 | extern float tanf _PARAMS((float)); |
||
| 294 | extern float tanhf _PARAMS((float)); |
||
| 295 | extern float frexpf _PARAMS((float, int *)); |
||
| 296 | extern float modff _PARAMS((float, float *)); |
||
| 297 | extern float ceilf _PARAMS((float)); |
||
| 298 | extern float fabsf _PARAMS((float)); |
||
| 299 | extern float floorf _PARAMS((float)); |
||
| 300 | |||
| 301 | #ifndef _REENT_ONLY |
||
| 302 | extern float acosf _PARAMS((float)); |
||
| 303 | extern float asinf _PARAMS((float)); |
||
| 304 | extern float atan2f _PARAMS((float, float)); |
||
| 305 | extern float coshf _PARAMS((float)); |
||
| 306 | extern float sinhf _PARAMS((float)); |
||
| 307 | extern float expf _PARAMS((float)); |
||
| 308 | extern float ldexpf _PARAMS((float, int)); |
||
| 309 | extern float logf _PARAMS((float)); |
||
| 310 | extern float log10f _PARAMS((float)); |
||
| 311 | extern float powf _PARAMS((float, float)); |
||
| 312 | extern float sqrtf _PARAMS((float)); |
||
| 313 | extern float fmodf _PARAMS((float, float)); |
||
| 314 | #endif /* ! defined (_REENT_ONLY) */ |
||
| 315 | |||
| 316 | /* Other single precision functions. */ |
||
| 317 | |||
| 318 | extern float exp2f _PARAMS((float)); |
||
| 319 | extern float scalblnf _PARAMS((float, long int)); |
||
| 320 | extern float tgammaf _PARAMS((float)); |
||
| 321 | extern float nearbyintf _PARAMS((float)); |
||
| 322 | extern long int lrintf _PARAMS((float)); |
||
| 323 | extern _LONG_LONG_TYPE llrintf _PARAMS((float)); |
||
| 324 | extern float roundf _PARAMS((float)); |
||
| 325 | extern long int lroundf _PARAMS((float)); |
||
| 326 | extern long long int llroundf _PARAMS((float)); |
||
| 327 | extern float truncf _PARAMS((float)); |
||
| 328 | extern float remquof _PARAMS((float, float, int *)); |
||
| 329 | extern float fdimf _PARAMS((float, float)); |
||
| 330 | extern float fmaxf _PARAMS((float, float)); |
||
| 331 | extern float fminf _PARAMS((float, float)); |
||
| 332 | extern float fmaf _PARAMS((float, float, float)); |
||
| 333 | |||
| 334 | extern float infinityf _PARAMS((void)); |
||
| 335 | extern float nanf _PARAMS((const char *)); |
||
| 336 | extern int finitef _PARAMS((float)); |
||
| 337 | extern float copysignf _PARAMS((float, float)); |
||
| 338 | extern float logbf _PARAMS((float)); |
||
| 339 | extern int ilogbf _PARAMS((float)); |
||
| 340 | |||
| 341 | extern float asinhf _PARAMS((float)); |
||
| 342 | extern float cbrtf _PARAMS((float)); |
||
| 343 | extern float nextafterf _PARAMS((float, float)); |
||
| 344 | extern float rintf _PARAMS((float)); |
||
| 345 | extern float scalbnf _PARAMS((float, int)); |
||
| 346 | extern float log1pf _PARAMS((float)); |
||
| 347 | extern float expm1f _PARAMS((float)); |
||
| 348 | |||
| 349 | #ifndef _REENT_ONLY |
||
| 350 | extern float acoshf _PARAMS((float)); |
||
| 351 | extern float atanhf _PARAMS((float)); |
||
| 352 | extern float remainderf _PARAMS((float, float)); |
||
| 353 | extern float gammaf _PARAMS((float)); |
||
| 354 | extern float lgammaf _PARAMS((float)); |
||
| 355 | extern float erff _PARAMS((float)); |
||
| 356 | extern float erfcf _PARAMS((float)); |
||
| 357 | extern float log2f _PARAMS((float)); |
||
| 358 | #if !defined(__cplusplus) |
||
| 2168 | serge | 359 | #define log2f(x) (logf (x) / (float_t) _M_LN2) |
| 1693 | serge | 360 | #endif |
| 361 | extern float hypotf _PARAMS((float, float)); |
||
| 362 | #endif /* ! defined (_REENT_ONLY) */ |
||
| 363 | |||
| 364 | /* On platforms where long double equals double. */ |
||
| 365 | #ifdef _LDBL_EQ_DBL |
||
| 366 | /* Reentrant ANSI C functions. */ |
||
| 367 | #ifndef __math_68881 |
||
| 368 | extern long double atanl _PARAMS((long double)); |
||
| 369 | extern long double cosl _PARAMS((long double)); |
||
| 370 | extern long double sinl _PARAMS((long double)); |
||
| 371 | extern long double tanl _PARAMS((long double)); |
||
| 372 | extern long double tanhl _PARAMS((long double)); |
||
| 373 | extern long double frexpl _PARAMS((long double value, int *)); |
||
| 374 | extern long double modfl _PARAMS((long double, long double *)); |
||
| 375 | extern long double ceill _PARAMS((long double)); |
||
| 376 | extern long double fabsl _PARAMS((long double)); |
||
| 377 | extern long double floorl _PARAMS((long double)); |
||
| 378 | extern long double log1pl _PARAMS((long double)); |
||
| 379 | extern long double expm1l _PARAMS((long double)); |
||
| 380 | #endif /* ! defined (__math_68881) */ |
||
| 381 | /* Non reentrant ANSI C functions. */ |
||
| 382 | #ifndef _REENT_ONLY |
||
| 383 | #ifndef __math_68881 |
||
| 384 | extern long double acosl _PARAMS((long double)); |
||
| 385 | extern long double asinl _PARAMS((long double)); |
||
| 386 | extern long double atan2l _PARAMS((long double, long double)); |
||
| 387 | extern long double coshl _PARAMS((long double)); |
||
| 388 | extern long double sinhl _PARAMS((long double)); |
||
| 389 | extern long double expl _PARAMS((long double)); |
||
| 390 | extern long double ldexpl _PARAMS((long double, int)); |
||
| 391 | extern long double logl _PARAMS((long double)); |
||
| 392 | extern long double log10l _PARAMS((long double)); |
||
| 393 | extern long double powl _PARAMS((long double, long double)); |
||
| 394 | extern long double sqrtl _PARAMS((long double)); |
||
| 395 | extern long double fmodl _PARAMS((long double, long double)); |
||
| 396 | extern long double hypotl _PARAMS((long double, long double)); |
||
| 397 | #endif /* ! defined (__math_68881) */ |
||
| 398 | #endif /* ! defined (_REENT_ONLY) */ |
||
| 399 | extern long double copysignl _PARAMS((long double, long double)); |
||
| 400 | extern long double nanl _PARAMS((const char *)); |
||
| 401 | extern int ilogbl _PARAMS((long double)); |
||
| 402 | extern long double asinhl _PARAMS((long double)); |
||
| 403 | extern long double cbrtl _PARAMS((long double)); |
||
| 404 | extern long double nextafterl _PARAMS((long double, long double)); |
||
| 405 | extern long double rintl _PARAMS((long double)); |
||
| 406 | extern long double scalbnl _PARAMS((long double, int)); |
||
| 407 | extern long double exp2l _PARAMS((long double)); |
||
| 408 | extern long double scalblnl _PARAMS((long double, long)); |
||
| 409 | extern long double tgammal _PARAMS((long double)); |
||
| 410 | extern long double nearbyintl _PARAMS((long double)); |
||
| 411 | extern long int lrintl _PARAMS((long double)); |
||
| 412 | extern long long int llrintl _PARAMS((long double)); |
||
| 413 | extern long double roundl _PARAMS((long double)); |
||
| 414 | extern long lroundl _PARAMS((long double)); |
||
| 415 | extern _LONG_LONG_TYPE int llroundl _PARAMS((long double)); |
||
| 416 | extern long double truncl _PARAMS((long double)); |
||
| 417 | extern long double remquol _PARAMS((long double, long double, int *)); |
||
| 418 | extern long double fdiml _PARAMS((long double, long double)); |
||
| 419 | extern long double fmaxl _PARAMS((long double, long double)); |
||
| 420 | extern long double fminl _PARAMS((long double, long double)); |
||
| 421 | extern long double fmal _PARAMS((long double, long double, long double)); |
||
| 422 | #ifndef _REENT_ONLY |
||
| 423 | extern long double acoshl _PARAMS((long double)); |
||
| 424 | extern long double atanhl _PARAMS((long double)); |
||
| 425 | extern long double remainderl _PARAMS((long double, long double)); |
||
| 426 | extern long double lgammal _PARAMS((long double)); |
||
| 427 | extern long double erfl _PARAMS((long double)); |
||
| 428 | extern long double erfcl _PARAMS((long double)); |
||
| 429 | #endif /* ! defined (_REENT_ONLY) */ |
||
| 430 | #else /* !_LDBL_EQ_DBL */ |
||
| 431 | #ifdef __i386__ |
||
| 432 | /* Other long double precision functions. */ |
||
| 433 | extern _LONG_DOUBLE rintl _PARAMS((_LONG_DOUBLE)); |
||
| 434 | extern long int lrintl _PARAMS((_LONG_DOUBLE)); |
||
| 435 | extern _LONG_LONG_TYPE llrintl _PARAMS((_LONG_DOUBLE)); |
||
| 436 | #endif /* __i386__ */ |
||
| 437 | #endif /* !_LDBL_EQ_DBL */ |
||
| 438 | |||
| 439 | #endif /* !defined (__STRICT_ANSI__) || defined(__cplusplus) || __STDC_VERSION__ >= 199901L */ |
||
| 440 | |||
| 441 | #if !defined (__STRICT_ANSI__) || defined(__cplusplus) |
||
| 442 | |||
| 443 | extern double drem _PARAMS((double, double)); |
||
| 444 | extern void sincos _PARAMS((double, double *, double *)); |
||
| 445 | extern double gamma_r _PARAMS((double, int *)); |
||
| 446 | extern double lgamma_r _PARAMS((double, int *)); |
||
| 447 | |||
| 448 | extern double y0 _PARAMS((double)); |
||
| 449 | extern double y1 _PARAMS((double)); |
||
| 450 | extern double yn _PARAMS((int, double)); |
||
| 451 | extern double j0 _PARAMS((double)); |
||
| 452 | extern double j1 _PARAMS((double)); |
||
| 453 | extern double jn _PARAMS((int, double)); |
||
| 454 | |||
| 455 | extern float dremf _PARAMS((float, float)); |
||
| 456 | extern void sincosf _PARAMS((float, float *, float *)); |
||
| 457 | extern float gammaf_r _PARAMS((float, int *)); |
||
| 458 | extern float lgammaf_r _PARAMS((float, int *)); |
||
| 459 | |||
| 460 | extern float y0f _PARAMS((float)); |
||
| 461 | extern float y1f _PARAMS((float)); |
||
| 462 | extern float ynf _PARAMS((int, float)); |
||
| 463 | extern float j0f _PARAMS((float)); |
||
| 464 | extern float j1f _PARAMS((float)); |
||
| 465 | extern float jnf _PARAMS((int, float)); |
||
| 466 | |||
| 467 | /* GNU extensions */ |
||
| 468 | # ifndef exp10 |
||
| 469 | extern double exp10 _PARAMS((double)); |
||
| 470 | # endif |
||
| 471 | # ifndef pow10 |
||
| 472 | extern double pow10 _PARAMS((double)); |
||
| 473 | # endif |
||
| 474 | # ifndef exp10f |
||
| 475 | extern float exp10f _PARAMS((float)); |
||
| 476 | # endif |
||
| 477 | # ifndef pow10f |
||
| 478 | extern float pow10f _PARAMS((float)); |
||
| 479 | # endif |
||
| 480 | |||
| 481 | #endif /* !defined (__STRICT_ANSI__) || defined(__cplusplus) */ |
||
| 482 | |||
| 483 | #ifndef __STRICT_ANSI__ |
||
| 484 | |||
| 485 | /* The gamma functions use a global variable, signgam. */ |
||
| 486 | #ifndef _REENT_ONLY |
||
| 487 | #define signgam (*__signgam()) |
||
| 488 | extern int *__signgam _PARAMS((void)); |
||
| 489 | #endif /* ! defined (_REENT_ONLY) */ |
||
| 490 | |||
| 491 | #define __signgam_r(ptr) _REENT_SIGNGAM(ptr) |
||
| 492 | |||
| 493 | /* The exception structure passed to the matherr routine. */ |
||
| 494 | /* We have a problem when using C++ since `exception' is a reserved |
||
| 495 | name in C++. */ |
||
| 496 | #ifdef __cplusplus |
||
| 497 | struct __exception |
||
| 498 | #else |
||
| 499 | struct exception |
||
| 500 | #endif |
||
| 501 | { |
||
| 502 | int type; |
||
| 503 | char *name; |
||
| 504 | double arg1; |
||
| 505 | double arg2; |
||
| 506 | double retval; |
||
| 507 | int err; |
||
| 508 | }; |
||
| 509 | |||
| 510 | #ifdef __cplusplus |
||
| 511 | extern int matherr _PARAMS((struct __exception *e)); |
||
| 512 | #else |
||
| 513 | extern int matherr _PARAMS((struct exception *e)); |
||
| 514 | #endif |
||
| 515 | |||
| 516 | /* Values for the type field of struct exception. */ |
||
| 517 | |||
| 518 | #define DOMAIN 1 |
||
| 519 | #define SING 2 |
||
| 520 | #define OVERFLOW 3 |
||
| 521 | #define UNDERFLOW 4 |
||
| 522 | #define TLOSS 5 |
||
| 523 | #define PLOSS 6 |
||
| 524 | |||
| 525 | /* Useful constants. */ |
||
| 526 | |||
| 527 | #define MAXFLOAT 3.40282347e+38F |
||
| 528 | |||
| 529 | #define M_E 2.7182818284590452354 |
||
| 530 | #define M_LOG2E 1.4426950408889634074 |
||
| 531 | #define M_LOG10E 0.43429448190325182765 |
||
| 2168 | serge | 532 | #define M_LN2 _M_LN2 |
| 1693 | serge | 533 | #define M_LN10 2.30258509299404568402 |
| 534 | #define M_PI 3.14159265358979323846 |
||
| 535 | #define M_TWOPI (M_PI * 2.0) |
||
| 536 | #define M_PI_2 1.57079632679489661923 |
||
| 537 | #define M_PI_4 0.78539816339744830962 |
||
| 538 | #define M_3PI_4 2.3561944901923448370E0 |
||
| 539 | #define M_SQRTPI 1.77245385090551602792981 |
||
| 540 | #define M_1_PI 0.31830988618379067154 |
||
| 541 | #define M_2_PI 0.63661977236758134308 |
||
| 542 | #define M_2_SQRTPI 1.12837916709551257390 |
||
| 543 | #define M_SQRT2 1.41421356237309504880 |
||
| 544 | #define M_SQRT1_2 0.70710678118654752440 |
||
| 545 | #define M_LN2LO 1.9082149292705877000E-10 |
||
| 546 | #define M_LN2HI 6.9314718036912381649E-1 |
||
| 547 | #define M_SQRT3 1.73205080756887719000 |
||
| 548 | #define M_IVLN10 0.43429448190325182765 /* 1 / log(10) */ |
||
| 2168 | serge | 549 | #define M_LOG2_E _M_LN2 |
| 1693 | serge | 550 | #define M_INVLN2 1.4426950408889633870E0 /* 1 / log(2) */ |
| 551 | |||
| 552 | /* Global control over fdlibm error handling. */ |
||
| 553 | |||
| 554 | enum __fdlibm_version |
||
| 555 | { |
||
| 556 | __fdlibm_ieee = -1, |
||
| 557 | __fdlibm_svid, |
||
| 558 | __fdlibm_xopen, |
||
| 559 | __fdlibm_posix |
||
| 560 | }; |
||
| 561 | |||
| 562 | #define _LIB_VERSION_TYPE enum __fdlibm_version |
||
| 563 | #define _LIB_VERSION __fdlib_version |
||
| 564 | |||
| 565 | extern __IMPORT _LIB_VERSION_TYPE _LIB_VERSION; |
||
| 566 | |||
| 567 | #define _IEEE_ __fdlibm_ieee |
||
| 568 | #define _SVID_ __fdlibm_svid |
||
| 569 | #define _XOPEN_ __fdlibm_xopen |
||
| 570 | #define _POSIX_ __fdlibm_posix |
||
| 571 | |||
| 572 | #endif /* ! defined (__STRICT_ANSI__) */ |
||
| 573 | |||
| 574 | _END_STD_C |
||
| 575 | |||
| 576 | #ifdef __FAST_MATH__ |
||
| 577 | #include |
||
| 578 | #endif |
||
| 579 | |||
| 580 | #endif /* _MATH_H_ */ |