xref: /llvm-project/libcxx/test/std/depr/depr.c.headers/math_h.pass.cpp (revision 09e3a360581dc36d0820d3fb6da9bd7cfed87b5d)
1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // This test fails because Clang no longer enables -fdelayed-template-parsing
10 // by default on Windows with C++20 (#69431).
11 // XFAIL: msvc && (clang-18 || clang-19 || clang-20)
12 
13 // <math.h>
14 
15 #include <math.h>
16 #include <type_traits>
17 #include <cassert>
18 
19 #include "test_macros.h"
20 #include "hexfloat.h"
21 #include "truncate_fp.h"
22 #include "type_algorithms.h"
23 
24 // convertible to int/float/double/etc
25 template <class T, int N=0>
26 struct Value {
27     operator T () { return T(N); }
28 };
29 
30 // See PR21083
31 // Ambiguous is a user-defined type that defines its own overloads of cmath
32 // functions. When the std overloads are candidates too (by using or adl),
33 // they should not interfere.
34 struct Ambiguous : std::true_type { // ADL
35     operator float () { return 0.f; }
36     operator double () { return 0.; }
37 };
38 Ambiguous abs(Ambiguous){ return Ambiguous(); }
39 Ambiguous acos(Ambiguous){ return Ambiguous(); }
40 Ambiguous asin(Ambiguous){ return Ambiguous(); }
41 Ambiguous atan(Ambiguous){ return Ambiguous(); }
42 Ambiguous atan2(Ambiguous, Ambiguous){ return Ambiguous(); }
43 Ambiguous ceil(Ambiguous){ return Ambiguous(); }
44 Ambiguous cos(Ambiguous){ return Ambiguous(); }
45 Ambiguous cosh(Ambiguous){ return Ambiguous(); }
46 Ambiguous exp(Ambiguous){ return Ambiguous(); }
47 Ambiguous fabs(Ambiguous){ return Ambiguous(); }
48 Ambiguous floor(Ambiguous){ return Ambiguous(); }
49 Ambiguous fmod(Ambiguous, Ambiguous){ return Ambiguous(); }
50 Ambiguous frexp(Ambiguous, int*){ return Ambiguous(); }
51 Ambiguous ldexp(Ambiguous, int){ return Ambiguous(); }
52 Ambiguous log(Ambiguous){ return Ambiguous(); }
53 Ambiguous log10(Ambiguous){ return Ambiguous(); }
54 Ambiguous modf(Ambiguous, Ambiguous*){ return Ambiguous(); }
55 Ambiguous pow(Ambiguous, Ambiguous){ return Ambiguous(); }
56 Ambiguous sin(Ambiguous){ return Ambiguous(); }
57 Ambiguous sinh(Ambiguous){ return Ambiguous(); }
58 Ambiguous sqrt(Ambiguous){ return Ambiguous(); }
59 Ambiguous tan(Ambiguous){ return Ambiguous(); }
60 Ambiguous tanh(Ambiguous){ return Ambiguous(); }
61 Ambiguous signbit(Ambiguous){ return Ambiguous(); }
62 Ambiguous fpclassify(Ambiguous){ return Ambiguous(); }
63 Ambiguous isfinite(Ambiguous){ return Ambiguous(); }
64 Ambiguous isnormal(Ambiguous){ return Ambiguous(); }
65 Ambiguous isgreater(Ambiguous, Ambiguous){ return Ambiguous(); }
66 Ambiguous isgreaterequal(Ambiguous, Ambiguous){ return Ambiguous(); }
67 Ambiguous isless(Ambiguous, Ambiguous){ return Ambiguous(); }
68 Ambiguous islessequal(Ambiguous, Ambiguous){ return Ambiguous(); }
69 Ambiguous islessgreater(Ambiguous, Ambiguous){ return Ambiguous(); }
70 Ambiguous isunordered(Ambiguous, Ambiguous){ return Ambiguous(); }
71 Ambiguous acosh(Ambiguous){ return Ambiguous(); }
72 Ambiguous asinh(Ambiguous){ return Ambiguous(); }
73 Ambiguous atanh(Ambiguous){ return Ambiguous(); }
74 Ambiguous cbrt(Ambiguous){ return Ambiguous(); }
75 Ambiguous copysign(Ambiguous, Ambiguous){ return Ambiguous(); }
76 Ambiguous erf(Ambiguous){ return Ambiguous(); }
77 Ambiguous erfc(Ambiguous){ return Ambiguous(); }
78 Ambiguous exp2(Ambiguous){ return Ambiguous(); }
79 Ambiguous expm1(Ambiguous){ return Ambiguous(); }
80 Ambiguous fdim(Ambiguous, Ambiguous){ return Ambiguous(); }
81 Ambiguous fma(Ambiguous, Ambiguous, Ambiguous){ return Ambiguous(); }
82 Ambiguous fmax(Ambiguous, Ambiguous){ return Ambiguous(); }
83 Ambiguous fmin(Ambiguous, Ambiguous){ return Ambiguous(); }
84 Ambiguous hypot(Ambiguous, Ambiguous){ return Ambiguous(); }
85 Ambiguous ilogb(Ambiguous){ return Ambiguous(); }
86 Ambiguous lgamma(Ambiguous){ return Ambiguous(); }
87 Ambiguous llrint(Ambiguous){ return Ambiguous(); }
88 Ambiguous llround(Ambiguous){ return Ambiguous(); }
89 Ambiguous log1p(Ambiguous){ return Ambiguous(); }
90 Ambiguous log2(Ambiguous){ return Ambiguous(); }
91 Ambiguous logb(Ambiguous){ return Ambiguous(); }
92 Ambiguous lrint(Ambiguous){ return Ambiguous(); }
93 Ambiguous lround(Ambiguous){ return Ambiguous(); }
94 Ambiguous nearbyint(Ambiguous){ return Ambiguous(); }
95 Ambiguous nextafter(Ambiguous, Ambiguous){ return Ambiguous(); }
96 Ambiguous nexttoward(Ambiguous, Ambiguous){ return Ambiguous(); }
97 Ambiguous remainder(Ambiguous, Ambiguous){ return Ambiguous(); }
98 Ambiguous remquo(Ambiguous, Ambiguous, int*){ return Ambiguous(); }
99 Ambiguous rint(Ambiguous){ return Ambiguous(); }
100 Ambiguous round(Ambiguous){ return Ambiguous(); }
101 Ambiguous scalbln(Ambiguous, Ambiguous){ return Ambiguous(); }
102 Ambiguous scalbn(Ambiguous, Ambiguous){ return Ambiguous(); }
103 Ambiguous tgamma(Ambiguous){ return Ambiguous(); }
104 Ambiguous trunc(Ambiguous){ return Ambiguous(); }
105 
106 template <class T, class = decltype(::abs(T()))>
107 std::true_type has_abs_imp(int);
108 template <class T>
109 std::false_type has_abs_imp(...);
110 
111 template <class T>
112 struct has_abs : decltype(has_abs_imp<T>(0)) {};
113 
114 void test_abs() {
115   TEST_DIAGNOSTIC_PUSH
116   TEST_CLANG_DIAGNOSTIC_IGNORED("-Wabsolute-value")
117 
118   ASSERT_SAME_TYPE(decltype(abs((float)0)), float);
119   ASSERT_SAME_TYPE(decltype(abs((double)0)), double);
120   ASSERT_SAME_TYPE(decltype(abs((long double)0)), long double);
121   ASSERT_SAME_TYPE(decltype(abs((int)0)), int);
122   ASSERT_SAME_TYPE(decltype(abs((long)0)), long);
123   ASSERT_SAME_TYPE(decltype(abs((long long)0)), long long);
124   ASSERT_SAME_TYPE(decltype(abs((unsigned char)0)), int);
125   ASSERT_SAME_TYPE(decltype(abs((unsigned short)0)), int);
126   ASSERT_SAME_TYPE(decltype(abs(Ambiguous())), Ambiguous);
127 
128   static_assert(!has_abs<unsigned>::value, "");
129   static_assert(!has_abs<unsigned long>::value, "");
130   static_assert(!has_abs<unsigned long long>::value, "");
131 
132   TEST_DIAGNOSTIC_POP
133 
134   assert(abs(-1.) == 1);
135 }
136 
137 void test_acos() {
138     ASSERT_SAME_TYPE(decltype(acosf(0)), float);
139     ASSERT_SAME_TYPE(decltype(acosl(0)), long double);
140     ASSERT_SAME_TYPE(decltype(acos(Ambiguous())), Ambiguous);
141     assert(acos(1) == 0);
142 }
143 
144 void test_asin() {
145     ASSERT_SAME_TYPE(decltype(asinf(0)), float);
146     ASSERT_SAME_TYPE(decltype(asinl(0)), long double);
147     ASSERT_SAME_TYPE(decltype(asin(Ambiguous())), Ambiguous);
148     assert(asin(0) == 0);
149 }
150 
151 void test_atan() {
152     ASSERT_SAME_TYPE(decltype(atanf(0)), float);
153     ASSERT_SAME_TYPE(decltype(atanl(0)), long double);
154     ASSERT_SAME_TYPE(decltype(atan(Ambiguous())), Ambiguous);
155     assert(atan(0) == 0);
156 }
157 
158 void test_atan2() {
159     ASSERT_SAME_TYPE(decltype(atan2f(0,0)), float);
160     ASSERT_SAME_TYPE(decltype(atan2l(0,0)), long double);
161     ASSERT_SAME_TYPE(decltype(atan2(Ambiguous(), Ambiguous())), Ambiguous);
162     assert(atan2(0,1) == 0);
163 }
164 
165 void test_ceil() {
166     ASSERT_SAME_TYPE(decltype(ceilf(0)), float);
167     ASSERT_SAME_TYPE(decltype(ceill(0)), long double);
168     ASSERT_SAME_TYPE(decltype(ceil(Ambiguous())), Ambiguous);
169     assert(ceil(0) == 0);
170 }
171 
172 void test_cos() {
173     ASSERT_SAME_TYPE(decltype(cosf(0)), float);
174     ASSERT_SAME_TYPE(decltype(cosl(0)), long double);
175     ASSERT_SAME_TYPE(decltype(cos(Ambiguous())), Ambiguous);
176     assert(cos(0) == 1);
177 }
178 
179 void test_cosh() {
180     ASSERT_SAME_TYPE(decltype(coshf(0)), float);
181     ASSERT_SAME_TYPE(decltype(coshl(0)), long double);
182     ASSERT_SAME_TYPE(decltype(cosh(Ambiguous())), Ambiguous);
183     assert(cosh(0) == 1);
184 }
185 
186 void test_exp() {
187     ASSERT_SAME_TYPE(decltype(expf(0)), float);
188     ASSERT_SAME_TYPE(decltype(expl(0)), long double);
189     ASSERT_SAME_TYPE(decltype(exp(Ambiguous())), Ambiguous);
190     assert(exp(0) == 1);
191 }
192 
193 void test_fabs() {
194     ASSERT_SAME_TYPE(decltype(fabsf(0.0f)), float);
195     ASSERT_SAME_TYPE(decltype(fabsl(0.0L)), long double);
196     ASSERT_SAME_TYPE(decltype(fabs(Ambiguous())), Ambiguous);
197     assert(fabs(-1) == 1);
198 }
199 
200 void test_floor() {
201     ASSERT_SAME_TYPE(decltype(floorf(0)), float);
202     ASSERT_SAME_TYPE(decltype(floorl(0)), long double);
203     ASSERT_SAME_TYPE(decltype(floor(Ambiguous())), Ambiguous);
204     assert(floor(1) == 1);
205 }
206 
207 void test_fmod() {
208     ASSERT_SAME_TYPE(decltype(fmodf(0,0)), float);
209     ASSERT_SAME_TYPE(decltype(fmodl(0,0)), long double);
210     ASSERT_SAME_TYPE(decltype(fmod(Ambiguous(), Ambiguous())), Ambiguous);
211     assert(fmod(1.5,1) == .5);
212 }
213 
214 void test_frexp() {
215     int ip;
216     ASSERT_SAME_TYPE(decltype(frexpf(0, &ip)), float);
217     ASSERT_SAME_TYPE(decltype(frexpl(0, &ip)), long double);
218     ASSERT_SAME_TYPE(decltype(frexp(Ambiguous(), &ip)), Ambiguous);
219     assert(frexp(0, &ip) == 0);
220 }
221 
222 void test_ldexp() {
223     int ip = 1;
224     ASSERT_SAME_TYPE(decltype(ldexpf(0, ip)), float);
225     ASSERT_SAME_TYPE(decltype(ldexpl(0, ip)), long double);
226     ASSERT_SAME_TYPE(decltype(ldexp(Ambiguous(), ip)), Ambiguous);
227     assert(ldexp(1, ip) == 2);
228 }
229 
230 void test_log() {
231     ASSERT_SAME_TYPE(decltype(logf(0)), float);
232     ASSERT_SAME_TYPE(decltype(logl(0)), long double);
233     ASSERT_SAME_TYPE(decltype(log(Ambiguous())), Ambiguous);
234     assert(log(1) == 0);
235 }
236 
237 void test_log10() {
238     ASSERT_SAME_TYPE(decltype(log10f(0)), float);
239     ASSERT_SAME_TYPE(decltype(log10l(0)), long double);
240     ASSERT_SAME_TYPE(decltype(log10(Ambiguous())), Ambiguous);
241     assert(log10(1) == 0);
242 }
243 
244 void test_modf() {
245     ASSERT_SAME_TYPE(decltype(modf((float)0, (float*)0)), float);
246     ASSERT_SAME_TYPE(decltype(modf((double)0, (double*)0)), double);
247     ASSERT_SAME_TYPE(decltype(modf((long double)0, (long double*)0)), long double);
248     ASSERT_SAME_TYPE(decltype(modff(0, (float*)0)), float);
249     ASSERT_SAME_TYPE(decltype(modfl(0, (long double*)0)), long double);
250     ASSERT_SAME_TYPE(decltype(modf(Ambiguous(), (Ambiguous*)0)), Ambiguous);
251     double i;
252     assert(modf(1., &i) == 0);
253 }
254 
255 void test_pow() {
256     ASSERT_SAME_TYPE(decltype(powf(0,0)), float);
257     ASSERT_SAME_TYPE(decltype(powl(0,0)), long double);
258     ASSERT_SAME_TYPE(decltype(pow((int)0, (int)0)), double);
259     // ASSERT_SAME_TYPE(decltype(pow(Value<int>(), (int)0)), double);
260     // ASSERT_SAME_TYPE(decltype(pow(Value<long double>(), (float)0)), long double);
261     // ASSERT_SAME_TYPE(decltype(pow((float) 0, Value<float>())), float);
262     ASSERT_SAME_TYPE(decltype(pow(Ambiguous(), Ambiguous())), Ambiguous);
263     assert(pow(1,1) == 1);
264     // assert(pow(Value<int,1>(), Value<float,1>())  == 1);
265     // assert(pow(1.0f, Value<double,1>()) == 1);
266     // assert(pow(1.0, Value<int,1>()) == 1);
267     // assert(pow(Value<long double,1>(), 1LL) == 1);
268 }
269 
270 void test_sin() {
271     ASSERT_SAME_TYPE(decltype(sinf(0)), float);
272     ASSERT_SAME_TYPE(decltype(sinl(0)), long double);
273     ASSERT_SAME_TYPE(decltype(sin(Ambiguous())), Ambiguous);
274     assert(sin(0) == 0);
275 }
276 
277 void test_sinh() {
278     ASSERT_SAME_TYPE(decltype(sinhf(0)), float);
279     ASSERT_SAME_TYPE(decltype(sinhl(0)), long double);
280     ASSERT_SAME_TYPE(decltype(sinh(Ambiguous())), Ambiguous);
281     assert(sinh(0) == 0);
282 }
283 
284 void test_sqrt() {
285     ASSERT_SAME_TYPE(decltype(sqrtf(0)), float);
286     ASSERT_SAME_TYPE(decltype(sqrtl(0)), long double);
287     ASSERT_SAME_TYPE(decltype(sqrt(Ambiguous())), Ambiguous);
288     assert(sqrt(4) == 2);
289 }
290 
291 void test_tan() {
292     ASSERT_SAME_TYPE(decltype(tanf(0)), float);
293     ASSERT_SAME_TYPE(decltype(tanl(0)), long double);
294     ASSERT_SAME_TYPE(decltype(tan(Ambiguous())), Ambiguous);
295     assert(tan(0) == 0);
296 }
297 
298 void test_tanh() {
299     ASSERT_SAME_TYPE(decltype(tanhf(0)), float);
300     ASSERT_SAME_TYPE(decltype(tanhl(0)), long double);
301     ASSERT_SAME_TYPE(decltype(tanh(Ambiguous())), Ambiguous);
302     assert(tanh(0) == 0);
303 }
304 
305 void test_signbit() {
306 #ifdef signbit
307 #error signbit defined
308 #endif
309     ASSERT_SAME_TYPE(decltype(signbit(Ambiguous())), Ambiguous);
310     assert(signbit(-1.0) == true);
311 }
312 
313 void test_fpclassify() {
314 #ifdef fpclassify
315 #error fpclassify defined
316 #endif
317     ASSERT_SAME_TYPE(decltype(fpclassify(Ambiguous())), Ambiguous);
318     assert(fpclassify(-1.0) == FP_NORMAL);
319 }
320 
321 void test_isfinite() {
322 #ifdef isfinite
323 #error isfinite defined
324 #endif
325     ASSERT_SAME_TYPE(decltype(isfinite(Ambiguous())), Ambiguous);
326     assert(isfinite(-1.0) == true);
327 }
328 
329 void test_isnormal() {
330 #ifdef isnormal
331 #error isnormal defined
332 #endif
333     ASSERT_SAME_TYPE(decltype(isnormal(Ambiguous())), Ambiguous);
334     assert(isnormal(-1.0) == true);
335 }
336 
337 void test_isgreater() {
338 #ifdef isgreater
339 #error isgreater defined
340 #endif
341     ASSERT_SAME_TYPE(decltype(isgreater(Ambiguous(), Ambiguous())), Ambiguous);
342     assert(isgreater(-1.0, 0.F) == false);
343 }
344 
345 void test_isgreaterequal() {
346 #ifdef isgreaterequal
347 #error isgreaterequal defined
348 #endif
349     ASSERT_SAME_TYPE(decltype(isgreaterequal(Ambiguous(), Ambiguous())), Ambiguous);
350     assert(isgreaterequal(-1.0, 0.F) == false);
351 }
352 
353 void test_isinf() {
354 #ifdef isinf
355 #error isinf defined
356 #endif
357     ASSERT_SAME_TYPE(decltype(isinf((float)0)), bool);
358 
359     typedef decltype(isinf((double)0)) DoubleRetType;
360 #ifndef __linux__
361     ASSERT_SAME_TYPE(DoubleRetType, bool);
362 #else
363     // GLIBC < 2.26 defines 'isinf(double)' with a return type of 'int' in
364     // all C++ dialects. The test should tolerate this.
365     // See: https://sourceware.org/bugzilla/show_bug.cgi?id=19439
366     static_assert((std::is_same<DoubleRetType, bool>::value
367                 || std::is_same<DoubleRetType, int>::value), "");
368 #endif
369 
370     ASSERT_SAME_TYPE(decltype(isinf(0)), bool);
371     ASSERT_SAME_TYPE(decltype(isinf((long double)0)), bool);
372     assert(isinf(-1.0) == false);
373 }
374 
375 void test_isless() {
376 #ifdef isless
377 #error isless defined
378 #endif
379     ASSERT_SAME_TYPE(decltype(isless(Ambiguous(), Ambiguous())), Ambiguous);
380     assert(isless(-1.0, 0.F) == true);
381 }
382 
383 void test_islessequal() {
384 #ifdef islessequal
385 #error islessequal defined
386 #endif
387     ASSERT_SAME_TYPE(decltype(islessequal(Ambiguous(), Ambiguous())), Ambiguous);
388     assert(islessequal(-1.0, 0.F) == true);
389 }
390 
391 void test_islessgreater() {
392 #ifdef islessgreater
393 #error islessgreater defined
394 #endif
395     ASSERT_SAME_TYPE(decltype(islessgreater(Ambiguous(), Ambiguous())), Ambiguous);
396     assert(islessgreater(-1.0, 0.F) == true);
397 }
398 
399 void test_isnan() {
400 #ifdef isnan
401 #error isnan defined
402 #endif
403     ASSERT_SAME_TYPE(decltype(isnan((float)0)), bool);
404 
405     typedef decltype(isnan((double)0)) DoubleRetType;
406 #ifndef __linux__
407     ASSERT_SAME_TYPE(DoubleRetType, bool);
408 #else
409     // GLIBC < 2.26 defines 'isnan(double)' with a return type of 'int' in
410     // all C++ dialects. The test should tolerate this.
411     // See: https://sourceware.org/bugzilla/show_bug.cgi?id=19439
412     static_assert((std::is_same<DoubleRetType, bool>::value
413                 || std::is_same<DoubleRetType, int>::value), "");
414 #endif
415 
416     ASSERT_SAME_TYPE(decltype(isnan(0)), bool);
417     ASSERT_SAME_TYPE(decltype(isnan((long double)0)), bool);
418     assert(isnan(-1.0) == false);
419 }
420 
421 void test_isunordered() {
422 #ifdef isunordered
423 #error isunordered defined
424 #endif
425     ASSERT_SAME_TYPE(decltype(isunordered(Ambiguous(), Ambiguous())), Ambiguous);
426     assert(isunordered(-1.0, 0.F) == false);
427 }
428 
429 void test_acosh() {
430     ASSERT_SAME_TYPE(decltype(acoshf(0)), float);
431     ASSERT_SAME_TYPE(decltype(acoshl(0)), long double);
432     ASSERT_SAME_TYPE(decltype(acosh(Ambiguous())), Ambiguous);
433     assert(acosh(1) == 0);
434 }
435 
436 void test_asinh() {
437     ASSERT_SAME_TYPE(decltype(asinhf(0)), float);
438     ASSERT_SAME_TYPE(decltype(asinhl(0)), long double);
439     ASSERT_SAME_TYPE(decltype(asinh(Ambiguous())), Ambiguous);
440     assert(asinh(0) == 0);
441 }
442 
443 void test_atanh() {
444     ASSERT_SAME_TYPE(decltype(atanhf(0)), float);
445     ASSERT_SAME_TYPE(decltype(atanhl(0)), long double);
446     ASSERT_SAME_TYPE(decltype(atanh(Ambiguous())), Ambiguous);
447     assert(atanh(0) == 0);
448 }
449 
450 void test_cbrt() {
451     ASSERT_SAME_TYPE(decltype(cbrtf(0)), float);
452     ASSERT_SAME_TYPE(decltype(cbrtl(0)), long double);
453     ASSERT_SAME_TYPE(decltype(cbrt(Ambiguous())), Ambiguous);
454     assert(truncate_fp(cbrt(1)) == 1);
455 }
456 
457 void test_copysign() {
458     ASSERT_SAME_TYPE(decltype(copysignf(0,0)), float);
459     ASSERT_SAME_TYPE(decltype(copysignl(0,0)), long double);
460     ASSERT_SAME_TYPE(decltype(copysign((int)0, (int)0)), double);
461     ASSERT_SAME_TYPE(decltype(copysign(Ambiguous(), Ambiguous())), Ambiguous);
462     assert(copysign(1,1) == 1);
463 }
464 
465 void test_erf() {
466     ASSERT_SAME_TYPE(decltype(erff(0)), float);
467     ASSERT_SAME_TYPE(decltype(erfl(0)), long double);
468     ASSERT_SAME_TYPE(decltype(erf(Ambiguous())), Ambiguous);
469     assert(erf(0) == 0);
470 }
471 
472 void test_erfc() {
473     ASSERT_SAME_TYPE(decltype(erfcf(0)), float);
474     ASSERT_SAME_TYPE(decltype(erfcl(0)), long double);
475     ASSERT_SAME_TYPE(decltype(erfc(Ambiguous())), Ambiguous);
476     assert(erfc(0) == 1);
477 }
478 
479 void test_exp2() {
480     ASSERT_SAME_TYPE(decltype(exp2f(0)), float);
481     ASSERT_SAME_TYPE(decltype(exp2l(0)), long double);
482     ASSERT_SAME_TYPE(decltype(exp2(Ambiguous())), Ambiguous);
483     assert(exp2(1) == 2);
484 }
485 
486 void test_expm1() {
487     ASSERT_SAME_TYPE(decltype(expm1f(0)), float);
488     ASSERT_SAME_TYPE(decltype(expm1l(0)), long double);
489     ASSERT_SAME_TYPE(decltype(expm1(Ambiguous())), Ambiguous);
490     assert(expm1(0) == 0);
491 }
492 
493 void test_fdim() {
494     ASSERT_SAME_TYPE(decltype(fdimf(0,0)), float);
495     ASSERT_SAME_TYPE(decltype(fdiml(0,0)), long double);
496     ASSERT_SAME_TYPE(decltype(fdim((int)0, (int)0)), double);
497     ASSERT_SAME_TYPE(decltype(fdim(Ambiguous(), Ambiguous())), Ambiguous);
498     assert(fdim(1,0) == 1);
499 }
500 
501 void test_fma() {
502     ASSERT_SAME_TYPE(decltype(fma((bool)0, (float)0, (float)0)), double);
503     ASSERT_SAME_TYPE(decltype(fma((float)0, (float)0, (double)0)), double);
504     ASSERT_SAME_TYPE(decltype(fma((float)0, (float)0, (long double)0)), long double);
505     ASSERT_SAME_TYPE(decltype(fma((float)0, (float)0, (float)0)), float);
506 
507     ASSERT_SAME_TYPE(decltype(fma((bool)0, (double)0, (double)0)), double);
508     ASSERT_SAME_TYPE(decltype(fma((double)0, (double)0, (float)0)), double);
509     ASSERT_SAME_TYPE(decltype(fma((double)0, (double)0, (long double)0)), long double);
510     ASSERT_SAME_TYPE(decltype(fma((double)0, (double)0,  (double)0)), double);
511 
512     ASSERT_SAME_TYPE(decltype(fma((long double)0, (long double)0, (float)0)), long double);
513     ASSERT_SAME_TYPE(decltype(fma((double)0, (long double)0, (long double)0)), long double);
514     ASSERT_SAME_TYPE(decltype(fma((long double)0, (long double)0, (long double)0)), long double);
515 
516     ASSERT_SAME_TYPE(decltype(fmaf(0,0,0)), float);
517     ASSERT_SAME_TYPE(decltype(fmal(0,0,0)), long double);
518     ASSERT_SAME_TYPE(decltype(fma(Ambiguous(), Ambiguous(), Ambiguous())), Ambiguous);
519     assert(fma(1,1,1) == 2);
520 }
521 
522 void test_fmax() {
523     ASSERT_SAME_TYPE(decltype(fmaxf(0,0)), float);
524     ASSERT_SAME_TYPE(decltype(fmaxl(0,0)), long double);
525     ASSERT_SAME_TYPE(decltype(fmax((int)0, (int)0)), double);
526     ASSERT_SAME_TYPE(decltype(fmax(Ambiguous(), Ambiguous())), Ambiguous);
527     assert(fmax(1,0) == 1);
528 }
529 
530 void test_fmin() {
531     ASSERT_SAME_TYPE(decltype(fminf(0,0)), float);
532     ASSERT_SAME_TYPE(decltype(fminl(0,0)), long double);
533     ASSERT_SAME_TYPE(decltype(fmin((int)0, (int)0)), double);
534     ASSERT_SAME_TYPE(decltype(fmin(Ambiguous(), Ambiguous())), Ambiguous);
535     assert(fmin(1,0) == 0);
536 }
537 
538 void test_hypot() {
539     ASSERT_SAME_TYPE(decltype(hypotf(0,0)), float);
540     ASSERT_SAME_TYPE(decltype(hypotl(0,0)), long double);
541     ASSERT_SAME_TYPE(decltype(hypot((int)0, (int)0)), double);
542     ASSERT_SAME_TYPE(decltype(hypot(Ambiguous(), Ambiguous())), Ambiguous);
543     assert(hypot(3,4) == 5);
544 }
545 
546 void test_ilogb() {
547     ASSERT_SAME_TYPE(decltype(ilogbf(0)), int);
548     ASSERT_SAME_TYPE(decltype(ilogbl(0)), int);
549     ASSERT_SAME_TYPE(decltype(ilogb(Ambiguous())), Ambiguous);
550     assert(ilogb(1) == 0);
551 }
552 
553 void test_lgamma() {
554     ASSERT_SAME_TYPE(decltype(lgammaf(0)), float);
555     ASSERT_SAME_TYPE(decltype(lgammal(0)), long double);
556     ASSERT_SAME_TYPE(decltype(lgamma(Ambiguous())), Ambiguous);
557     assert(lgamma(1) == 0);
558 }
559 
560 void test_llrint() {
561     ASSERT_SAME_TYPE(decltype(llrintf(0)), long long);
562     ASSERT_SAME_TYPE(decltype(llrintl(0)), long long);
563     ASSERT_SAME_TYPE(decltype(llrint(Ambiguous())), Ambiguous);
564     assert(llrint(1) == 1LL);
565 }
566 
567 void test_llround() {
568     ASSERT_SAME_TYPE(decltype(llroundf(0)), long long);
569     ASSERT_SAME_TYPE(decltype(llroundl(0)), long long);
570     ASSERT_SAME_TYPE(decltype(llround(Ambiguous())), Ambiguous);
571     assert(llround(1) == 1LL);
572 }
573 
574 void test_log1p() {
575     ASSERT_SAME_TYPE(decltype(log1pf(0)), float);
576     ASSERT_SAME_TYPE(decltype(log1pl(0)), long double);
577     ASSERT_SAME_TYPE(decltype(log1p(Ambiguous())), Ambiguous);
578     assert(log1p(0) == 0);
579 }
580 
581 void test_log2() {
582     ASSERT_SAME_TYPE(decltype(log2f(0)), float);
583     ASSERT_SAME_TYPE(decltype(log2l(0)), long double);
584     ASSERT_SAME_TYPE(decltype(log2(Ambiguous())), Ambiguous);
585     assert(log2(1) == 0);
586 }
587 
588 void test_logb() {
589     ASSERT_SAME_TYPE(decltype(logbf(0)), float);
590     ASSERT_SAME_TYPE(decltype(logbl(0)), long double);
591     ASSERT_SAME_TYPE(decltype(logb(Ambiguous())), Ambiguous);
592     assert(logb(1) == 0);
593 }
594 
595 void test_lrint() {
596     ASSERT_SAME_TYPE(decltype(lrintf(0)), long);
597     ASSERT_SAME_TYPE(decltype(lrintl(0)), long);
598     ASSERT_SAME_TYPE(decltype(lrint(Ambiguous())), Ambiguous);
599     assert(lrint(1) == 1L);
600 }
601 
602 void test_lround() {
603     ASSERT_SAME_TYPE(decltype(lroundf(0)), long);
604     ASSERT_SAME_TYPE(decltype(lroundl(0)), long);
605     ASSERT_SAME_TYPE(decltype(lround(Ambiguous())), Ambiguous);
606     assert(lround(1) == 1L);
607 }
608 
609 void test_nan() {
610     ASSERT_SAME_TYPE(decltype(nan("")), double);
611     ASSERT_SAME_TYPE(decltype(nanf("")), float);
612     ASSERT_SAME_TYPE(decltype(nanl("")), long double);
613 }
614 
615 void test_nearbyint() {
616     ASSERT_SAME_TYPE(decltype(nearbyintf(0)), float);
617     ASSERT_SAME_TYPE(decltype(nearbyintl(0)), long double);
618     ASSERT_SAME_TYPE(decltype(nearbyint(Ambiguous())), Ambiguous);
619     assert(nearbyint(1) == 1);
620 }
621 
622 void test_nextafter() {
623     ASSERT_SAME_TYPE(decltype(nextafterf(0,0)), float);
624     ASSERT_SAME_TYPE(decltype(nextafterl(0,0)), long double);
625     ASSERT_SAME_TYPE(decltype(nextafter((int)0, (int)0)), double);
626     ASSERT_SAME_TYPE(decltype(nextafter(Ambiguous(), Ambiguous())), Ambiguous);
627     assert(nextafter(0,1) == hexfloat<double>(0x1, 0, -1074));
628 }
629 
630 void test_nexttoward() {
631     ASSERT_SAME_TYPE(decltype(nexttoward((float)0, (long double)0)), float);
632     ASSERT_SAME_TYPE(decltype(nexttoward((bool)0, (long double)0)), double);
633     ASSERT_SAME_TYPE(decltype(nexttoward((unsigned short)0, (long double)0)), double);
634     ASSERT_SAME_TYPE(decltype(nexttoward((int)0, (long double)0)), double);
635     ASSERT_SAME_TYPE(decltype(nexttoward((unsigned int)0, (long double)0)), double);
636     ASSERT_SAME_TYPE(decltype(nexttoward((long)0, (long double)0)), double);
637     ASSERT_SAME_TYPE(decltype(nexttoward((unsigned long)0, (long double)0)), double);
638     ASSERT_SAME_TYPE(decltype(nexttoward((long long)0, (long double)0)), double);
639     ASSERT_SAME_TYPE(decltype(nexttoward((unsigned long long)0, (long double)0)), double);
640     ASSERT_SAME_TYPE(decltype(nexttoward((double)0, (long double)0)), double);
641     ASSERT_SAME_TYPE(decltype(nexttoward((long double)0, (long double)0)), long double);
642     ASSERT_SAME_TYPE(decltype(nexttowardf(0, (long double)0)), float);
643     ASSERT_SAME_TYPE(decltype(nexttowardl(0, (long double)0)), long double);
644     ASSERT_SAME_TYPE(decltype(nexttoward(Ambiguous(), Ambiguous())), Ambiguous);
645     assert(nexttoward(0, 1) == hexfloat<double>(0x1, 0, -1074));
646 }
647 
648 void test_remainder() {
649     ASSERT_SAME_TYPE(decltype(remainderf(0,0)), float);
650     ASSERT_SAME_TYPE(decltype(remainderl(0,0)), long double);
651     ASSERT_SAME_TYPE(decltype(remainder((int)0, (int)0)), double);
652     ASSERT_SAME_TYPE(decltype(remainder(Ambiguous(), Ambiguous())), Ambiguous);
653     assert(remainder(0.5,1) == 0.5);
654 }
655 
656 void test_remquo() {
657     int ip;
658     ASSERT_SAME_TYPE(decltype(remquof(0,0, &ip)), float);
659     ASSERT_SAME_TYPE(decltype(remquol(0,0, &ip)), long double);
660     ASSERT_SAME_TYPE(decltype(remquo((int)0, (int)0, &ip)), double);
661     ASSERT_SAME_TYPE(decltype(remquo(Ambiguous(), Ambiguous(), &ip)), Ambiguous);
662     assert(remquo(0.5,1, &ip) == 0.5);
663 }
664 
665 void test_rint() {
666     ASSERT_SAME_TYPE(decltype(rintf(0)), float);
667     ASSERT_SAME_TYPE(decltype(rintl(0)), long double);
668     ASSERT_SAME_TYPE(decltype(rint(Ambiguous())), Ambiguous);
669     assert(rint(1) == 1);
670 }
671 
672 void test_round() {
673     ASSERT_SAME_TYPE(decltype(roundf(0)), float);
674     ASSERT_SAME_TYPE(decltype(roundl(0)), long double);
675     ASSERT_SAME_TYPE(decltype(round(Ambiguous())), Ambiguous);
676     assert(round(1) == 1);
677 }
678 
679 void test_scalbln() {
680     ASSERT_SAME_TYPE(decltype(scalbln((float)0, (long)0)), float);
681     ASSERT_SAME_TYPE(decltype(scalbln((bool)0, (long)0)), double);
682     ASSERT_SAME_TYPE(decltype(scalbln((unsigned short)0, (long)0)), double);
683     ASSERT_SAME_TYPE(decltype(scalbln((int)0, (long)0)), double);
684     ASSERT_SAME_TYPE(decltype(scalbln((unsigned int)0, (long)0)), double);
685     ASSERT_SAME_TYPE(decltype(scalbln((long)0, (long)0)), double);
686     ASSERT_SAME_TYPE(decltype(scalbln((unsigned long)0, (long)0)), double);
687     ASSERT_SAME_TYPE(decltype(scalbln((long long)0, (long)0)), double);
688     ASSERT_SAME_TYPE(decltype(scalbln((unsigned long long)0, (long)0)), double);
689     ASSERT_SAME_TYPE(decltype(scalbln((double)0, (long)0)), double);
690     ASSERT_SAME_TYPE(decltype(scalbln((long double)0, (long)0)), long double);
691     ASSERT_SAME_TYPE(decltype(scalblnf(0, (long)0)), float);
692     ASSERT_SAME_TYPE(decltype(scalblnl(0, (long)0)), long double);
693     ASSERT_SAME_TYPE(decltype(scalbln(Ambiguous(), Ambiguous())), Ambiguous);
694     assert(scalbln(1, 1) == 2);
695 }
696 
697 void test_scalbn() {
698     ASSERT_SAME_TYPE(decltype(scalbn((float)0, (int)0)), float);
699     ASSERT_SAME_TYPE(decltype(scalbn((bool)0, (int)0)), double);
700     ASSERT_SAME_TYPE(decltype(scalbn((unsigned short)0, (int)0)), double);
701     ASSERT_SAME_TYPE(decltype(scalbn((int)0, (int)0)), double);
702     ASSERT_SAME_TYPE(decltype(scalbn((unsigned int)0, (int)0)), double);
703     ASSERT_SAME_TYPE(decltype(scalbn((long)0, (int)0)), double);
704     ASSERT_SAME_TYPE(decltype(scalbn((unsigned long)0, (int)0)), double);
705     ASSERT_SAME_TYPE(decltype(scalbn((long long)0, (int)0)), double);
706     ASSERT_SAME_TYPE(decltype(scalbn((unsigned long long)0, (int)0)), double);
707     ASSERT_SAME_TYPE(decltype(scalbn((double)0, (int)0)), double);
708     ASSERT_SAME_TYPE(decltype(scalbn((long double)0, (int)0)), long double);
709     ASSERT_SAME_TYPE(decltype(scalbnf(0, (int)0)), float);
710     ASSERT_SAME_TYPE(decltype(scalbnl(0, (int)0)), long double);
711     ASSERT_SAME_TYPE(decltype(scalbn(Ambiguous(), Ambiguous())), Ambiguous);
712     assert(scalbn(1, 1) == 2);
713 }
714 
715 void test_tgamma() {
716     ASSERT_SAME_TYPE(decltype(tgammaf(0)), float);
717     ASSERT_SAME_TYPE(decltype(tgammal(0)), long double);
718     ASSERT_SAME_TYPE(decltype(tgamma(Ambiguous())), Ambiguous);
719     assert(tgamma(1) == 1);
720 }
721 
722 void test_trunc() {
723     ASSERT_SAME_TYPE(decltype(truncf(0)), float);
724     ASSERT_SAME_TYPE(decltype(truncl(0)), long double);
725     ASSERT_SAME_TYPE(decltype(trunc(Ambiguous())), Ambiguous);
726     assert(trunc(1) == 1);
727 }
728 
729 template <class PromoteResult, class Arg = void>
730 struct test_single_arg {
731   template <class T = Arg>
732   void operator()() {
733     ASSERT_SAME_TYPE(decltype(::acos(T())), PromoteResult);
734     (void)::acos(T());
735     ASSERT_SAME_TYPE(decltype(::asin(T())), PromoteResult);
736     (void)::asin(T());
737     ASSERT_SAME_TYPE(decltype(::atan(T())), PromoteResult);
738     (void)::atan(T());
739     ASSERT_SAME_TYPE(decltype(::ceil(T())), PromoteResult);
740     (void)::ceil(T());
741     ASSERT_SAME_TYPE(decltype(::cos(T())), PromoteResult);
742     (void)::cos(T());
743     ASSERT_SAME_TYPE(decltype(::cosh(T())), PromoteResult);
744     (void)::cosh(T());
745     ASSERT_SAME_TYPE(decltype(::exp(T())), PromoteResult);
746     (void)::exp(T());
747     ASSERT_SAME_TYPE(decltype(::fabs(T())), PromoteResult);
748     (void)::fabs(T());
749     ASSERT_SAME_TYPE(decltype(::floor(T())), PromoteResult);
750     (void)::floor(T());
751     int ip;
752     ASSERT_SAME_TYPE(decltype(::frexp(T(), &ip)), PromoteResult);
753     (void)::frexp(T(), &ip);
754     ASSERT_SAME_TYPE(decltype(::ldexp(T(), ip)), PromoteResult);
755     (void)::ldexp(T(), ip);
756     ASSERT_SAME_TYPE(decltype(::log(T())), PromoteResult);
757     (void)::log(T());
758     ASSERT_SAME_TYPE(decltype(::log10(T())), PromoteResult);
759     (void)::log10(T());
760     ASSERT_SAME_TYPE(decltype(::sin(T())), PromoteResult);
761     (void)::sin(T());
762     ASSERT_SAME_TYPE(decltype(::sinh(T())), PromoteResult);
763     (void)::sinh(T());
764     ASSERT_SAME_TYPE(decltype(::sqrt(T())), PromoteResult);
765     (void)::sqrt(T());
766     ASSERT_SAME_TYPE(decltype(::tan(T())), PromoteResult);
767     (void)::tan(T());
768     ASSERT_SAME_TYPE(decltype(::tanh(T())), PromoteResult);
769     (void)::tanh(T());
770     ASSERT_SAME_TYPE(decltype(::signbit(T())), bool);
771     (void)::signbit(T());
772     ASSERT_SAME_TYPE(decltype(::fpclassify(T())), int);
773     (void)::fpclassify(T());
774     ASSERT_SAME_TYPE(decltype(::isfinite(T())), bool);
775     (void)::isfinite(T());
776     ASSERT_SAME_TYPE(decltype(::isnormal(T())), bool);
777     (void)::isnormal(T());
778     ASSERT_SAME_TYPE(decltype(::acosh(T())), PromoteResult);
779     (void)::acosh(T());
780     ASSERT_SAME_TYPE(decltype(::asinh(T())), PromoteResult);
781     (void)::asinh(T());
782     ASSERT_SAME_TYPE(decltype(::atanh(T())), PromoteResult);
783     (void)::atanh(T());
784     ASSERT_SAME_TYPE(decltype(::cbrt(T())), PromoteResult);
785     (void)::cbrt(T());
786     ASSERT_SAME_TYPE(decltype(::erf(T())), PromoteResult);
787     (void)::erf(T());
788     ASSERT_SAME_TYPE(decltype(::erfc(T())), PromoteResult);
789     (void)::erfc(T());
790     ASSERT_SAME_TYPE(decltype(::exp2(T())), PromoteResult);
791     (void)::exp2(T());
792     ASSERT_SAME_TYPE(decltype(::expm1(T())), PromoteResult);
793     (void)::expm1(T());
794     ASSERT_SAME_TYPE(decltype(::ilogb(T())), int);
795     (void)::ilogb(T());
796     ASSERT_SAME_TYPE(decltype(::lgamma(T())), PromoteResult);
797     (void)::lgamma(T());
798     ASSERT_SAME_TYPE(decltype(::llrint(T())), long long);
799     (void)::llrint(T());
800     ASSERT_SAME_TYPE(decltype(::llround(T())), long long);
801     (void)::llround(T());
802     ASSERT_SAME_TYPE(decltype(::log1p(T())), PromoteResult);
803     (void)::log1p(T());
804     ASSERT_SAME_TYPE(decltype(::log2(T())), PromoteResult);
805     (void)::log2(T());
806     ASSERT_SAME_TYPE(decltype(::logb(T())), PromoteResult);
807     (void)::logb(T());
808     ASSERT_SAME_TYPE(decltype(::lrint(T())), long);
809     (void)::lrint(T());
810     ASSERT_SAME_TYPE(decltype(::lround(T())), long);
811     (void)::lround(T());
812     ASSERT_SAME_TYPE(decltype(::nearbyint(T())), PromoteResult);
813     (void)::nearbyint(T());
814     ASSERT_SAME_TYPE(decltype(::rint(T())), PromoteResult);
815     (void)::rint(T());
816     ASSERT_SAME_TYPE(decltype(::round(T())), PromoteResult);
817     (void)::round(T());
818     ASSERT_SAME_TYPE(decltype(::trunc(T())), PromoteResult);
819     (void)::trunc(T());
820     ASSERT_SAME_TYPE(decltype(::tgamma(T())), PromoteResult);
821     (void)::tgamma(T());
822   }
823 };
824 
825 template <class PromoteResult, class Arg1 = void, class Arg2 = void>
826 struct test_two_args {
827   template <class T = Arg1, class U = Arg2>
828   void operator()() {
829     ASSERT_SAME_TYPE(decltype(::atan2(T(), U())), PromoteResult);
830     (void)::atan2(T(), U());
831     ASSERT_SAME_TYPE(decltype(::fmod(T(), U())), PromoteResult);
832     (void)::fmod(T(), U());
833     ASSERT_SAME_TYPE(decltype(::pow(T(), U())), PromoteResult);
834     (void)::pow(T(), U());
835     ASSERT_SAME_TYPE(decltype(::isgreater(T(), U())), bool);
836     (void)::isgreater(T(), U());
837     ASSERT_SAME_TYPE(decltype(::isgreaterequal(T(), U())), bool);
838     (void)::isgreaterequal(T(), U());
839     ASSERT_SAME_TYPE(decltype(::isless(T(), U())), bool);
840     (void)::isless(T(), U());
841     ASSERT_SAME_TYPE(decltype(::islessequal(T(), U())), bool);
842     (void)::islessequal(T(), U());
843     ASSERT_SAME_TYPE(decltype(::islessgreater(T(), U())), bool);
844     (void)::islessgreater(T(), U());
845     ASSERT_SAME_TYPE(decltype(::isunordered(T(), U())), bool);
846     (void)::isunordered(T(), U());
847     ASSERT_SAME_TYPE(decltype(::copysign(T(), U())), PromoteResult);
848     (void)::copysign(T(), U());
849     ASSERT_SAME_TYPE(decltype(::fdim(T(), U())), PromoteResult);
850     (void)::fdim(T(), U());
851     ASSERT_SAME_TYPE(decltype(::fmax(T(), U())), PromoteResult);
852     (void)::fmax(T(), U());
853     ASSERT_SAME_TYPE(decltype(::fmin(T(), U())), PromoteResult);
854     (void)::fmin(T(), U());
855     ASSERT_SAME_TYPE(decltype(::hypot(T(), U())), PromoteResult);
856     (void)::hypot(T(), U());
857     ASSERT_SAME_TYPE(decltype(::nextafter(T(), U())), PromoteResult);
858     (void)::nextafter(T(), U());
859     ASSERT_SAME_TYPE(decltype(::remainder(T(), U())), PromoteResult);
860     (void)::remainder(T(), U());
861     int ip;
862     ASSERT_SAME_TYPE(decltype(::remquo(T(), U(), &ip)), PromoteResult);
863     ::remquo(T(), U(), &ip);
864   }
865 };
866 
867 template <class PromoteResult, class Arg1 = void, class Arg2 = void, class Arg3 = void>
868 struct test_three_args {
869   template <class T = Arg1, class U = Arg2, class V = Arg3>
870   void operator()() {
871     ASSERT_SAME_TYPE(decltype(::fma(T(), U(), V())), PromoteResult);
872     (void)::fma(T(), U(), V());
873   }
874 };
875 
876 struct CallTwoArgs {
877   using integral_float_double = types::concatenate_t<types::integral_types, types::type_list<float, double> >;
878 
879   template <class Arg2>
880   void operator()() {
881     types::for_each(integral_float_double(), test_two_args</*PromoteResult=*/double, /*Iterate*/void, Arg2>());
882   }
883 };
884 
885 template <class T>
886 struct CallThreeArgs {
887   using integral_float_double = types::concatenate_t<types::integral_types, types::type_list<float, double> >;
888 
889   template <class Arg3>
890   struct Helper {
891 
892     template <class Arg2>
893     void operator()() {
894       types::for_each(integral_float_double(), test_three_args</*PromoteResult=*/double, /*Iterate*/void, Arg2, Arg3>());
895     }
896   };
897 
898   template <class Arg3>
899   void operator()() {
900     types::for_each(integral_float_double(), Helper<Arg3>());
901   }
902 };
903 
904 int main(int, char**) {
905   types::for_each(types::integral_types(), test_single_arg</*PromoteResult=*/double>());
906   test_single_arg</*PromoteResult=*/float, /*Arg=*/float>();
907   test_single_arg</*PromoteResult=*/double, /*Arg=*/double>();
908   test_single_arg</*PromoteResult=*/long double, /*Arg=*/long double>();
909 
910   types::for_each(types::integral_types(), CallTwoArgs());
911 
912   types::for_each(
913       types::integral_types(), test_two_args</*PromoteResult=*/long double, /*Arg1=*/void, /*Arg2=*/long double>());
914 
915   test_two_args</*PromoteResult=*/float, /*Args=*/float, float>();
916   test_two_args</*PromoteResult=*/float, /*Args=*/double, double>();
917   test_two_args</*PromoteResult=*/double, /*Args=*/float, double>();
918   test_two_args</*PromoteResult=*/double, /*Args=*/double, double>();
919 
920   types::for_each(types::integral_types(), CallThreeArgs<double>());
921   types::for_each(
922       types::integral_types(), test_three_args</*PromoteResult=*/long double, /*Iterate*/ void, long double, double>());
923 
924   test_three_args</*PromoteResult=*/float, /*Args=*/float, float, float>();
925   test_three_args</*PromoteResult=*/double, /*Args=*/double, double, double>();
926   test_three_args</*PromoteResult=*/long double, /*Args=*/long double, long double, long double>();
927 
928   test_abs();
929   test_acos();
930   test_asin();
931   test_atan();
932   test_atan2();
933   test_ceil();
934   test_cos();
935   test_cosh();
936   test_exp();
937   test_fabs();
938   test_floor();
939   test_fmod();
940   test_frexp();
941   test_ldexp();
942   test_log();
943   test_log10();
944   test_modf();
945   test_pow();
946   test_sin();
947   test_sinh();
948   test_sqrt();
949   test_tan();
950   test_tanh();
951   test_signbit();
952   test_fpclassify();
953   test_isfinite();
954   test_isnormal();
955   test_isgreater();
956   test_isgreaterequal();
957   test_isinf();
958   test_isless();
959   test_islessequal();
960   test_islessgreater();
961   test_isnan();
962   test_isunordered();
963   test_acosh();
964   test_asinh();
965   test_atanh();
966   test_cbrt();
967   test_copysign();
968   test_erf();
969   test_erfc();
970   test_exp2();
971   test_expm1();
972   test_fdim();
973   test_fma();
974   test_fmax();
975   test_fmin();
976   test_hypot();
977   test_ilogb();
978   test_lgamma();
979   test_llrint();
980   test_llround();
981   test_log1p();
982   test_log2();
983   test_logb();
984   test_lrint();
985   test_lround();
986   test_nan();
987   test_nearbyint();
988   test_nextafter();
989   test_nexttoward();
990   test_remainder();
991   test_remquo();
992   test_rint();
993   test_round();
994   test_scalbln();
995   test_scalbn();
996   test_tgamma();
997   test_trunc();
998 
999   return 0;
1000 }
1001