blob: 8e0abdbb897abdd4e0fb5b0cfd1ee258ac888b33 [file] [log] [blame]
Elliott Hughesa0ee0782013-01-30 19:06:37 -08001/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define _DECLARE_C99_LDBL_MATH 1
18
19#include <gtest/gtest.h>
20
21#include <fenv.h>
22#include <limits.h>
23#include <math.h>
24#include <stdint.h>
25
26float float_subnormal() {
27 union {
28 float f;
29 uint32_t i;
30 } u;
31 u.i = 0x007fffff;
32 return u.f;
33}
34
35double double_subnormal() {
36 union {
37 double d;
38 uint64_t i;
39 } u;
40 u.i = 0x000fffffffffffffL;
41 return u.d;
42}
43
44TEST(math, fpclassify) {
45 ASSERT_EQ(FP_INFINITE, fpclassify(INFINITY));
46 ASSERT_EQ(FP_INFINITE, fpclassify(HUGE_VALF));
47 ASSERT_EQ(FP_INFINITE, fpclassify(HUGE_VAL));
48
49 ASSERT_EQ(FP_NAN, fpclassify(nanf("")));
50 ASSERT_EQ(FP_NAN, fpclassify(nan("")));
51
52 ASSERT_EQ(FP_NORMAL, fpclassify(1.0f));
53 ASSERT_EQ(FP_NORMAL, fpclassify(1.0));
54
55 ASSERT_EQ(FP_SUBNORMAL, fpclassify(float_subnormal()));
56 ASSERT_EQ(FP_SUBNORMAL, fpclassify(double_subnormal()));
57
58 ASSERT_EQ(FP_ZERO, fpclassify(0.0f));
59 ASSERT_EQ(FP_ZERO, fpclassify(0.0));
60}
61
62/* TODO: stlport breaks the isfinite macro
63TEST(math, isfinite) {
64 ASSERT_TRUE(isfinite(123.0f));
65 ASSERT_TRUE(isfinite(123.0));
66 ASSERT_FALSE(isfinite(HUGE_VALF));
67 ASSERT_FALSE(isfinite(HUGE_VAL));
68}
69*/
70
71TEST(math, isinf) {
72 ASSERT_FALSE(isinf(123.0f));
73 ASSERT_FALSE(isinf(123.0));
74 ASSERT_TRUE(isinf(HUGE_VALF));
75 ASSERT_TRUE(isinf(HUGE_VAL));
76}
77
78TEST(math, isnan) {
79 ASSERT_FALSE(isnan(123.0f));
80 ASSERT_FALSE(isnan(123.0));
81 ASSERT_TRUE(isnan(nanf("")));
82 ASSERT_TRUE(isnan(nan("")));
83}
84
85TEST(math, isnormal) {
86 ASSERT_TRUE(isnormal(123.0f));
87 ASSERT_TRUE(isnormal(123.0));
88 ASSERT_FALSE(isnormal(float_subnormal()));
89 ASSERT_FALSE(isnormal(double_subnormal()));
90}
91
92// TODO: isgreater, isgreaterequals, isless, islessequal, islessgreater, isunordered
93
94/* TODO: stlport breaks the signbit macro
95TEST(math, signbit) {
96 ASSERT_EQ(0, signbit(0.0f));
97 ASSERT_EQ(0, signbit(0.0));
98
99 ASSERT_EQ(0, signbit(1.0f));
100 ASSERT_EQ(0, signbit(1.0));
101
102 ASSERT_NE(0, signbit(-1.0f));
103 ASSERT_NE(0, signbit(-1.0));
104}
105*/
106
107#if defined(__BIONIC__)
108TEST(math, __fpclassifyd) {
109 ASSERT_EQ(FP_INFINITE, __fpclassifyd(HUGE_VAL));
110 ASSERT_EQ(FP_NAN, __fpclassifyd(nan("")));
111 ASSERT_EQ(FP_NORMAL, __fpclassifyd(1.0));
112 ASSERT_EQ(FP_SUBNORMAL, __fpclassifyd(double_subnormal()));
113 ASSERT_EQ(FP_ZERO, __fpclassifyd(0.0));
114}
115#endif
116
117#if defined(__BIONIC__)
118TEST(math, __fpclassifyf) {
119 ASSERT_EQ(FP_INFINITE, __fpclassifyf(HUGE_VALF));
120 ASSERT_EQ(FP_NAN, __fpclassifyf(nanf("")));
121 ASSERT_EQ(FP_NORMAL, __fpclassifyf(1.0f));
122 ASSERT_EQ(FP_SUBNORMAL, __fpclassifyf(float_subnormal()));
123 ASSERT_EQ(FP_ZERO, __fpclassifyf(0.0f));
124}
125#endif
126
127#if defined(__BIONIC__)
128TEST(math, __fpclassifyl) {
129 EXPECT_EQ(FP_INFINITE, __fpclassifyl(HUGE_VALL));
130 EXPECT_EQ(FP_NAN, __fpclassifyl(nanl("")));
131 EXPECT_EQ(FP_NORMAL, __fpclassifyl(1.0));
132 EXPECT_EQ(FP_SUBNORMAL, __fpclassifyl(double_subnormal()));
133 EXPECT_EQ(FP_ZERO, __fpclassifyl(0.0));
134}
135#endif
136
137TEST(math, finitef) {
138 ASSERT_TRUE(finitef(123.0f));
139 ASSERT_FALSE(finitef(HUGE_VALF));
140}
141
142#if defined(__BIONIC__)
143TEST(math, __isfinite) {
144 ASSERT_TRUE(__isfinite(123.0));
145 ASSERT_FALSE(__isfinite(HUGE_VAL));
146}
147#endif
148
149#if defined(__BIONIC__)
150TEST(math, __isfinitef) {
151 ASSERT_TRUE(__isfinitef(123.0f));
152 ASSERT_FALSE(__isfinitef(HUGE_VALF));
153}
154#endif
155
156#if defined(__BIONIC__)
157TEST(math, __isfinitel) {
158 ASSERT_TRUE(__isfinitel(123.0f));
159 ASSERT_FALSE(__isfinitel(HUGE_VALL));
160}
161#endif
162
163TEST(math, finite) {
164 ASSERT_TRUE(finite(123.0));
165 ASSERT_FALSE(finite(HUGE_VAL));
166}
167
168TEST(math, __isinff) {
169 ASSERT_FALSE(__isinff(123.0f));
170 ASSERT_TRUE(__isinff(HUGE_VALF));
171}
172
173TEST(math, __isinfl) {
174 ASSERT_FALSE(__isinfl(123.0));
175 ASSERT_TRUE(__isinfl(HUGE_VALL));
176}
177
178TEST(math, __isnanf) {
179 ASSERT_FALSE(__isnanf(123.0f));
180 ASSERT_TRUE(__isnanf(nanf("")));
181}
182
183TEST(math, __isnanl) {
184 ASSERT_FALSE(__isnanl(123.0));
185 ASSERT_TRUE(__isnanl(nanl("")));
186}
187
188TEST(math, isnanf) {
189 ASSERT_FALSE(isnanf(123.0f));
190 ASSERT_TRUE(isnanf(nanf("")));
191}
192
193#if defined(__BIONIC__)
194TEST(math, __isnormal) {
195 ASSERT_TRUE(__isnormal(123.0));
196 ASSERT_FALSE(__isnormal(double_subnormal()));
197}
198#endif
199
200#if defined(__BIONIC__)
201TEST(math, __isnormalf) {
202 ASSERT_TRUE(__isnormalf(123.0f));
203 ASSERT_FALSE(__isnormalf(float_subnormal()));
204}
205#endif
206
207#if defined(__BIONIC__)
208TEST(math, __isnormall) {
209 ASSERT_TRUE(__isnormall(123.0));
210 ASSERT_FALSE(__isnormall(double_subnormal()));
211}
212#endif
213
214TEST(math, __signbit) {
215 ASSERT_EQ(0, __signbit(0.0));
216 ASSERT_EQ(0, __signbit(1.0));
217 ASSERT_NE(0, __signbit(-1.0));
218}
219
220TEST(math, __signbitf) {
221 ASSERT_EQ(0, __signbitf(0.0f));
222 ASSERT_EQ(0, __signbitf(1.0f));
223 ASSERT_NE(0, __signbitf(-1.0f));
224}
225
226TEST(math, __signbitl) {
227 ASSERT_EQ(0, __signbitl(0.0));
228 ASSERT_EQ(0, __signbitl(1.0));
229 ASSERT_NE(0, __signbitl(-1.0));
230}
231
232TEST(math, acos) {
233 ASSERT_FLOAT_EQ(M_PI/2.0, acos(0.0));
234}
235
236TEST(math, acosf) {
237 ASSERT_FLOAT_EQ(static_cast<float>(M_PI)/2.0f, acosf(0.0f));
238}
239
240TEST(math, acosl) {
241 ASSERT_FLOAT_EQ(M_PI/2.0, acosl(0.0));
242}
243
244TEST(math, asin) {
245 ASSERT_FLOAT_EQ(0.0, asin(0.0));
246}
247
248TEST(math, asinf) {
249 ASSERT_FLOAT_EQ(0.0f, asinf(0.0f));
250}
251
252TEST(math, asinl) {
253 ASSERT_FLOAT_EQ(0.0, asinl(0.0));
254}
255
256TEST(math, atan) {
257 ASSERT_FLOAT_EQ(0.0, atan(0.0));
258}
259
260TEST(math, atanf) {
261 ASSERT_FLOAT_EQ(0.0f, atanf(0.0f));
262}
263
264TEST(math, atanl) {
265 ASSERT_FLOAT_EQ(0.0, atanl(0.0));
266}
267
268TEST(math, atan2) {
269 ASSERT_FLOAT_EQ(0.0, atan2(0.0, 0.0));
270}
271
272TEST(math, atan2f) {
273 ASSERT_FLOAT_EQ(0.0f, atan2f(0.0f, 0.0f));
274}
275
276TEST(math, atan2l) {
277 ASSERT_FLOAT_EQ(0.0, atan2l(0.0, 0.0));
278}
279
280TEST(math, cos) {
281 ASSERT_FLOAT_EQ(1.0, cos(0.0));
282}
283
284TEST(math, cosf) {
285 ASSERT_FLOAT_EQ(1.0f, cosf(0.0f));
286}
287
288TEST(math, cosl) {
289 ASSERT_FLOAT_EQ(1.0, cosl(0.0));
290}
291
292TEST(math, sin) {
293 ASSERT_FLOAT_EQ(0.0, sin(0.0));
294}
295
296TEST(math, sinf) {
297 ASSERT_FLOAT_EQ(0.0f, sinf(0.0f));
298}
299
300TEST(math, sinl) {
301 ASSERT_FLOAT_EQ(0.0, sinl(0.0));
302}
303
304TEST(math, tan) {
305 ASSERT_FLOAT_EQ(0.0, tan(0.0));
306}
307
308TEST(math, tanf) {
309 ASSERT_FLOAT_EQ(0.0f, tanf(0.0f));
310}
311
312TEST(math, tanl) {
313 ASSERT_FLOAT_EQ(0.0, tanl(0.0));
314}
315
316TEST(math, acosh) {
317 ASSERT_FLOAT_EQ(0.0, acosh(1.0));
318}
319
320TEST(math, acoshf) {
321 ASSERT_FLOAT_EQ(0.0f, acoshf(1.0f));
322}
323
324TEST(math, acoshl) {
325 ASSERT_FLOAT_EQ(0.0, acoshl(1.0));
326}
327
328TEST(math, asinh) {
329 ASSERT_FLOAT_EQ(0.0, asinh(0.0));
330}
331
332TEST(math, asinhf) {
333 ASSERT_FLOAT_EQ(0.0f, asinhf(0.0f));
334}
335
336TEST(math, asinhl) {
337 ASSERT_FLOAT_EQ(0.0, asinhl(0.0));
338}
339
340TEST(math, atanh) {
341 ASSERT_FLOAT_EQ(0.0, atanh(0.0));
342}
343
344TEST(math, atanhf) {
345 ASSERT_FLOAT_EQ(0.0f, atanhf(0.0f));
346}
347
348TEST(math, atanhl) {
349 ASSERT_FLOAT_EQ(0.0, atanhl(0.0));
350}
351
352TEST(math, cosh) {
353 ASSERT_FLOAT_EQ(1.0, cosh(0.0));
354}
355
356TEST(math, coshf) {
357 ASSERT_FLOAT_EQ(1.0f, coshf(0.0f));
358}
359
360TEST(math, coshl) {
361 ASSERT_FLOAT_EQ(1.0, coshl(0.0));
362}
363
364TEST(math, sinh) {
365 ASSERT_FLOAT_EQ(0.0, sinh(0.0));
366}
367
368TEST(math, sinhf) {
369 ASSERT_FLOAT_EQ(0.0f, sinhf(0.0f));
370}
371
372TEST(math, sinhl) {
373 ASSERT_FLOAT_EQ(0.0, sinhl(0.0));
374}
375
376TEST(math, tanh) {
377 ASSERT_FLOAT_EQ(0.0, tanh(0.0));
378}
379
380TEST(math, tanhf) {
381 ASSERT_FLOAT_EQ(0.0f, tanhf(0.0f));
382}
383
384TEST(math, tanhl) {
385 ASSERT_FLOAT_EQ(0.0, tanhl(0.0));
386}
387
388TEST(math, log) {
389 ASSERT_FLOAT_EQ(1.0, log(M_E));
390}
391
392TEST(math, logf) {
393 ASSERT_FLOAT_EQ(1.0f, logf(static_cast<float>(M_E)));
394}
395
396TEST(math, logl) {
397 ASSERT_FLOAT_EQ(1.0, logl(M_E));
398}
399
400TEST(math, log2) {
401 ASSERT_FLOAT_EQ(12.0, log2(4096.0));
402}
403
404TEST(math, log2f) {
405 ASSERT_FLOAT_EQ(12.0f, log2f(4096.0f));
406}
407
408TEST(math, log2l) {
409 ASSERT_FLOAT_EQ(12.0, log2l(4096.0));
410}
411
412TEST(math, log10) {
413 ASSERT_FLOAT_EQ(3.0, log10(1000.0));
414}
415
416TEST(math, log10f) {
417 ASSERT_FLOAT_EQ(3.0f, log10f(1000.0f));
418}
419
420TEST(math, log10l) {
421 ASSERT_FLOAT_EQ(3.0, log10l(1000.0));
422}
423
424TEST(math, cbrt) {
425 ASSERT_FLOAT_EQ(3.0, cbrt(27.0));
426}
427
428TEST(math, cbrtf) {
429 ASSERT_FLOAT_EQ(3.0f, cbrtf(27.0f));
430}
431
432TEST(math, cbrtl) {
433 ASSERT_FLOAT_EQ(3.0, cbrtl(27.0));
434}
435
436TEST(math, sqrt) {
437 ASSERT_FLOAT_EQ(2.0, sqrt(4.0));
438}
439
440TEST(math, sqrtf) {
441 ASSERT_FLOAT_EQ(2.0f, sqrtf(4.0f));
442}
443
444TEST(math, sqrtl) {
445 ASSERT_FLOAT_EQ(2.0, sqrtl(4.0));
446}
447
448TEST(math, exp) {
449 ASSERT_FLOAT_EQ(1.0, exp(0.0));
450 ASSERT_FLOAT_EQ(M_E, exp(1.0));
451}
452
453TEST(math, expf) {
454 ASSERT_FLOAT_EQ(1.0f, expf(0.0f));
455 ASSERT_FLOAT_EQ(static_cast<float>(M_E), expf(1.0f));
456}
457
458TEST(math, expl) {
459 ASSERT_FLOAT_EQ(1.0, expl(0.0));
460 ASSERT_FLOAT_EQ(M_E, expl(1.0));
461}
462
463TEST(math, exp2) {
464 ASSERT_FLOAT_EQ(8.0, exp2(3.0));
465}
466
467TEST(math, exp2f) {
468 ASSERT_FLOAT_EQ(8.0f, exp2f(3.0f));
469}
470
471TEST(math, exp2l) {
472 ASSERT_FLOAT_EQ(8.0, exp2l(3.0));
473}
474
475TEST(math, expm1) {
476 ASSERT_FLOAT_EQ(M_E - 1.0, expm1(1.0));
477}
478
479TEST(math, expm1f) {
480 ASSERT_FLOAT_EQ(static_cast<float>(M_E) - 1.0f, expm1f(1.0f));
481}
482
483TEST(math, expm1l) {
484 ASSERT_FLOAT_EQ(M_E - 1.0, expm1l(1.0));
485}
486
487TEST(math, pow) {
488 ASSERT_FLOAT_EQ(8.0, pow(2.0, 3.0));
489}
490
491TEST(math, powf) {
492 ASSERT_FLOAT_EQ(8.0f, powf(2.0f, 3.0f));
493}
494
495TEST(math, powl) {
496 ASSERT_FLOAT_EQ(8.0, powl(2.0, 3.0));
497}
498
499TEST(math, ceil) {
500 ASSERT_FLOAT_EQ(1.0, ceil(0.9));
501}
502
503TEST(math, ceilf) {
504 ASSERT_FLOAT_EQ(1.0f, ceilf(0.9f));
505}
506
507TEST(math, ceill) {
508 ASSERT_FLOAT_EQ(1.0, ceill(0.9));
509}
510
511TEST(math, floor) {
512 ASSERT_FLOAT_EQ(1.0, floor(1.1));
513}
514
515TEST(math, floorf) {
516 ASSERT_FLOAT_EQ(1.0f, floorf(1.1f));
517}
518
519TEST(math, floorl) {
520 ASSERT_FLOAT_EQ(1.0, floorl(1.1));
521}
522
523TEST(math, fabs) {
524 ASSERT_FLOAT_EQ(1.0, fabs(-1.0));
525}
526
527TEST(math, fabsf) {
528 ASSERT_FLOAT_EQ(1.0f, fabsf(-1.0f));
529}
530
531TEST(math, fabsl) {
532 ASSERT_FLOAT_EQ(1.0, fabsl(-1.0));
533}
534
535TEST(math, ldexp) {
536 ASSERT_FLOAT_EQ(16.0, ldexp(2.0, 3.0));
537}
538
539TEST(math, ldexpf) {
540 ASSERT_FLOAT_EQ(16.0f, ldexpf(2.0f, 3.0f));
541}
542
543TEST(math, ldexpl) {
544 ASSERT_FLOAT_EQ(16.0, ldexpl(2.0, 3.0));
545}
546
547TEST(math, fmod) {
548 ASSERT_FLOAT_EQ(2.0, fmod(12.0, 10.0));
549}
550
551TEST(math, fmodf) {
552 ASSERT_FLOAT_EQ(2.0f, fmodf(12.0f, 10.0f));
553}
554
555TEST(math, fmodl) {
556 ASSERT_FLOAT_EQ(2.0, fmodl(12.0, 10.0));
557}
558
559TEST(math, remainder) {
560 ASSERT_FLOAT_EQ(2.0, remainder(12.0, 10.0));
561}
562
563TEST(math, remainderf) {
564 ASSERT_FLOAT_EQ(2.0f, remainderf(12.0f, 10.0f));
565}
566
567TEST(math, remainderl) {
568 ASSERT_FLOAT_EQ(2.0, remainderl(12.0, 10.0));
569}
570
571TEST(math, drem) {
572 ASSERT_FLOAT_EQ(2.0, drem(12.0, 10.0));
573}
574
575TEST(math, dremf) {
576 ASSERT_FLOAT_EQ(2.0f, dremf(12.0f, 10.0f));
577}
578
579TEST(math, fmax) {
580 ASSERT_FLOAT_EQ(12.0, fmax(12.0, 10.0));
581 ASSERT_FLOAT_EQ(12.0, fmax(12.0, nan("")));
582 ASSERT_FLOAT_EQ(12.0, fmax(nan(""), 12.0));
583}
584
585TEST(math, fmaxf) {
586 ASSERT_FLOAT_EQ(12.0f, fmaxf(12.0f, 10.0f));
587 ASSERT_FLOAT_EQ(12.0f, fmaxf(12.0f, nanf("")));
588 ASSERT_FLOAT_EQ(12.0f, fmaxf(nanf(""), 12.0f));
589}
590
591TEST(math, fmaxl) {
592 ASSERT_FLOAT_EQ(12.0, fmaxl(12.0, 10.0));
593 ASSERT_FLOAT_EQ(12.0, fmaxl(12.0, nanl("")));
594 ASSERT_FLOAT_EQ(12.0, fmaxl(nanl(""), 12.0));
595}
596
597TEST(math, fmin) {
598 ASSERT_FLOAT_EQ(10.0, fmin(12.0, 10.0));
599 ASSERT_FLOAT_EQ(12.0, fmin(12.0, nan("")));
600 ASSERT_FLOAT_EQ(12.0, fmin(nan(""), 12.0));
601}
602
603TEST(math, fminf) {
604 ASSERT_FLOAT_EQ(10.0f, fminf(12.0f, 10.0f));
605 ASSERT_FLOAT_EQ(12.0f, fminf(12.0f, nanf("")));
606 ASSERT_FLOAT_EQ(12.0f, fminf(nanf(""), 12.0f));
607}
608
609TEST(math, fminl) {
610 ASSERT_FLOAT_EQ(10.0, fminl(12.0, 10.0));
611 ASSERT_FLOAT_EQ(12.0, fminl(12.0, nan("")));
612 ASSERT_FLOAT_EQ(12.0, fminl(nan(""), 12.0));
613}
614
615TEST(math, fma) {
616 ASSERT_FLOAT_EQ(10.0, fma(2.0, 3.0, 4.0));
617}
618
619TEST(math, fmaf) {
620 ASSERT_FLOAT_EQ(10.0f, fmaf(2.0f, 3.0f, 4.0f));
621}
622
623TEST(math, fmal) {
624 ASSERT_FLOAT_EQ(10.0, fmal(2.0, 3.0, 4.0));
625}
626
627TEST(math, hypot) {
628 ASSERT_FLOAT_EQ(5.0, hypot(3.0, 4.0));
629}
630
631TEST(math, hypotf) {
632 ASSERT_FLOAT_EQ(5.0f, hypotf(3.0f, 4.0f));
633}
634
635TEST(math, hypotl) {
636 ASSERT_FLOAT_EQ(5.0, hypotl(3.0, 4.0));
637}
638
639TEST(math, erf) {
640 ASSERT_FLOAT_EQ(0.84270078, erf(1.0));
641}
642
643TEST(math, erff) {
644 ASSERT_FLOAT_EQ(0.84270078f, erff(1.0f));
645}
646
647TEST(math, erfl) {
648 ASSERT_FLOAT_EQ(0.84270078, erfl(1.0));
649}
650
651TEST(math, erfc) {
652 ASSERT_FLOAT_EQ(0.15729921, erfc(1.0));
653}
654
655TEST(math, erfcf) {
656 ASSERT_FLOAT_EQ(0.15729921f, erfcf(1.0f));
657}
658
659TEST(math, erfcl) {
660 ASSERT_FLOAT_EQ(0.15729921, erfcl(1.0));
661}
662
663TEST(math, lrint) {
664 fesetround(FE_UPWARD); // lrint/lrintf/lrintl obey the rounding mode.
665 ASSERT_EQ(1235, lrint(1234.01));
666 ASSERT_EQ(1235, lrintf(1234.01f));
667 ASSERT_EQ(1235, lrintl(1234.01));
668 fesetround(FE_TOWARDZERO); // lrint/lrintf/lrintl obey the rounding mode.
669 ASSERT_EQ(1234, lrint(1234.01));
670 ASSERT_EQ(1234, lrintf(1234.01f));
671 ASSERT_EQ(1234, lrintl(1234.01));
672
673 fesetround(FE_UPWARD); // llrint/llrintf/llrintl obey the rounding mode.
674 ASSERT_EQ(1235L, llrint(1234.01));
675 ASSERT_EQ(1235L, llrintf(1234.01f));
676 ASSERT_EQ(1235L, llrintl(1234.01));
677 fesetround(FE_TOWARDZERO); // llrint/llrintf/llrintl obey the rounding mode.
678 ASSERT_EQ(1234L, llrint(1234.01));
679 ASSERT_EQ(1234L, llrintf(1234.01f));
680 ASSERT_EQ(1234L, llrintl(1234.01));
681}
682
683TEST(math, rint) {
684 fesetround(FE_UPWARD); // rint/rintf/rintl obey the rounding mode.
685 feclearexcept(FE_ALL_EXCEPT); // rint/rintf/rintl do set the FE_INEXACT flag.
686 ASSERT_EQ(1234.0, rint(1234.0));
687 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) == 0);
688 ASSERT_EQ(1235.0, rint(1234.01));
689 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) != 0);
690
691 feclearexcept(FE_ALL_EXCEPT); // rint/rintf/rintl do set the FE_INEXACT flag.
692 ASSERT_EQ(1234.0f, rintf(1234.0f));
693 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) == 0);
694 ASSERT_EQ(1235.0f, rintf(1234.01f));
695 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) != 0);
696
697 feclearexcept(FE_ALL_EXCEPT); // rint/rintf/rintl do set the FE_INEXACT flag.
698 ASSERT_EQ(1234.0, rintl(1234.0));
699 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) == 0);
700 ASSERT_EQ(1235.0, rintl(1234.01));
701 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) != 0);
702
703 fesetround(FE_TOWARDZERO); // rint/rintf obey the rounding mode.
704 ASSERT_EQ(1234.0, rint(1234.01));
705 ASSERT_EQ(1234.0f, rintf(1234.01f));
706 ASSERT_EQ(1234.0, rintl(1234.01));
707}
708
709TEST(math, nearbyint) {
710 fesetround(FE_UPWARD); // nearbyint/nearbyintf/nearbyintl obey the rounding mode.
711 feclearexcept(FE_ALL_EXCEPT); // nearbyint/nearbyintf/nearbyintl don't set the FE_INEXACT flag.
712 ASSERT_EQ(1234.0, nearbyint(1234.0));
713 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) == 0);
714 ASSERT_EQ(1235.0, nearbyint(1234.01));
715 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) == 0);
716
717 feclearexcept(FE_ALL_EXCEPT);
718 ASSERT_EQ(1234.0f, nearbyintf(1234.0f));
719 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) == 0);
720 ASSERT_EQ(1235.0f, nearbyintf(1234.01f));
721 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) == 0);
722
723 feclearexcept(FE_ALL_EXCEPT); // nearbyint/nearbyintf/nearbyintl don't set the FE_INEXACT flag.
724 ASSERT_EQ(1234.0, nearbyintl(1234.0));
725 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) == 0);
726 ASSERT_EQ(1235.0, nearbyintl(1234.01));
727 ASSERT_TRUE((fetestexcept(FE_ALL_EXCEPT) & FE_INEXACT) == 0);
728
729 fesetround(FE_TOWARDZERO); // nearbyint/nearbyintf/nearbyintl obey the rounding mode.
730 ASSERT_EQ(1234.0, nearbyint(1234.01));
731 ASSERT_EQ(1234.0f, nearbyintf(1234.01f));
732 ASSERT_EQ(1234.0, nearbyintl(1234.01));
733}
734
735TEST(math, lround) {
736 fesetround(FE_UPWARD); // lround ignores the rounding mode.
737 ASSERT_EQ(1234, lround(1234.01));
738 ASSERT_EQ(1234, lroundf(1234.01f));
739 ASSERT_EQ(1234, lroundl(1234.01));
740}
741
742TEST(math, llround) {
743 fesetround(FE_UPWARD); // llround ignores the rounding mode.
744 ASSERT_EQ(1234L, llround(1234.01));
745 ASSERT_EQ(1234L, llroundf(1234.01f));
746 ASSERT_EQ(1234L, llroundl(1234.01));
747}
748
749TEST(math, ilogb) {
750 ASSERT_EQ(FP_ILOGB0, ilogb(0.0));
751 ASSERT_EQ(FP_ILOGBNAN, ilogb(nan("")));
752 ASSERT_EQ(INT_MAX, ilogb(HUGE_VAL));
753 ASSERT_EQ(0, ilogb(1.0));
754 ASSERT_EQ(3, ilogb(10.0));
755}
756
757TEST(math, ilogbf) {
758 ASSERT_EQ(FP_ILOGB0, ilogbf(0.0f));
759 ASSERT_EQ(FP_ILOGBNAN, ilogbf(nanf("")));
760 ASSERT_EQ(INT_MAX, ilogbf(HUGE_VALF));
761 ASSERT_EQ(0, ilogbf(1.0f));
762 ASSERT_EQ(3, ilogbf(10.0f));
763}
764
765TEST(math, ilogbl) {
766 ASSERT_EQ(FP_ILOGB0, ilogbl(0.0));
767 ASSERT_EQ(FP_ILOGBNAN, ilogbl(nanl("")));
768 ASSERT_EQ(INT_MAX, ilogbl(HUGE_VALL));
769 ASSERT_EQ(0, ilogbl(1.0));
770 ASSERT_EQ(3, ilogbl(10.0));
771}
772
773TEST(math, logb) {
774 ASSERT_EQ(-HUGE_VAL, logb(0.0));
775 ASSERT_TRUE(isnan(logb(nan(""))));
776 ASSERT_TRUE(isinf(logb(HUGE_VAL)));
777 ASSERT_EQ(0.0, logb(1.0));
778 ASSERT_EQ(3.0, logb(10.0));
779}
780
781TEST(math, logbf) {
782 ASSERT_EQ(-HUGE_VALF, logbf(0.0f));
783 ASSERT_TRUE(isnanf(logbf(nanf(""))));
784 ASSERT_TRUE(__isinff(logbf(HUGE_VALF)));
785 ASSERT_EQ(0.0f, logbf(1.0f));
786 ASSERT_EQ(3.0f, logbf(10.0f));
787}
788
789TEST(math, logbl) {
790 ASSERT_EQ(-HUGE_VAL, logbl(0.0));
791 ASSERT_TRUE(isnan(logbl(nanl(""))));
792 ASSERT_TRUE(isinf(logbl(HUGE_VALL)));
793 ASSERT_EQ(0.0, logbl(1.0));
794 ASSERT_EQ(3.0, logbl(10.0));
795}
796
797TEST(math, log1p) {
798 ASSERT_EQ(-HUGE_VAL, log1p(-1.0));
799 ASSERT_TRUE(isnan(log1p(nan(""))));
800 ASSERT_TRUE(isinf(log1p(HUGE_VAL)));
801 ASSERT_FLOAT_EQ(1.0, log1p(M_E - 1.0));
802}
803
804TEST(math, log1pf) {
805 ASSERT_EQ(-HUGE_VALF, log1pf(-1.0f));
806 ASSERT_TRUE(isnanf(log1pf(nanf(""))));
807 ASSERT_TRUE(__isinff(log1pf(HUGE_VALF)));
808 ASSERT_FLOAT_EQ(1.0f, log1pf(static_cast<float>(M_E) - 1.0f));
809}
810
811TEST(math, log1pl) {
812 ASSERT_EQ(-HUGE_VALL, log1pl(-1.0));
813 ASSERT_TRUE(isnan(log1pl(nanl(""))));
814 ASSERT_TRUE(isinf(log1pl(HUGE_VALL)));
815 ASSERT_FLOAT_EQ(1.0, log1pl(M_E - 1.0));
816}
817
818TEST(math, fdim) {
819 ASSERT_FLOAT_EQ(0.0, fdim(1.0, 1.0));
820 ASSERT_FLOAT_EQ(1.0, fdim(2.0, 1.0));
821 ASSERT_FLOAT_EQ(0.0, fdim(1.0, 2.0));
822}
823
824TEST(math, fdimf) {
825 ASSERT_FLOAT_EQ(0.0f, fdimf(1.0f, 1.0f));
826 ASSERT_FLOAT_EQ(1.0f, fdimf(2.0f, 1.0f));
827 ASSERT_FLOAT_EQ(0.0f, fdimf(1.0f, 2.0f));
828}
829
830TEST(math, fdiml) {
831 ASSERT_FLOAT_EQ(0.0, fdiml(1.0, 1.0));
832 ASSERT_FLOAT_EQ(1.0, fdiml(2.0, 1.0));
833 ASSERT_FLOAT_EQ(0.0, fdiml(1.0, 2.0));
834}
835
836TEST(math, round) {
837 fesetround(FE_TOWARDZERO); // round ignores the rounding mode and always rounds away from zero.
838 ASSERT_FLOAT_EQ(1.0, round(0.5));
839 ASSERT_FLOAT_EQ(-1.0, round(-0.5));
840 ASSERT_FLOAT_EQ(0.0, round(0.0));
841 ASSERT_FLOAT_EQ(-0.0, round(-0.0));
842 ASSERT_TRUE(isnan(round(nan(""))));
843 ASSERT_FLOAT_EQ(HUGE_VAL, round(HUGE_VAL));
844}
845
846TEST(math, roundf) {
847 fesetround(FE_TOWARDZERO); // roundf ignores the rounding mode and always rounds away from zero.
848 ASSERT_FLOAT_EQ(1.0f, roundf(0.5f));
849 ASSERT_FLOAT_EQ(-1.0f, roundf(-0.5f));
850 ASSERT_FLOAT_EQ(0.0f, roundf(0.0f));
851 ASSERT_FLOAT_EQ(-0.0f, roundf(-0.0f));
852 ASSERT_TRUE(isnanf(roundf(nanf(""))));
853 ASSERT_FLOAT_EQ(HUGE_VALF, roundf(HUGE_VALF));
854}
855
856TEST(math, roundl) {
857 fesetround(FE_TOWARDZERO); // roundl ignores the rounding mode and always rounds away from zero.
858 ASSERT_FLOAT_EQ(1.0, roundl(0.5));
859 ASSERT_FLOAT_EQ(-1.0, roundl(-0.5));
860 ASSERT_FLOAT_EQ(0.0, roundl(0.0));
861 ASSERT_FLOAT_EQ(-0.0, roundl(-0.0));
862 ASSERT_TRUE(isnan(roundl(nanl(""))));
863 ASSERT_FLOAT_EQ(HUGE_VALL, roundl(HUGE_VALL));
864}
865
866TEST(math, trunc) {
867 fesetround(FE_UPWARD); // trunc ignores the rounding mode and always rounds toward zero.
868 ASSERT_FLOAT_EQ(1.0, trunc(1.5));
869 ASSERT_FLOAT_EQ(-1.0, trunc(-1.5));
870 ASSERT_FLOAT_EQ(0.0, trunc(0.0));
871 ASSERT_FLOAT_EQ(-0.0, trunc(-0.0));
872 ASSERT_TRUE(isnan(trunc(nan(""))));
873 ASSERT_FLOAT_EQ(HUGE_VAL, trunc(HUGE_VAL));
874}
875
876TEST(math, truncf) {
877 fesetround(FE_UPWARD); // truncf ignores the rounding mode and always rounds toward zero.
878 ASSERT_FLOAT_EQ(1.0f, truncf(1.5f));
879 ASSERT_FLOAT_EQ(-1.0f, truncf(-1.5f));
880 ASSERT_FLOAT_EQ(0.0f, truncf(0.0f));
881 ASSERT_FLOAT_EQ(-0.0f, truncf(-0.0f));
882 ASSERT_TRUE(isnan(truncf(nanf(""))));
883 ASSERT_FLOAT_EQ(HUGE_VALF, truncf(HUGE_VALF));
884}
885
886TEST(math, truncl) {
887 fesetround(FE_UPWARD); // truncl ignores the rounding mode and always rounds toward zero.
888 ASSERT_FLOAT_EQ(1.0, truncl(1.5));
889 ASSERT_FLOAT_EQ(-1.0, truncl(-1.5));
890 ASSERT_FLOAT_EQ(0.0, truncl(0.0));
891 ASSERT_FLOAT_EQ(-0.0, truncl(-0.0));
892 ASSERT_TRUE(isnan(truncl(nan(""))));
893 ASSERT_FLOAT_EQ(HUGE_VALL, truncl(HUGE_VALL));
894}
895
896TEST(math, nextafter) {
897 ASSERT_FLOAT_EQ(0.0, nextafter(0.0, 0.0));
898 ASSERT_FLOAT_EQ(1.4012985e-45, nextafter(0.0, 1.0));
899 ASSERT_FLOAT_EQ(0.0, nextafter(0.0, -1.0));
900}
901
902TEST(math, nextafterf) {
903 ASSERT_FLOAT_EQ(0.0f, nextafterf(0.0f, 0.0f));
904 ASSERT_FLOAT_EQ(1.4012985e-45f, nextafterf(0.0f, 1.0f));
905 ASSERT_FLOAT_EQ(0.0f, nextafterf(0.0f, -1.0f));
906}
907
908TEST(math, nextafterl) {
909 ASSERT_FLOAT_EQ(0.0, nextafterl(0.0, 0.0));
910 ASSERT_FLOAT_EQ(1.4012985e-45, nextafterl(0.0, 1.0));
911 ASSERT_FLOAT_EQ(0.0, nextafterl(0.0, -1.0));
912}
913
914// TODO: nexttoward
915// TODO: nexttowardf
916// TODO: nexttowardl
917
918TEST(math, copysign) {
919 ASSERT_FLOAT_EQ(0.0, copysign(0.0, 1.0));
920 ASSERT_FLOAT_EQ(-0.0, copysign(0.0, -1.0));
921 ASSERT_FLOAT_EQ(2.0, copysign(2.0, 1.0));
922 ASSERT_FLOAT_EQ(-2.0, copysign(2.0, -1.0));
923}
924
925TEST(math, copysignf) {
926 ASSERT_FLOAT_EQ(0.0f, copysignf(0.0f, 1.0f));
927 ASSERT_FLOAT_EQ(-0.0f, copysignf(0.0f, -1.0f));
928 ASSERT_FLOAT_EQ(2.0f, copysignf(2.0f, 1.0f));
929 ASSERT_FLOAT_EQ(-2.0f, copysignf(2.0f, -1.0f));
930}
931
932TEST(math, copysignl) {
933 ASSERT_FLOAT_EQ(0.0f, copysignl(0.0, 1.0));
934 ASSERT_FLOAT_EQ(-0.0f, copysignl(0.0, -1.0));
935 ASSERT_FLOAT_EQ(2.0f, copysignl(2.0, 1.0));
936 ASSERT_FLOAT_EQ(-2.0f, copysignl(2.0, -1.0));
937}
938
939TEST(math, significand) {
940 ASSERT_FLOAT_EQ(0.0, significand(0.0));
941 ASSERT_FLOAT_EQ(1.2, significand(1.2));
942 ASSERT_FLOAT_EQ(1.5375, significand(12.3));
943}
944
945TEST(math, significandf) {
946 ASSERT_FLOAT_EQ(0.0f, significandf(0.0f));
947 ASSERT_FLOAT_EQ(1.2f, significandf(1.2f));
948 ASSERT_FLOAT_EQ(1.5375f, significandf(12.3f));
949}
950
951extern "C" long double significandl(long double); // BSD's <math.h> doesn't declare this.
952
953TEST(math, significandl) {
954 ASSERT_FLOAT_EQ(0.0, significandl(0.0));
955 ASSERT_FLOAT_EQ(1.2, significandl(1.2));
956 ASSERT_FLOAT_EQ(1.5375, significandl(12.3));
957}
958
959TEST(math, scalb) {
960 ASSERT_FLOAT_EQ(12.0, scalb(3.0, 2.0));
961}
962
963TEST(math, scalbf) {
964 ASSERT_FLOAT_EQ(12.0f, scalbf(3.0f, 2.0f));
965}
966
967TEST(math, scalbln) {
968 ASSERT_FLOAT_EQ(12.0, scalbln(3.0, 2L));
969}
970
971TEST(math, scalblnf) {
972 ASSERT_FLOAT_EQ(12.0f, scalblnf(3.0f, 2L));
973}
974
975TEST(math, scalblnl) {
976 ASSERT_FLOAT_EQ(12.0, scalblnl(3.0, 2L));
977}
978
979TEST(math, scalbn) {
980 ASSERT_FLOAT_EQ(12.0, scalbn(3.0, 2));
981}
982
983TEST(math, scalbnf) {
984 ASSERT_FLOAT_EQ(12.0f, scalbnf(3.0f, 2));
985}
986
987TEST(math, scalbnl) {
988 ASSERT_FLOAT_EQ(12.0, scalbnl(3.0, 2));
989}
990
991TEST(math, gamma) {
992 ASSERT_FLOAT_EQ(log(24.0), gamma(5.0));
993}
994
995TEST(math, gammaf) {
996 ASSERT_FLOAT_EQ(logf(24.0f), gammaf(5.0f));
997}
998
999#if defined(__BIONIC__)
1000TEST(math, gamma_r) {
1001 int sign;
1002 ASSERT_FLOAT_EQ(log(24.0), gamma_r(5.0, &sign));
1003 ASSERT_EQ(1, sign);
1004}
1005#endif
1006
1007#if defined(__BIONIC__)
1008TEST(math, gammaf_r) {
1009 int sign;
1010 ASSERT_FLOAT_EQ(logf(24.0f), gammaf_r(5.0f, &sign));
1011 ASSERT_EQ(1, sign);
1012}
1013#endif
1014
1015TEST(math, lgamma) {
1016 ASSERT_FLOAT_EQ(log(24.0), lgamma(5.0));
1017}
1018
1019TEST(math, lgammaf) {
1020 ASSERT_FLOAT_EQ(logf(24.0f), lgammaf(5.0f));
1021}
1022
1023TEST(math, lgammal) {
1024 ASSERT_FLOAT_EQ(logl(24.0), lgammal(5.0));
1025}
1026
1027TEST(math, lgamma_r) {
1028 int sign;
1029 ASSERT_FLOAT_EQ(log(24.0), lgamma_r(5.0, &sign));
1030 ASSERT_EQ(1, sign);
1031}
1032
1033TEST(math, lgammaf_r) {
1034 int sign;
1035 ASSERT_FLOAT_EQ(logf(24.0f), lgammaf_r(5.0f, &sign));
1036 ASSERT_EQ(1, sign);
1037}
1038
1039TEST(math, tgamma) {
1040 ASSERT_FLOAT_EQ(24.0, tgamma(5.0));
1041}
1042
1043TEST(math, tgammaf) {
1044 ASSERT_FLOAT_EQ(24.0f, tgammaf(5.0f));
1045}
1046
1047TEST(math, tgammal) {
1048 ASSERT_FLOAT_EQ(24.0, tgammal(5.0));
1049}
1050
1051TEST(math, j0) {
1052 ASSERT_FLOAT_EQ(1.0, j0(0.0));
1053 ASSERT_FLOAT_EQ(0.76519769, j0(1.0));
1054}
1055
1056TEST(math, j0f) {
1057 ASSERT_FLOAT_EQ(1.0f, j0f(0.0f));
1058 ASSERT_FLOAT_EQ(0.76519769f, j0f(1.0f));
1059}
1060
1061TEST(math, j1) {
1062 ASSERT_FLOAT_EQ(0.0, j1(0.0));
1063 ASSERT_FLOAT_EQ(0.44005057, j1(1.0));
1064}
1065
1066TEST(math, j1f) {
1067 ASSERT_FLOAT_EQ(0.0f, j1f(0.0f));
1068 ASSERT_FLOAT_EQ(0.44005057f, j1f(1.0f));
1069}
1070
1071TEST(math, jn) {
1072 ASSERT_FLOAT_EQ(0.0, jn(4, 0.0));
1073 ASSERT_FLOAT_EQ(0.0024766389, jn(4, 1.0));
1074}
1075
1076TEST(math, jnf) {
1077 ASSERT_FLOAT_EQ(0.0f, jnf(4, 0.0f));
1078 ASSERT_FLOAT_EQ(0.0024766389f, jnf(4, 1.0f));
1079}
1080
1081TEST(math, y0) {
1082 ASSERT_FLOAT_EQ(-HUGE_VAL, y0(0.0));
1083 ASSERT_FLOAT_EQ(0.088256963, y0(1.0));
1084}
1085
1086TEST(math, y0f) {
1087 ASSERT_FLOAT_EQ(-HUGE_VALF, y0f(0.0f));
1088 ASSERT_FLOAT_EQ(0.088256963f, y0f(1.0f));
1089}
1090
1091TEST(math, y1) {
1092 ASSERT_FLOAT_EQ(-HUGE_VAL, y1(0.0));
1093 ASSERT_FLOAT_EQ(-0.78121281, y1(1.0));
1094}
1095
1096TEST(math, y1f) {
1097 ASSERT_FLOAT_EQ(-HUGE_VALF, y1f(0.0f));
1098 ASSERT_FLOAT_EQ(-0.78121281f, y1f(1.0f));
1099}
1100
1101TEST(math, yn) {
1102 ASSERT_FLOAT_EQ(-HUGE_VAL, yn(4, 0.0));
1103 ASSERT_FLOAT_EQ(-33.278423, yn(4, 1.0));
1104}
1105
1106TEST(math, ynf) {
1107 ASSERT_FLOAT_EQ(-HUGE_VALF, ynf(4, 0.0f));
1108 ASSERT_FLOAT_EQ(-33.278423f, ynf(4, 1.0f));
1109}
1110
1111TEST(math, frexp) {
1112 int exp;
1113 double dr = frexp(1024.0, &exp);
1114 ASSERT_FLOAT_EQ(1024.0, scalbn(dr, exp));
1115}
1116
1117TEST(math, frexpf) {
1118 int exp;
1119 float fr = frexpf(1024.0f, &exp);
1120 ASSERT_FLOAT_EQ(1024.0f, scalbnf(fr, exp));
1121}
1122
1123TEST(math, frexpl) {
1124 int exp;
1125 long double ldr = frexpl(1024.0, &exp);
1126 ASSERT_FLOAT_EQ(1024.0, scalbnl(ldr, exp));
1127}
1128
1129TEST(math, modf) {
1130 double di;
1131 double df = modf(123.456, &di);
1132 ASSERT_FLOAT_EQ(123.0, di);
1133 ASSERT_FLOAT_EQ(0.456, df);
1134}
1135
1136TEST(math, modff) {
1137 float fi;
1138 float ff = modff(123.456f, &fi);
1139 ASSERT_FLOAT_EQ(123.0f, fi);
1140 ASSERT_FLOAT_EQ(0.45600128f, ff);
1141}
1142
1143TEST(math, modfl) {
1144 long double ldi;
1145 long double ldf = modfl(123.456, &ldi);
1146 ASSERT_FLOAT_EQ(123.0, ldi);
1147 ASSERT_FLOAT_EQ(0.456, ldf);
1148}
1149
1150TEST(math, remquo) {
1151 int q;
1152 double d = remquo(13.0, 4.0, &q);
1153 ASSERT_EQ(3, q);
1154 ASSERT_FLOAT_EQ(1.0, d);
1155}
1156
1157TEST(math, remquof) {
1158 int q;
1159 float f = remquof(13.0f, 4.0f, &q);
1160 ASSERT_EQ(3, q);
1161 ASSERT_FLOAT_EQ(1.0, f);
1162}
1163
1164TEST(math, remquol) {
1165 int q;
1166 long double ld = remquol(13.0, 4.0, &q);
1167 ASSERT_EQ(3, q);
1168 ASSERT_FLOAT_EQ(1.0, ld);
1169}
1170
1171// https://code.google.com/p/android/issues/detail?id=6697
1172TEST(math, frexpf_public_bug_6697) {
1173 int exp;
1174 float fr = frexpf(14.1f, &exp);
1175 ASSERT_FLOAT_EQ(14.1f, scalbnf(fr, exp));
1176}