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1#ifndef _MATH_H
2#define _MATH_H
3
4#ifdef __cplusplus
5extern "C" {
6#endif
7
8#include <features.h>
9
10#define __NEED_float_t
11#define __NEED_double_t
12#include <bits/alltypes.h>
13
14#if 100*__GNUC__+__GNUC_MINOR__ >= 303
15#define NAN __builtin_nanf("")
16#define INFINITY __builtin_inff()
17#else
18#define NAN (0.0f/0.0f)
19#define INFINITY 1e5000f
20#endif
21
22#define HUGE_VALF INFINITY
23#define HUGE_VAL ((double)INFINITY)
24#define HUGE_VALL ((long double)INFINITY)
25
26#define MATH_ERRNO 1
27#define MATH_ERREXCEPT 2
28#define math_errhandling 2
29
30#define FP_ILOGBNAN (-1-0x7fffffff)
31#define FP_ILOGB0 FP_ILOGBNAN
32
33#define FP_NAN 0
34#define FP_INFINITE 1
35#define FP_ZERO 2
36#define FP_SUBNORMAL 3
37#define FP_NORMAL 4
38
39#ifdef __FP_FAST_FMA
40#define FP_FAST_FMA 1
41#endif
42
43#ifdef __FP_FAST_FMAF
44#define FP_FAST_FMAF 1
45#endif
46
47#ifdef __FP_FAST_FMAL
48#define FP_FAST_FMAL 1
49#endif
50
51#ifdef __wasilibc_unmodified_upstream /* Use the compiler's definition of the fpclassify-like operations */
52int __fpclassify(double);
53int __fpclassifyf(float);
54int __fpclassifyl(long double);
55
56static __inline unsigned __FLOAT_BITS(float __f)
57{
58 union {float __f; unsigned __i;} __u;
59 __u.__f = __f;
60 return __u.__i;
61}
62static __inline unsigned long long __DOUBLE_BITS(double __f)
63{
64 union {double __f; unsigned long long __i;} __u;
65 __u.__f = __f;
66 return __u.__i;
67}
68
69#define fpclassify(x) ( \
70 sizeof(x) == sizeof(float) ? __fpclassifyf(x) : \
71 sizeof(x) == sizeof(double) ? __fpclassify(x) : \
72 __fpclassifyl(x) )
73
74#define isinf(x) ( \
75 sizeof(x) == sizeof(float) ? (__FLOAT_BITS(x) & 0x7fffffff) == 0x7f800000 : \
76 sizeof(x) == sizeof(double) ? (__DOUBLE_BITS(x) & -1ULL>>1) == 0x7ffULL<<52 : \
77 __fpclassifyl(x) == FP_INFINITE)
78
79#define isnan(x) ( \
80 sizeof(x) == sizeof(float) ? (__FLOAT_BITS(x) & 0x7fffffff) > 0x7f800000 : \
81 sizeof(x) == sizeof(double) ? (__DOUBLE_BITS(x) & -1ULL>>1) > 0x7ffULL<<52 : \
82 __fpclassifyl(x) == FP_NAN)
83
84#define isnormal(x) ( \
85 sizeof(x) == sizeof(float) ? ((__FLOAT_BITS(x)+0x00800000) & 0x7fffffff) >= 0x01000000 : \
86 sizeof(x) == sizeof(double) ? ((__DOUBLE_BITS(x)+(1ULL<<52)) & -1ULL>>1) >= 1ULL<<53 : \
87 __fpclassifyl(x) == FP_NORMAL)
88
89#define isfinite(x) ( \
90 sizeof(x) == sizeof(float) ? (__FLOAT_BITS(x) & 0x7fffffff) < 0x7f800000 : \
91 sizeof(x) == sizeof(double) ? (__DOUBLE_BITS(x) & -1ULL>>1) < 0x7ffULL<<52 : \
92 __fpclassifyl(x) > FP_INFINITE)
93
94int __signbit(double);
95int __signbitf(float);
96int __signbitl(long double);
97
98#define signbit(x) ( \
99 sizeof(x) == sizeof(float) ? (int)(__FLOAT_BITS(x)>>31) : \
100 sizeof(x) == sizeof(double) ? (int)(__DOUBLE_BITS(x)>>63) : \
101 __signbitl(x) )
102
103#define isunordered(x,y) (isnan((x)) ? ((void)(y),1) : isnan((y)))
104
105#define __ISREL_DEF(rel, op, type) \
106static __inline int __is##rel(type __x, type __y) \
107{ return !isunordered(__x,__y) && __x op __y; }
108
109__ISREL_DEF(lessf, <, float_t)
110__ISREL_DEF(less, <, double_t)
111__ISREL_DEF(lessl, <, long double)
112__ISREL_DEF(lessequalf, <=, float_t)
113__ISREL_DEF(lessequal, <=, double_t)
114__ISREL_DEF(lessequall, <=, long double)
115__ISREL_DEF(lessgreaterf, !=, float_t)
116__ISREL_DEF(lessgreater, !=, double_t)
117__ISREL_DEF(lessgreaterl, !=, long double)
118__ISREL_DEF(greaterf, >, float_t)
119__ISREL_DEF(greater, >, double_t)
120__ISREL_DEF(greaterl, >, long double)
121__ISREL_DEF(greaterequalf, >=, float_t)
122__ISREL_DEF(greaterequal, >=, double_t)
123__ISREL_DEF(greaterequall, >=, long double)
124
125#define __tg_pred_2(x, y, p) ( \
126 sizeof((x)+(y)) == sizeof(float) ? p##f(x, y) : \
127 sizeof((x)+(y)) == sizeof(double) ? p(x, y) : \
128 p##l(x, y) )
129
130#define isless(x, y) __tg_pred_2(x, y, __isless)
131#define islessequal(x, y) __tg_pred_2(x, y, __islessequal)
132#define islessgreater(x, y) __tg_pred_2(x, y, __islessgreater)
133#define isgreater(x, y) __tg_pred_2(x, y, __isgreater)
134#define isgreaterequal(x, y) __tg_pred_2(x, y, __isgreaterequal)
135#else
136#define fpclassify(x) (__builtin_fpclassify(FP_NAN, FP_INFINITE, \
137 FP_NORMAL, FP_SUBNORMAL, \
138 FP_ZERO, x))
139#define isinf(x) (__builtin_isinf(x))
140#define isnan(x) (__builtin_isnan(x))
141#define isnormal(x) (__builtin_isnormal(x))
142#define isfinite(x) (__builtin_isfinite(x))
143#define signbit(x) (__builtin_signbit(x))
144#define isunordered(x, y) (__builtin_isunordered(x, y))
145#define isless(x, y) (__builtin_isless(x, y))
146#define islessequal(x, y) (__builtin_islessequal(x, y))
147#define islessgreater(x, y) (__builtin_islessgreater(x, y))
148#define isgreater(x, y) (__builtin_isgreater(x, y))
149#define isgreaterequal(x, y) (__builtin_isgreaterequal(x, y))
150#endif
151
152double acos(double);
153float acosf(float);
154long double acosl(long double);
155
156double acosh(double);
157float acoshf(float);
158long double acoshl(long double);
159
160double asin(double);
161float asinf(float);
162long double asinl(long double);
163
164double asinh(double);
165float asinhf(float);
166long double asinhl(long double);
167
168double atan(double);
169float atanf(float);
170long double atanl(long double);
171
172double atan2(double, double);
173float atan2f(float, float);
174long double atan2l(long double, long double);
175
176double atanh(double);
177float atanhf(float);
178long double atanhl(long double);
179
180double cbrt(double);
181float cbrtf(float);
182long double cbrtl(long double);
183
184double ceil(double);
185float ceilf(float);
186long double ceill(long double);
187
188double copysign(double, double);
189float copysignf(float, float);
190long double copysignl(long double, long double);
191
192double cos(double);
193float cosf(float);
194long double cosl(long double);
195
196double cosh(double);
197float coshf(float);
198long double coshl(long double);
199
200double erf(double);
201float erff(float);
202long double erfl(long double);
203
204double erfc(double);
205float erfcf(float);
206long double erfcl(long double);
207
208double exp(double);
209float expf(float);
210long double expl(long double);
211
212double exp2(double);
213float exp2f(float);
214long double exp2l(long double);
215
216double expm1(double);
217float expm1f(float);
218long double expm1l(long double);
219
220double fabs(double);
221float fabsf(float);
222long double fabsl(long double);
223
224double fdim(double, double);
225float fdimf(float, float);
226long double fdiml(long double, long double);
227
228double floor(double);
229float floorf(float);
230long double floorl(long double);
231
232double fma(double, double, double);
233float fmaf(float, float, float);
234long double fmal(long double, long double, long double);
235
236double fmax(double, double);
237float fmaxf(float, float);
238long double fmaxl(long double, long double);
239
240double fmin(double, double);
241float fminf(float, float);
242long double fminl(long double, long double);
243
244double fmod(double, double);
245float fmodf(float, float);
246long double fmodl(long double, long double);
247
248double frexp(double, int *);
249float frexpf(float, int *);
250long double frexpl(long double, int *);
251
252double hypot(double, double);
253float hypotf(float, float);
254long double hypotl(long double, long double);
255
256int ilogb(double);
257int ilogbf(float);
258int ilogbl(long double);
259
260double ldexp(double, int);
261float ldexpf(float, int);
262long double ldexpl(long double, int);
263
264double lgamma(double);
265float lgammaf(float);
266long double lgammal(long double);
267
268long long llrint(double);
269long long llrintf(float);
270long long llrintl(long double);
271
272long long llround(double);
273long long llroundf(float);
274long long llroundl(long double);
275
276double log(double);
277float logf(float);
278long double logl(long double);
279
280double log10(double);
281float log10f(float);
282long double log10l(long double);
283
284double log1p(double);
285float log1pf(float);
286long double log1pl(long double);
287
288double log2(double);
289float log2f(float);
290long double log2l(long double);
291
292double logb(double);
293float logbf(float);
294long double logbl(long double);
295
296long lrint(double);
297long lrintf(float);
298long lrintl(long double);
299
300long lround(double);
301long lroundf(float);
302long lroundl(long double);
303
304double modf(double, double *);
305float modff(float, float *);
306long double modfl(long double, long double *);
307
308double nan(const char *);
309float nanf(const char *);
310long double nanl(const char *);
311
312double nearbyint(double);
313float nearbyintf(float);
314long double nearbyintl(long double);
315
316double nextafter(double, double);
317float nextafterf(float, float);
318long double nextafterl(long double, long double);
319
320double nexttoward(double, long double);
321float nexttowardf(float, long double);
322long double nexttowardl(long double, long double);
323
324double pow(double, double);
325float powf(float, float);
326long double powl(long double, long double);
327
328double remainder(double, double);
329float remainderf(float, float);
330long double remainderl(long double, long double);
331
332double remquo(double, double, int *);
333float remquof(float, float, int *);
334long double remquol(long double, long double, int *);
335
336double rint(double);
337float rintf(float);
338long double rintl(long double);
339
340double round(double);
341float roundf(float);
342long double roundl(long double);
343
344double scalbln(double, long);
345float scalblnf(float, long);
346long double scalblnl(long double, long);
347
348double scalbn(double, int);
349float scalbnf(float, int);
350long double scalbnl(long double, int);
351
352double sin(double);
353float sinf(float);
354long double sinl(long double);
355
356double sinh(double);
357float sinhf(float);
358long double sinhl(long double);
359
360double sqrt(double);
361float sqrtf(float);
362long double sqrtl(long double);
363
364double tan(double);
365float tanf(float);
366long double tanl(long double);
367
368double tanh(double);
369float tanhf(float);
370long double tanhl(long double);
371
372double tgamma(double);
373float tgammaf(float);
374long double tgammal(long double);
375
376double trunc(double);
377float truncf(float);
378long double truncl(long double);
379
380
381#if defined(_XOPEN_SOURCE) || defined(_BSD_SOURCE)
382#undef MAXFLOAT
383#define MAXFLOAT 3.40282346638528859812e+38F
384#endif
385
386#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
387#define M_E 2.7182818284590452354 /* e */
388#define M_LOG2E 1.4426950408889634074 /* log_2 e */
389#define M_LOG10E 0.43429448190325182765 /* log_10 e */
390#define M_LN2 0.69314718055994530942 /* log_e 2 */
391#define M_LN10 2.30258509299404568402 /* log_e 10 */
392#define M_PI 3.14159265358979323846 /* pi */
393#define M_PI_2 1.57079632679489661923 /* pi/2 */
394#define M_PI_4 0.78539816339744830962 /* pi/4 */
395#define M_1_PI 0.31830988618379067154 /* 1/pi */
396#define M_2_PI 0.63661977236758134308 /* 2/pi */
397#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
398#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
399#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
400
401extern int signgam;
402
403double j0(double);
404double j1(double);
405double jn(int, double);
406
407double y0(double);
408double y1(double);
409double yn(int, double);
410#endif
411
412#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
413#define HUGE 3.40282346638528859812e+38F
414
415double drem(double, double);
416float dremf(float, float);
417
418int finite(double);
419int finitef(float);
420
421double scalb(double, double);
422float scalbf(float, float);
423
424double significand(double);
425float significandf(float);
426
427double lgamma_r(double, int*);
428float lgammaf_r(float, int*);
429
430float j0f(float);
431float j1f(float);
432float jnf(int, float);
433
434float y0f(float);
435float y1f(float);
436float ynf(int, float);
437#endif
438
439#ifdef _GNU_SOURCE
440long double lgammal_r(long double, int*);
441
442void sincos(double, double*, double*);
443void sincosf(float, float*, float*);
444void sincosl(long double, long double*, long double*);
445
446double exp10(double);
447float exp10f(float);
448long double exp10l(long double);
449
450double pow10(double);
451float pow10f(float);
452long double pow10l(long double);
453#endif
454
455#ifdef __cplusplus
456}
457#endif
458
459#endif