summaryrefslogtreecommitdiff
path: root/libm/float_wrappers.c
blob: 9e8256780b7be53fde00864a3b6416cbb4420002 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
/* vi: set sw=4 ts=4: */
/*
 * Wrapper functions implementing all the float math functions
 * defined by SuSv3 by actually calling the double version of
 * each function and then casting the result back to a float
 * to return to the user.
 *
 * Copyright (C) 2005 by Erik Andersen <andersen@uclibc.org>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Library General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "math.h"

/* For the time being, do _NOT_ implement these functions
 * that are defined by SuSv3 */
#if 0
float       exp2f(float);
float       fmaf(float, float, float);
float       fmaxf(float, float);
float       fminf(float, float);
float       fdimf(float, float);
long long   llrintf(float);
long long   llroundf(float);
long        lroundf(float);
float       log2f(float);
long        lrintf(float);
float       nexttowardf(float, long double);
float       remquof(float, float, int *);
float       roundf(float);
float       scalblnf(float, long);
float       truncf(float);
float       tgammaf(float);
#endif

/* Implement the following, as defined by SuSv3 */
#if 0
float       acosf(float);
float       acoshf(float);
float       asinf(float);
float       asinhf(float);
float       atan2f(float, float);
float       atanf(float);
float       atanhf(float);
float       cbrtf(float);
float       ceilf(float);
float       copysignf(float, float);
float       cosf(float);
float       coshf(float);
float       erfcf(float);
float       erff(float);
float       expf(float);
float       expm1f(float);
float       fabsf(float);
float       floorf(float);
float       fmodf(float, float);
float       frexpf(float value, int *);
float       hypotf(float, float);
int         ilogbf(float);
float       ldexpf(float, int);
float       lgammaf(float);
float       log10f(float);
float       log1pf(float);
float       logbf(float);
float       logf(float);
float       modff(float, float *);
float       nearbyintf(float);
float       nextafterf(float, float);
float       powf(float, float);
float       remainderf(float, float);
float       rintf(float);
float       scalbnf(float, int);
float       sinf(float);
float       sinhf(float);
float       sqrtf(float);
float       tanf(float);
float       tanhf(float);
#endif

#ifdef L_acosf
float acosf (float x)
{
	return (float) acos( (double)x );
}
#endif


#ifdef L_acoshf
float acoshf (float x)
{
	return (float) acosh( (double)x );
}
#endif


#ifdef L_asinf
float asinf (float x)
{
	return (float) asin( (double)x );
}
#endif


#ifdef L_asinhf
float asinhf (float x)
{
	return (float) asinh( (double)x );
}
#endif


#ifdef L_atan2f
float atan2f (float x, float y)
{
	return (float) atan2( (double)x, (double)y );
}
#endif


#ifdef L_atanf
float atanf (float x)
{
	return (float) atan( (double)x );
}
#endif


#ifdef L_atanhf
float atanhf (float x)
{
	return (float) atanh( (double)x );
}
#endif


#ifdef L_cbrtf
float cbrtf (float x)
{
	return (float) cbrt( (double)x );
}
#endif


#ifdef L_ceilf
float ceilf (float x)
{
	return (float) ceil( (double)x );
}
#endif


#ifdef L_copysignf
float copysignf (float x, float y)
{
	return (float) copysign( (double)x, (double)y );
}
#endif


#ifdef L_cosf
float cosf (float x)
{
	return (float) cos( (double)x );
}
#endif


#ifdef L_coshf
float coshf (float x)
{
	return (float) cosh( (double)x );
}
#endif


#ifdef L_erfcf
float erfcf (float x)
{
	return (float) erfc( (double)x );
}
#endif


#ifdef L_erff
float erff (float x)
{
	return (float) erf( (double)x );
}
#endif


#if 0
#ifdef L_exp2f
float exp2f (float x)
{
	return (float) exp2( (double)x );
}
#endif
#endif


#ifdef L_expf
float expf (float x)
{
	return (float) exp( (double)x );
}
#endif


#ifdef L_expm1f
float expm1f (float x)
{
	return (float) expm1( (double)x );
}
#endif


#ifdef L_fabsf
float fabsf (float x)
{
	return (float) fabs( (double)x );
}
#endif


#if 0
#ifdef L_fdimf
float fdimf (float x, float y)
{
	return (float) fdim( (double)x, (double)y );
}
#endif
#endif


#ifdef L_floorf
float floorf (float x)
{
	return (float) floor( (double)x );
}
#endif


#if 0
#ifdef L_fmaf
float fmaf (float x, float y, float z)
{
	return (float) fma( (double)x, (double)y, (double)z );
}
#endif


#ifdef L_fmaxf
float fmaxf (float x, float y)
{
	return (float) fmax( (double)x, (double)y );
}
#endif


#ifdef L_fminf
float fminf (float x, float y)
{
	return (float) fmin( (double)x, (double)y );
}
#endif
#endif


#ifdef L_fmodf
float fmodf (float x, float y)
{
	return (float) fmod( (double)x, (double)y );
}
#endif


#ifdef L_frexpf
float frexpf (float x, int *exp)
{
	return (float) frexp( (double)x, exp );
}
#endif


#ifdef L_hypotf
float hypotf (float x, float y)
{
	return (float) hypot( (double)x, (double)y );
}
#endif


#ifdef L_ilogbf
int ilogbf (float x)
{
	return (float) ilogb( (double)x );
}
#endif


#ifdef L_ldexpf
float ldexpf (float x, int exp)
{
	return (float) ldexp( (double)x, exp );
}
#endif


#ifdef L_lgammaf
float lgammaf (float x)
{
	return (float) lgamma( (double)x );
}
#endif


#if 0
#ifdef L_llrintf
long long llrintf (float x)
{
	return (float) llrint( (double)x );
}
#endif


#ifdef L_llroundf
long long llroundf (float x)
{
	return (float) llround( (double)x );
}
#endif
#endif

#ifdef L_log10f
float log10f (float x)
{
	return (float) log10( (double)x );
}
#endif


#ifdef L_log1pf
float log1pf (float x)
{
	return (float) log1p( (double)x );
}
#endif


#if 0
#ifdef L_log2f
float log2f (float x)
{
	return (float) log2( (double)x );
}
#endif
#endif


#ifdef L_logbf
float logbf (float x)
{
	return (float) logb( (double)x );
}
#endif


#ifdef L_logf
float logf (float x)
{
	return (float) log( (double)x );
}
#endif


#if 0
#ifdef L_lrintf
long lrintf (float x)
{
	return (float) lrint( (double)x );
}
#endif


#ifdef L_lroundf
long lroundf (float x)
{
	return (float) lround( (double)x );
}
#endif
#endif


#ifdef L_modff
float modff (float x, float *iptr)
{
	double y, result;
	result = modf ( x, &y );
	*iptr = (float)y;
	return (float) result;

}
#endif


#if 0
#ifdef L_nearbyintf
float nearbyintf (float x)
{
	return (float) nearbyint( (double)x );
}
#endif
#endif


#ifdef L_nextafterf
float nextafterf (float x, float y)
{
	return (float) nextafter( (double)x, (double)y );
}
#endif


#if 0
#ifdef L_nexttowardf
float nexttowardf (float x, long double y)
{
	return (float) nexttoward( (double)x, (double)y );
}
#endif
#endif

#ifdef L_powf
float powf (float x, float y)
{
	return (float) pow( (double)x, (double)y );
}
#endif


#ifdef L_remainderf
float remainderf (float x, float y)
{
	return (float) remainder( (double)x, (double)y );
}
#endif


#if 0
#ifdef L_remquof
float remquof (float x, float y, int *quo)
{
	return (float) remquo( (double)x, (double)y, quo );
}
#endif
#endif


#ifdef L_rintf
float rintf (float x)
{
	return (float) rint( (double)x );
}
#endif


#if 0
#ifdef L_roundf
float roundf (float x)
{
	return (float) round( (double)x );
}
#endif


#ifdef L_scalblnf
float scalblnf (float x, long exp)
{
	return (float) scalbln( (double)x, exp );
}
#endif
#endif


#ifdef L_scalbnf
float scalbnf (float x, int exp)
{
	return (float) scalbn( (double)x, exp );
}
#endif


#ifdef L_sinf
float sinf (float x)
{
	return (float) sin( (double)x );
}
#endif


#ifdef L_sinhf
float sinhf (float x)
{
	return (float) sinh( (double)x );
}
#endif


#ifdef L_sqrtf
float sqrtf (float x)
{
	return (float) sqrt( (double)x );
}
#endif


#ifdef L_tanf
float tanf (float x)
{
	return (float) tan( (double)x );
}
#endif


#ifdef L_tanhf
float tanhf (float x)
{
	return (float) tanh( (double)x );
}
#endif


#if 0
#ifdef L_tgammaf
float tgammaf (float x)
{
	return (float) tgamma( (double)x );
}
#endif


#ifdef L_truncf
float truncf (float x)
{
	return (float) trunc( (double)x );
}
#endif
#endif