Create the USB task queues before creating the event thread to avoid
[dragonfly.git] / include / math.h
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1/* $NetBSD: math.h,v 1.40 2005/02/03 04:39:32 perry Exp $ */
2
3/*
4 * ====================================================
5 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 *
7 * Developed at SunPro, a Sun Microsystems, Inc. business.
8 * Permission to use, copy, modify, and distribute this
9 * software is freely granted, provided that this notice
10 * is preserved.
11 * ====================================================
12 *
13 * $NetBSD: math.h,v 1.40 2005/02/03 04:39:32 perry Exp $
f25effa9 14 * $DragonFly: src/include/math.h,v 1.8 2006/05/17 14:06:36 swildner Exp $
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15 */
16
17/*
18 * @(#)fdlibm.h 5.1 93/09/24
19 */
20
21#ifndef _MATH_H_
22#define _MATH_H_
23
24#include <sys/cdefs.h>
25
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26#if __GNUC_PREREQ__(3, 3) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800)
27#define __MATH_BUILTIN_CONSTANTS
28#endif
29
30#if __GNUC_PREREQ__(3, 0) && !defined(__INTEL_COMPILER)
31#define __MATH_BUILTIN_RELOPS
32#endif
33
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34union __float_u {
35 unsigned char __dummy[sizeof(float)];
36 float __val;
37};
38
39union __double_u {
40 unsigned char __dummy[sizeof(double)];
41 double __val;
42};
43
44union __long_double_u {
45 unsigned char __dummy[sizeof(long double)];
46 long double __val;
47};
48
49#include <machine/math.h>
50
51#ifdef __HAVE_LONG_DOUBLE
52#define __fpmacro_unary_floating(__name, __arg0) \
53 /* LINTED */ \
54 ((sizeof (__arg0) == sizeof (float)) \
55 ? __ ## __name ## f (__arg0) \
56 : (sizeof (__arg0) == sizeof (double)) \
57 ? __ ## __name ## d (__arg0) \
58 : __ ## __name ## l (__arg0))
59#else
60#define __fpmacro_unary_floating(__name, __arg0) \
61 /* LINTED */ \
62 ((sizeof (__arg0) == sizeof (float)) \
63 ? __ ## __name ## f (__arg0) \
64 : __ ## __name ## d (__arg0))
65#endif /* __HAVE_LONG_DOUBLE */
66
67/*
68 * ANSI/POSIX
69 */
70/* 7.12#3 HUGE_VAL, HUGELF, HUGE_VALL */
71extern __const union __double_u __infinity;
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72#ifdef __MATH_BUILTIN_CONSTANTS
73#define HUGE_VAL __builtin_huge_val()
74#else
75#define HUGE_VAL __infinity.__val
76#endif
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77
78/*
79 * ISO C99
80 */
81#if __ISO_C_VISIBLE >= 1999
82/* 7.12#3 HUGE_VAL, HUGELF, HUGE_VALL */
83extern __const union __float_u __infinityf;
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84#ifdef __MATH_BUILTIN_CONSTANTS
85#define HUGE_VALF __builtin_huge_valf()
86#else
b34b60bc 87#define HUGE_VALF __infinityf.__val
1ce93220 88#endif
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89
90extern __const union __long_double_u __infinityl;
91#define HUGE_VALL __infinityl.__val
92
93/* 7.12#4 INFINITY */
1ce93220 94#ifdef __MATH_BUILTIN_CONSTANTS
f2be1b3f 95#define INFINITY __builtin_inf()
1ce93220 96#elif defined(__INFINITY)
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97#define INFINITY __INFINITY /* float constant which overflows */
98#else
99#define INFINITY HUGE_VALF /* positive infinity */
100#endif /* __INFINITY */
101
102/* 7.12#5 NAN: a quiet NaN, if supported */
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103#ifdef __MATH_BUILTIN_CONSTANTS
104#define NAN __builtin_nan("")
105#elif defined(__HAVE_NANF)
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106extern __const union __float_u __nanf;
107#define NAN __nanf.__val
108#endif /* __HAVE_NANF */
109
110/* 7.12#6 number classification macros */
111#define FP_INFINITE 0x00
112#define FP_NAN 0x01
113#define FP_NORMAL 0x02
114#define FP_SUBNORMAL 0x03
115#define FP_ZERO 0x04
116/* NetBSD extensions */
117#define _FP_LOMD 0x80 /* range for machine-specific classes */
118#define _FP_HIMD 0xff
119
120#endif /* ISO C99 */
121
122/*
123 * XOPEN/SVID
124 */
125#if __XSI_VISIBLE > 0
126#define M_E 2.7182818284590452354 /* e */
127#define M_LOG2E 1.4426950408889634074 /* log 2e */
128#define M_LOG10E 0.43429448190325182765 /* log 10e */
129#define M_LN2 0.69314718055994530942 /* log e2 */
130#define M_LN10 2.30258509299404568402 /* log e10 */
131#define M_PI 3.14159265358979323846 /* pi */
132#define M_PI_2 1.57079632679489661923 /* pi/2 */
133#define M_PI_4 0.78539816339744830962 /* pi/4 */
134#define M_1_PI 0.31830988618379067154 /* 1/pi */
135#define M_2_PI 0.63661977236758134308 /* 2/pi */
136#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
137#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
138#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
139
140#define MAXFLOAT ((float)3.40282346638528860e+38)
141extern int signgam;
142#endif /* _XSI_VISIBLE */
143
144#if __DF_VISIBLE
145#define HUGE MAXFLOAT
146
147/*
148 * set X_TLOSS = pi*2**52, which is possibly defined in <values.h>
149 * (one may replace the following line by "#include <values.h>")
150 */
151
152#define X_TLOSS 1.41484755040568800000e+16
153
154#define DOMAIN 1
155#define SING 2
156#define OVERFLOW 3
157#define UNDERFLOW 4
158#define TLOSS 5
159#define PLOSS 6
160
161#endif /* __DF_VISIBLE */
162
163__BEGIN_DECLS
164/*
165 * ANSI/POSIX
166 */
167double acos(double);
168double asin(double);
169double atan(double);
170double atan2(double, double);
171double cos(double);
172double sin(double);
173double tan(double);
174
175double cosh(double);
176double sinh(double);
177double tanh(double);
178
179double exp(double);
180double frexp(double, int *);
181double ldexp(double, int);
182double log(double);
183double log10(double);
184double modf(double, double *);
185
186double pow(double, double);
187double sqrt(double);
188
189double ceil(double);
190double fabs(double);
191double floor(double);
192double fmod(double, double);
193
194#if __XSI_VISIBLE > 0
195double erf(double);
196double erfc(double);
197double gamma(double);
198double hypot(double, double);
199int finite(double);
200double j0(double);
201double j1(double);
202double jn(int, double);
203double lgamma(double);
204double y0(double);
205double y1(double);
206double yn(int, double);
207#endif /* __XSI_VISIBLE */
208
209#if __XSI_VISIBLE >= 500
210double acosh(double);
211double asinh(double);
212double atanh(double);
213double cbrt(double);
214double expm1(double);
215int ilogb(double);
216double log1p(double);
217double logb(double);
218double nextafter(double, double);
219double remainder(double, double);
220double rint(double);
221double scalb(double, double);
222#endif /* __XSI_VISIBLE >= 500 */
223
224/*
225 * ISO C99
226 */
227#if __ISO_C_VISIBLE >= 1999
228/* 7.12.3.1 int fpclassify(real-floating x) */
229#define fpclassify(__x) __fpmacro_unary_floating(fpclassify, __x)
230
231/* 7.12.3.2 int isfinite(real-floating x) */
232#define isfinite(__x) __fpmacro_unary_floating(isfinite, __x)
233
234/* 7.12.3.5 int isnormal(real-floating x) */
235#define isnormal(__x) (fpclassify(__x) == FP_NORMAL)
236
237/* 7.12.3.6 int signbit(real-floating x) */
238#define signbit(__x) __fpmacro_unary_floating(signbit, __x)
239
240/* 7.12.4 trigonometric */
241
242float acosf(float);
243float asinf(float);
244float atanf(float);
245float atan2f(float, float);
246float cosf(float);
247float sinf(float);
248float tanf(float);
249
250/* 7.12.5 hyperbolic */
251
252float acoshf(float);
253float asinhf(float);
254float atanhf(float);
255float coshf(float);
256float sinhf(float);
257float tanhf(float);
258
259/* 7.12.6 exp / log */
260
261float expf(float);
262float expm1f(float);
263float frexpf(float, int *);
264int ilogbf(float);
265float ldexpf(float, int);
266float logf(float);
267float log10f(float);
268float log1pf(float);
269float logbf(float);
270float modff(float, float *);
271float scalbnf(float, int);
272
273/* 7.12.7 power / absolute */
274
275float cbrtf(float);
276float fabsf(float);
277float hypotf(float, float);
278float powf(float, float);
279float sqrtf(float);
280
281/* 7.12.8 error / gamma */
282
283float erff(float);
284float erfcf(float);
285float lgammaf(float);
286
287/* 7.12.9 nearest integer */
288
289float ceilf(float);
290float floorf(float);
291float rintf(float);
292double round(double);
293float roundf(float);
294long int lrint(double);
295long int lrintf(float);
296/* LONGLONG */
297long long int llrint(double);
298/* LONGLONG */
299long long int llrintf(float);
300long int lround(double);
301long int lroundf(float);
302/* LONGLONG */
303long long int llround(double);
304/* LONGLONG */
305long long int llroundf(float);
306
307/* 7.12.10 remainder */
308
309float fmodf(float, float);
310float remainderf(float, float);
311
312/* 7.2.11 manipulation */
313
314float copysignf(float, float);
315float nextafterf(float, float);
316
317#endif /* __ISO_C_VISIBLE >= 1999 */
318
319#if __ISO_C_VISIBLE >= 1999
320/* 7.12.3.3 int isinf(real-floating x) */
321#ifdef __isinf
322#define isinf(__x) __isinf(__x)
323#else
324#define isinf(__x) __fpmacro_unary_floating(isinf, __x)
325#endif
326
327/* 7.12.3.4 int isnan(real-floating x) */
328#ifdef __isnan
329#define isnan(__x) __isnan(__x)
330#else
331#define isnan(__x) __fpmacro_unary_floating(isnan, __x)
332#endif
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333
334/* 7.12.14 Comparision macros */
335#ifdef __MATH_BUILTIN_RELOPS
336#define isgreater(x, y) __builtin_isgreater((x), (y))
337#define isgreaterequal(x, y) __builtin_isgreaterequal((x), (y))
338#define isless(x, y) __builtin_isless((x), (y))
339#define islessequal(x, y) __builtin_islessequal((x), (y))
340#define islessgreater(x, y) __builtin_islessgreater((x), (y))
341#define isunordered(x, y) __builtin_isunordered((x), (y))
342#else
343#define isgreater(x, y) (!isunordered((x), (y)) && (x) > (y))
344#define isgreaterequal(x, y) (!isunordered((x), (y)) && (x) >= (y))
345#define isless(x, y) (!isunordered((x), (y)) && (x) < (y))
346#define islessequal(x, y) (!isunordered((x), (y)) && (x) <= (y))
347#define islessgreater(x, y) (!isunordered((x), (y)) && \
348 ((x) > (y) || (y) > (x)))
349#define isunordered(x, y) (isnan(x) || isnan(y))
350#endif /* __MATH_BUILTIN_RELOPS */
351
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352#endif /* __ISO_C_VISIBLE >= 1999 */
353
354#if __DF_VISIBLE
355/*
356 * IEEE Test Vector
357 */
358double significand(double);
359
360/*
361 * Functions callable from C, intended to support IEEE arithmetic.
362 */
363double copysign(double, double);
364double scalbn(double, int);
365
366/*
367 * BSD math library entry points
368 */
369double drem(double, double);
370
371/*
372 * Reentrant version of gamma & lgamma; passes signgam back by reference
373 * as the second argument; user must allocate space for signgam.
374 */
375double gamma_r(double, int *);
376double lgamma_r(double, int *);
377#endif /* __DF_VISIBLE */
378
379
380#if __DF_VISIBLE
381
382/* float versions of ANSI/POSIX functions */
383
384float gammaf(float);
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385int finitef(float);
386float j0f(float);
387float j1f(float);
388float jnf(int, float);
389float y0f(float);
390float y1f(float);
391float ynf(int, float);
392
393float scalbf(float, float);
394
395/*
396 * float version of IEEE Test Vector
397 */
398float significandf(float);
399
400/*
401 * float versions of BSD math library entry points
402 */
403float dremf(float, float);
404
405/*
406 * Float versions of reentrant version of gamma & lgamma; passes
407 * signgam back by reference as the second argument; user must
408 * allocate space for signgam.
409 */
410float gammaf_r(float, int *);
411float lgammaf_r(float, int *);
412#endif /* __DF_VISIBLE */
413
414/*
415 * Library implementation
416 */
417int __fpclassifyf(float);
418int __fpclassifyd(double);
419int __isfinitef(float);
420int __isfinited(double);
421int __isinff(float);
422int __isinfd(double);
423int __isnanf(float);
424int __isnand(double);
425int __signbitf(float);
426int __signbitd(double);
427
428#ifdef __HAVE_LONG_DOUBLE
429int __fpclassifyl(long double);
430int __isfinitel(long double);
431int __isinfl(long double);
432int __isnanl(long double);
433int __signbitl(long double);
434#endif
435__END_DECLS
436
437#endif /* _MATH_H_ */