Unofficial Dub Package Documentation 
1 /**
2  * D header file for C99.
3  *
4  * Copyright: Public Domain
5  * License:   Public Domain
6  * Authors:   Sean Kelly, Walter Bright
7  * Standards: ISO/IEC 9899:1999 (E)
8  */
9 module tango.stdc.math;
10 
11 import tango.stdc.config;
12 import tango.math.IEEE;
13 
14 extern (C):
15 
16 alias float  float_t;
17 alias double double_t;
18 
19 const double HUGE_VAL      = double.infinity;
20 const double HUGE_VALF     = float.infinity;
21 const double HUGE_VALL     = real.infinity;
22 
23 const float INFINITY       = float.infinity;
24 const float NAN            = float.nan;
25 
26 const int FP_ILOGB0        = int.min;
27 const int FP_ILOGBNAN      = int.min;
28 
29 const int MATH_ERRNO       = 1;
30 const int MATH_ERREXCEPT   = 2;
31 const int math_errhandling = MATH_ERRNO | MATH_ERREXCEPT;
32 
33 version( none )
34 {
35     //
36     // these functions are all macros in C
37     //
38 
39     //int fpclassify(real-floating x);
40     int fpclassify(float x);
41     int fpclassify(double x);
42     int fpclassify(real x);
43 
44     //int isfinite(real-floating x);
45     int isfinite(float x);
46     int isfinite(double x);
47     int isfinite(real x);
48 
49     //int isinf(real-floating x);
50     int isinf(float x);
51     int isinf(double x);
52     int isinf(real x);
53 
54     //int isnan(real-floating x);
55     int isnan(float x);
56     int isnan(double x);
57     int isnan(real x);
58 
59     //int isnormal(real-floating x);
60     int isnormal(float x);
61     int isnormal(double x);
62     int isnormal(real x);
63 
64     //int signbit(real-floating x);
65     int signbit(float x);
66     int signbit(double x);
67     int signbit(real x);
68 
69     //int isgreater(real-floating x, real-floating y);
70     int isgreater(float x, float y);
71     int isgreater(double x, double y);
72     int isgreater(real x, real y);
73 
74     //int isgreaterequal(real-floating x, real-floating y);
75     int isgreaterequal(float x, float y);
76     int isgreaterequal(double x, double y);
77     int isgreaterequal(real x, real y);
78 
79     //int isless(real-floating x, real-floating y);
80     int isless(float x, float y);
81     int isless(double x, double y);
82     int isless(real x, real y);
83 
84     //int islessequal(real-floating x, real-floating y);
85     int islessequal(float x, float y);
86     int islessequal(double x, double y);
87     int islessequal(real x, real y);
88 
89     //int islessgreater(real-floating x, real-floating y);
90     int islessgreater(float x, float y);
91     int islessgreater(double x, double y);
92     int islessgreater(real x, real y);
93 
94     //int isunordered(real-floating x, real-floating y);
95     int isunordered(float x, float y);
96     int isunordered(double x, double y);
97     int isunordered(real x, real y);
98 }
99 
100 version( DigitalMars ) version( Win32 )
101     version = DigitalMarsWin32;
102 
103 version( DigitalMarsWin32 )
104 {
105     enum
106     {
107         FP_NANS        = 0,
108         FP_NANQ        = 1,
109         FP_INFINITE    = 2,
110         FP_NORMAL      = 3,
111         FP_SUBNORMAL   = 4,
112         FP_ZERO        = 5,
113         FP_NAN         = FP_NANQ,
114         FP_EMPTY       = 6,
115         FP_UNSUPPORTED = 7,
116     }
117 
118     enum
119     {
120         FP_FAST_FMA  = 0,
121         FP_FAST_FMAF = 0,
122         FP_FAST_FMAL = 0,
123     }
124 
125     uint __fpclassify_f(float x);
126     uint __fpclassify_d(double x);
127     uint __fpclassify_ld(real x);
128 
129   extern (D)
130   {
131     //int fpclassify(real-floating x);
132     int fpclassify(float x)     { return __fpclassify_f(x); }
133     int fpclassify(double x)    { return __fpclassify_d(x); }
134     int fpclassify(real x)
135     {
136         return (real.sizeof == double.sizeof)
137             ? __fpclassify_d(x)
138             : __fpclassify_ld(x);
139     }
140 
141     //int isfinite(real-floating x);
142     int isfinite(float x)       { return fpclassify(x) >= FP_NORMAL; }
143     int isfinite(double x)      { return fpclassify(x) >= FP_NORMAL; }
144     int isfinite(real x)        { return fpclassify(x) >= FP_NORMAL; }
145 
146     //int isinf(real-floating x);
147     int isinf(float x)          { return fpclassify(x) == FP_INFINITE; }
148     int isinf(double x)         { return fpclassify(x) == FP_INFINITE; }
149     int isinf(real x)           { return fpclassify(x) == FP_INFINITE; }
150 
151     //int isnan(real-floating x);
152     int isnan(float x)          { return fpclassify(x) <= FP_NANQ;   }
153     int isnan(double x)         { return fpclassify(x) <= FP_NANQ;   }
154     int isnan(real x)           { return fpclassify(x) <= FP_NANQ;   }
155 
156     //int isnormal(real-floating x);
157     int isnormal(float x)       { return fpclassify(x) == FP_NORMAL; }
158     int isnormal(double x)      { return fpclassify(x) == FP_NORMAL; }
159     int isnormal(real x)        { return fpclassify(x) == FP_NORMAL; }
160 
161     //int signbit(real-floating x);
162     int signbit(float x)     { return (cast(short*)&(x))[1] & 0x8000; }
163     int signbit(double x)    { return (cast(short*)&(x))[3] & 0x8000; }
164     int signbit(real x)
165     {
166         return (real.sizeof == double.sizeof)
167             ? (cast(short*)&(x))[3] & 0x8000
168             : (cast(short*)&(x))[4] & 0x8000;
169     }
170   }
171 }
172 else version( linux )
173 {
174     enum
175     {
176         FP_NAN,
177         FP_INFINITE,
178         FP_ZERO,
179         FP_SUBNORMAL,
180         FP_NORMAL,
181     }
182 
183     enum
184     {
185         FP_FAST_FMA  = 0,
186         FP_FAST_FMAF = 0,
187         FP_FAST_FMAL = 0,
188     }
189 
190     int __fpclassifyf(float x);
191     int __fpclassify(double x);
192     int __fpclassifyl(real x);
193 
194     int __finitef(float x);
195     int __finite(double x);
196     int __finitel(real x);
197 
198     int __isinff(float x);
199     int __isinf(double x);
200     int __isinfl(real x);
201 
202     int __isnanf(float x);
203     int __isnan(double x);
204     int __isnanl(real x);
205 
206     int __signbitf(float x);
207     int __signbit(double x);
208     int __signbitl(real x);
209 
210   extern (D)
211   {
212     //int fpclassify(real-floating x);
213     int fpclassify(float x)     { return __fpclassifyf(x); }
214     int fpclassify(double x)    { return __fpclassify(x);  }
215     int fpclassify(real x)
216     {
217         return (real.sizeof == double.sizeof)
218             ? __fpclassify(x)
219             : __fpclassifyl(x);
220     }
221 
222     //int isfinite(real-floating x);
223     int isfinite(float x)       { return __finitef(x); }
224     int isfinite(double x)      { return __finite(x);  }
225     int isfinite(real x)
226     {
227         return (real.sizeof == double.sizeof)
228             ? __finite(x)
229             : __finitel(x);
230     }
231 
232     //int isinf(real-floating x);
233     int isinf(float x)          { return __isinff(x);  }
234     int isinf(double x)         { return __isinf(x);   }
235     int isinf(real x)
236     {
237         return (real.sizeof == double.sizeof)
238             ? __isinf(x)
239             : __isinfl(x);
240     }
241 
242     //int isnan(real-floating x);
243     int isnan(float x)          { return __isnanf(x);  }
244     int isnan(double x)         { return __isnan(x);   }
245     int isnan(real x)
246     {
247         return (real.sizeof == double.sizeof)
248             ? __isnan(x)
249             : __isnanl(x);
250     }
251 
252     //int isnormal(real-floating x);
253     int isnormal(float x)       { return fpclassify(x) == FP_NORMAL; }
254     int isnormal(double x)      { return fpclassify(x) == FP_NORMAL; }
255     int isnormal(real x)        { return fpclassify(x) == FP_NORMAL; }
256 
257     //int signbit(real-floating x);
258     int signbit(float x)     { return __signbitf(x); }
259     int signbit(double x)    { return __signbit(x);  }
260     int signbit(real x)
261     {
262         return (real.sizeof == double.sizeof)
263             ? __signbit(x)
264             : __signbitl(x);
265     }
266   }
267 }
268 else version( darwin )
269 {
270     enum
271     {
272         FP_NAN         = 1,
273         FP_INFINITE    = 2,
274         FP_ZERO        = 3,
275         FP_NORMAL      = 4,
276         FP_SUBNORMAL   = 5,
277         FP_SUPERNORMAL = 6
278     }
279 
280     enum
281     {
282         FP_FAST_FMA  = 0,
283         FP_FAST_FMAF = 0,
284         FP_FAST_FMAL = 0,
285     }
286 
287     int __fpclassifyf(float x);
288     int __fpclassifyd(double x);
289     int __fpclassify(real x);
290 
291     int __isfinitef(float x);
292     int __isfinited(double x);
293     int __isfinite(real x);
294 
295     int __isinff(float x);
296     int __isinfd(double x);
297     int __isinf(real x);
298 
299     int __isnanf(float x);
300     int __isnand(double x);
301     int __isnan(real x);
302 
303     int __signbitf(float x);
304     int __signbitd(double x);
305     int __signbitl(real x);
306 
307   extern (D)
308   {
309     //int fpclassify(real-floating x);
310     int fpclassify(float x)     { return __fpclassifyf(x); }
311     int fpclassify(double x)    { return __fpclassifyd(x); }
312     int fpclassify(real x)
313     {
314         return (real.sizeof == double.sizeof)
315             ? __fpclassifyd(x)
316             : __fpclassify(x);
317     }
318 
319     //int isfinite(real-floating x);
320     int isfinite(float x)       { return __isfinitef(x); }
321     int isfinite(double x)      { return __isfinited(x); }
322     int isfinite(real x)
323     {
324         return (real.sizeof == double.sizeof)
325             ? __isfinited(x)
326             : __isfinite(x);
327     }
328 
329     //int isinf(real-floating x);
330     int isinf(float x)          { return __isinff(x); }
331     int isinf(double x)         { return __isinfd(x); }
332     int isinf(real x)
333     {
334         return (real.sizeof == double.sizeof)
335             ? __isinfd(x)
336             : __isinf(x);
337     }
338 
339     //int isnan(real-floating x);
340     int isnan(float x)          { return __isnanf(x); }
341     int isnan(double x)         { return __isnand(x); }
342     int isnan(real x)
343     {
344         return (real.sizeof == double.sizeof)
345             ? __isnand(x)
346             : __isnan(x);
347     }
348 
349     //int isnormal(real-floating x);
350     int isnormal(float x)       { return fpclassify(x) == FP_NORMAL; }
351     int isnormal(double x)      { return fpclassify(x) == FP_NORMAL; }
352     int isnormal(real x)        { return fpclassify(x) == FP_NORMAL; }
353 
354     //int signbit(real-floating x);
355     int signbit(float x)     { return __signbitf(x); }
356     int signbit(double x)    { return __signbitd(x); }
357     int signbit(real x)
358     {
359         return (real.sizeof == double.sizeof)
360             ? __signbitd(x)
361             : __signbitl(x);
362     }
363   }
364 }
365 else version( FreeBSD )
366 {
367     enum
368     {
369         FP_INFINITE = 0x01,
370         FP_NAN = 0x02,
371         FP_NORMAL = 0x04,
372         FP_SUBNORMAL = 0x08,
373         FP_ZERO = 0x10
374     }
375 
376     enum
377     {
378         FP_FAST_FMA  = 0,
379         FP_FAST_FMAF = 0,
380         FP_FAST_FMAL = 0,
381     }
382 
383     int __fpclassifyd(double);
384     int __fpclassifyf(float);
385     int __fpclassifyl(real);
386     int __isfinitef(float);
387     int __isfinite(double);
388     int __isfinitel(real);
389     int __isinff(float);
390     int __isinfl(real);
391     int __isnanl(real);
392     int __isnormalf(float);
393     int __isnormal(double);
394     int __isnormall(real);
395     int __signbit(double);
396     int __signbitf(float);
397     int __signbitl(real);
398 
399   extern (D)
400   {
401     //int fpclassify(real-floating x);
402     int fpclassify(float x)     { return __fpclassifyf(x); }
403     int fpclassify(double x)    { return __fpclassifyd(x); }
404     int fpclassify(real x)    { return __fpclassifyl(x); }
405 
406     //int isfinite(real-floating x);
407     int isfinite(float x)       { return __isfinitef(x); }
408     int isfinite(double x)      { return __isfinite(x); }
409     int isfinite(real x)      { return __isfinitel(x); }
410 
411     //int isinf(real-floating x);
412     int isinf(float x)          { return __isinff(x); }
413     int isinf(double x)         { return __isinfl(x); }
414     int isinf(real x)         { return __isinfl(x); }
415 
416     //int isnan(real-floating x);
417     int isnan(float x)          { return __isnanl(x); }
418     int isnan(double x)         { return __isnanl(x); }
419     int isnan(real x)         { return __isnanl(x); }
420 
421     //int isnormal(real-floating x);
422     int isnormal(float x)       { return __isnormalf(x); }
423     int isnormal(double x)      { return __isnormal(x); }
424     int isnormal(real x)        { return __isnormall(x); }
425 
426     //int signbit(real-floating x);
427     int signbit(float x)     { return __signbitf(x); }
428     int signbit(double x)    { return __signbit(x); }
429     int signbit(real x)    { return __signbit(x); }
430     }
431 }
432 
433 extern (D)
434 {
435     //int isgreater(real-floating x, real-floating y);
436     int isgreater(float x, float y)        { return !(x !>  y); }
437     int isgreater(double x, double y)      { return !(x !>  y); }
438     int isgreater(real x, real y)          { return !(x !>  y); }
439 
440     //int isgreaterequal(real-floating x, real-floating y);
441     int isgreaterequal(float x, float y)   { return !(x !>= y); }
442     int isgreaterequal(double x, double y) { return !(x !>= y); }
443     int isgreaterequal(real x, real y)     { return !(x !>= y); }
444 
445     //int isless(real-floating x, real-floating y);
446     int isless(float x, float y)           { return !(x !<  y); }
447     int isless(double x, double y)         { return !(x !<  y); }
448     int isless(real x, real y)             { return !(x !<  y); }
449 
450     //int islessequal(real-floating x, real-floating y);
451     int islessequal(float x, float y)      { return !(x !<= y); }
452     int islessequal(double x, double y)    { return !(x !<= y); }
453     int islessequal(real x, real y)        { return !(x !<= y); }
454 
455     //int islessgreater(real-floating x, real-floating y);
456     int islessgreater(float x, float y)    { return !(x !<> y); }
457     int islessgreater(double x, double y)  { return !(x !<> y); }
458     int islessgreater(real x, real y)      { return !(x !<> y); }
459 
460     //int isunordered(real-floating x, real-floating y);
461     int isunordered(float x, float y)      { return !(x == y || x < y || x > y); }
462     int isunordered(double x, double y)    { return !(x == y || x < y || x > y); }
463     int isunordered(real x, real y)        { return !(x == y || x < y || x > y); }
464 }
465 
466 // NOTE: freebsd < 8-CURRENT doesn't appear to support *l, but we can
467 //       approximate.
468 version( FreeBSD )
469 {
470     double  acos(double x);
471     float   acosf(float x);
472     real    acosl(real x) { return acos(x); }
473 
474     double  asin(double x);
475     float   asinf(float x);
476     real    asinl(real x) { return asin(x); }
477 
478     double  atan(double x);
479     float   atanf(float x);
480     real    atanl(real x) { return atan(x); }
481 
482     double  atan2(double y, double x);
483     float   atan2f(float y, float x);
484     real    atan2l(real y, real x) { return atan2(y, x); }
485 
486     double  cos(double x);
487     float   cosf(float x);
488     real    cosl(real x) { return cos(x); }
489 
490     double  sin(double x);
491     float   sinf(float x);
492     real    sinl(real x) { return sin(x); }
493 
494     double  tan(double x);
495     float   tanf(float x);
496     real    tanl(real x) { return tan(x); }
497 
498     double  acosh(double x);
499     float   acoshf(float x);
500     real    acoshl(real x) { return acosh(x); }
501 
502     double  asinh(double x);
503     float   asinhf(float x);
504     real    asinhl(real x) { return asinh(x); }
505 
506     double  atanh(double x);
507     float   atanhf(float x);
508     real    atanhl(real x) { return atanh(x); }
509 
510     double  cosh(double x);
511     float   coshf(float x);
512     real    coshl(real x) { return cosh(x); }
513 
514     double  sinh(double x);
515     float   sinhf(float x);
516     real    sinhl(real x) { return sinh(x); }
517 
518     double  tanh(double x);
519     float   tanhf(float x);
520     real    tanhl(real x) { return tanh(x); }
521 
522     double  exp(double x);
523     float   expf(float x);
524     real    expl(real x) { return exp(x); }
525 
526     double  exp2(double x);
527     float   exp2f(float x);
528     real    exp2l(real x) { return exp2(x); }
529 
530     double  expm1(double x);
531     float   expm1f(float x);
532     real    expm1l(real x) { return expm1(x); }
533 
534     double  frexp(double value, int* exp);
535     float   frexpf(float value, int* exp);
536     real    frexpl(real value, int* exp) { return frexp(value, exp); }
537 
538     int     ilogb(double x);
539     int     ilogbf(float x);
540     int     ilogbl(real x) { return ilogb(x); }
541 
542     double  ldexp(double x, int exp);
543     float   ldexpf(float x, int exp);
544     real    ldexpl(real x, int exp) { return ldexp(x, exp); }
545 
546     double  log(double x);
547     float   logf(float x);
548     real    logl(real x) { return log(x); }
549 
550     double  log10(double x);
551     float   log10f(float x);
552     real    log10l(real x) { return log10(x); }
553 
554     double  log1p(double x);
555     float   log1pf(float x);
556     real    log1pl(real x) { return log1p(x); }
557 
558     private const real ONE_LN2 = 1 / 0x1.62e42fefa39ef358p-1L;
559     double  log2(double x) { return log(x) * ONE_LN2; }
560     float   log2f(float x) { return logf(x) * ONE_LN2; }
561     real    log2l(real x) { return logl(x) * ONE_LN2; }
562 
563     double  logb(double x);
564     float   logbf(float x);
565     real    logbl(real x) { return logb(x); }
566 
567     double  modf(double value, double* iptr);
568     float   modff(float value, float* iptr);
569     //real    modfl(real value, real *iptr); // nontrivial conversion
570 
571     double  scalbn(double x, int n);
572     float   scalbnf(float x, int n);
573     real    scalbnl(real x, int n) { return scalbn(x, n); }
574 
575     double  scalbln(double x, c_long n);
576     float   scalblnf(float x, c_long n);
577     real    scalblnl(real x, c_long n) { return scalbln(x, n); }
578 
579 
580     double  cbrt(double x);
581     float   cbrtf(float x);
582     real    cbrtl(real x) { return cbrt(x); }
583 
584     double  fabs(double x);
585     float   fabsf(float x);
586     real    fabsl(real x) { return fabs(x); }
587 
588     double  hypot(double x, double y);
589     float   hypotf(float x, float y);
590     real    hypotl(real x, real y) { return hypot(x, y); }
591 
592     double  pow(double x, double y);
593     float   powf(float x, float y);
594     real    powl(real x, real y) { return pow(x, y); }
595 
596     double  sqrt(double x);
597     float   sqrtf(float x);
598     real    sqrtl(real x) { return sqrt(x); }
599 
600     double  erf(double x);
601     float   erff(float x);
602     real    erfl(real x) { return erf(x); }
603 
604     double  erfc(double x);
605     float   erfcf(float x);
606     real    erfcl(real x) { return erfc(x); }
607 
608     double  lgamma(double x);
609     float   lgammaf(float x);
610     real    lgammal(real x) { return lgamma(x); }
611 
612     double  tgamma(double x);
613     float   tgammaf(float x);
614     real    tgammal(real x) { return tgamma(x); }
615 
616     double  ceil(double x);
617     float   ceilf(float x);
618     real    ceill(real x) { return ceil(x); }
619 
620     double  floor(double x);
621     float   floorf(float x);
622     real    floorl(real x) { return floor(x); }
623 
624     double  nearbyint(double x);
625     float   nearbyintf(float x);
626     real    nearbyintl(real x) { return nearbyint(x); }
627 
628     double  rint(double x);
629     float   rintf(float x);
630     real    rintl(real x) { return rint(x); }
631 
632     c_long  lrint(double x);
633     c_long  lrintf(float x);
634     c_long  lrintl(real x) { return lrint(x); }
635 
636     long    llrint(double x);
637     long    llrintf(float x);
638     long    llrintl(real x) { return llrint(x); }
639 
640     double  round(double x);
641     float   roundf(float x);
642     real    roundl(real x) { return round(x); }
643 
644     c_long  lround(double x);
645     c_long  lroundf(float x);
646     c_long  lroundl(real x) { return lround(x); }
647 
648     long    llround(double x);
649     long    llroundf(float x);
650     long    llroundl(real x) { return llround(x); }
651 
652     double  trunc(double x);
653     float   truncf(float x);
654     real    truncl(real x) { return trunc(x); }
655 
656     double  fmod(double x, double y);
657     float   fmodf(float x, float y);
658     real    fmodl(real x, real y) { return fmod(x, y); }
659 
660     double  remainder(double x, double y);
661     float   remainderf(float x, float y);
662     real    remainderl(real x, real y) { return remainder(x, y); }
663 
664     double  remquo(double x, double y, int* quo);
665     float   remquof(float x, float y, int* quo);
666     real    remquol(real x, real y, int* quo) { return remquo(x, y, quo); }
667 
668     double  copysign(double x, double y);
669     float   copysignf(float x, float y);
670     real    copysignl(real x, real y) { return copysign(x, y); }
671 
672 //  double  nan(char* tagp);
673 //  float   nanf(char* tagp);
674 //  real    nanl(char* tagp);
675 
676     double  nextafter(double x, double y);
677     float   nextafterf(float x, float y);
678     real    nextafterl(real x, real y) { return nextafter(x, y); }
679 
680     double  nexttoward(double x, real y);
681     float   nexttowardf(float x, real y);
682     real    nexttowardl(real x, real y) { return nexttoward(x, y); }
683 
684     double  fdim(double x, double y);
685     float   fdimf(float x, float y);
686     real    fdiml(real x, real y) { return fdim(x, y); }
687 
688     double  fmax(double x, double y);
689     float   fmaxf(float x, float y);
690     real    fmaxl(real x, real y) { return fmax(x, y); }
691 
692     double  fmin(double x, double y);
693     float   fminf(float x, float y);
694     real    fminl(real x, real y) { return fmin(x, y); }
695 
696     double  fma(double x, double y, double z);
697     float   fmaf(float x, float y, float z);
698     real    fmal(real x, real y, real z) { return fma(x, y, z); }
699 }
700 else
701 {
702     double  acos(double x);
703     float   acosf(float x);
704     real    acosl(real x);
705 
706     double  asin(double x);
707     float   asinf(float x);
708     real    asinl(real x);
709 
710     double  atan(double x);
711     float   atanf(float x);
712     real    atanl(real x);
713 
714     double  atan2(double y, double x);
715     float   atan2f(float y, float x);
716     real    atan2l(real y, real x);
717 
718     double  cos(double x);
719     float   cosf(float x);
720     real    cosl(real x);
721 
722     double  sin(double x);
723     float   sinf(float x);
724     real    sinl(real x);
725 
726     double  tan(double x);
727     float   tanf(float x);
728     real    tanl(real x);
729 
730     double  acosh(double x);
731     float   acoshf(float x);
732     real    acoshl(real x);
733 
734     double  asinh(double x);
735     float   asinhf(float x);
736     real    asinhl(real x);
737 
738     double  atanh(double x);
739     float   atanhf(float x);
740     real    atanhl(real x);
741 
742     double  cosh(double x);
743     float   coshf(float x);
744     real    coshl(real x);
745 
746     double  sinh(double x);
747     float   sinhf(float x);
748     real    sinhl(real x);
749 
750     double  tanh(double x);
751     float   tanhf(float x);
752     real    tanhl(real x);
753 
754     double  exp(double x);
755     float   expf(float x);
756     real    expl(real x);
757 
758     double  exp2(double x);
759     float   exp2f(float x);
760     real    exp2l(real x);
761 
762     double  expm1(double x);
763     float   expm1f(float x);
764     real    expm1l(real x);
765 
766     double  frexp(double value, int* exp);
767     float   frexpf(float value, int* exp);
768     real    frexpl(real value, int* exp);
769 
770     int     ilogb(double x);
771     int     ilogbf(float x);
772     int     ilogbl(real x);
773 
774     double  ldexp(double x, int exp);
775     float   ldexpf(float x, int exp);
776     real    ldexpl(real x, int exp);
777 
778     double  log(double x);
779     float   logf(float x);
780     real    logl(real x);
781 
782     double  log10(double x);
783     float   log10f(float x);
784     real    log10l(real x);
785 
786     double  log1p(double x);
787     float   log1pf(float x);
788     real    log1pl(real x);
789 
790     double  log2(double x);
791     float   log2f(float x);
792     real    log2l(real x);
793 
794     double  logb(double x);
795     float   logbf(float x);
796     real    logbl(real x);
797 
798     double  modf(double value, double* iptr);
799     float   modff(float value, float* iptr);
800     real    modfl(real value, real *iptr);
801 
802     double  scalbn(double x, int n);
803     float   scalbnf(float x, int n);
804     real    scalbnl(real x, int n);
805 
806     double  scalbln(double x, c_long n);
807     float   scalblnf(float x, c_long n);
808     real    scalblnl(real x, c_long n);
809 
810     double  cbrt(double x);
811     float   cbrtf(float x);
812     real    cbrtl(real x);
813 
814     double  fabs(double x);
815     float   fabsf(float x);
816     real    fabsl(real x);
817 
818     double  hypot(double x, double y);
819     float   hypotf(float x, float y);
820     real    hypotl(real x, real y);
821 
822     double  pow(double x, double y);
823     float   powf(float x, float y);
824     real    powl(real x, real y);
825 
826     double  sqrt(double x);
827     float   sqrtf(float x);
828     real    sqrtl(real x);
829 
830     double  erf(double x);
831     float   erff(float x);
832     real    erfl(real x);
833 
834     double  erfc(double x);
835     float   erfcf(float x);
836     real    erfcl(real x);
837 
838     double  lgamma(double x);
839     float   lgammaf(float x);
840     real    lgammal(real x);
841 
842     double  tgamma(double x);
843     float   tgammaf(float x);
844     real    tgammal(real x);
845 
846     double  ceil(double x);
847     float   ceilf(float x);
848     real    ceill(real x);
849 
850     double  floor(double x);
851     float   floorf(float x);
852     real    floorl(real x);
853 
854     double  nearbyint(double x);
855     float   nearbyintf(float x);
856     real    nearbyintl(real x);
857 
858     double  rint(double x);
859     float   rintf(float x);
860     real    rintl(real x);
861 
862     c_long  lrint(double x);
863     c_long  lrintf(float x);
864     c_long  lrintl(real x);
865 
866     long    llrint(double x);
867     long    llrintf(float x);
868     long    llrintl(real x);
869 
870     double  round(double x);
871     float   roundf(float x);
872     real    roundl(real x);
873 
874     c_long  lround(double x);
875     c_long  lroundf(float x);
876     c_long  lroundl(real x);
877 
878     long    llround(double x);
879     long    llroundf(float x);
880     long    llroundl(real x);
881 
882     double  trunc(double x);
883     float   truncf(float x);
884     real    truncl(real x);
885 
886     double  fmod(double x, double y);
887     float   fmodf(float x, float y);
888     real    fmodl(real x, real y);
889 
890     double  remainder(double x, double y);
891     float   remainderf(float x, float y);
892     real    remainderl(real x, real y);
893 
894     double  remquo(double x, double y, int* quo);
895     float   remquof(float x, float y, int* quo);
896     real    remquol(real x, real y, int* quo);
897 
898     double  copysign(double x, double y);
899     float   copysignf(float x, float y);
900     real    copysignl(real x, real y);
901 
902     double  nan(char* tagp);
903     float   nanf(char* tagp);
904     real    nanl(char* tagp);
905 
906     double  nextafter(double x, double y);
907     float   nextafterf(float x, float y);
908     real    nextafterl(real x, real y);
909 
910     double  nexttoward(double x, real y);
911     float   nexttowardf(float x, real y);
912     real    nexttowardl(real x, real y);
913 
914     double  fdim(double x, double y);
915     float   fdimf(float x, float y);
916     real    fdiml(real x, real y);
917 
918     double  fmax(double x, double y);
919     float   fmaxf(float x, float y);
920     real    fmaxl(real x, real y);
921 
922     double  fmin(double x, double y);
923     float   fminf(float x, float y);
924     real    fminl(real x, real y);
925 
926     double  fma(double x, double y, double z);
927     float   fmaf(float x, float y, float z);
928     real    fmal(real x, real y, real z);
929 }

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