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 // XFAIL: LIBCXX-AIX-FIXME
10 
11 // <complex>
12 
13 // template<class T>
14 //   complex<T>
15 //   log10(const complex<T>& x);
16 
17 #include <complex>
18 #include <cassert>
19 
20 #include "test_macros.h"
21 #include "../cases.h"
22 
23 template <class T>
24 void
25 test(const std::complex<T>& c, std::complex<T> x)
26 {
27     assert(log10(c) == x);
28 }
29 
30 template <class T>
31 void
32 test()
33 {
34     test(std::complex<T>(0, 0), std::complex<T>(-INFINITY, 0));
35 }
36 
37 void test_edges()
38 {
39     const unsigned N = sizeof(testcases) / sizeof(testcases[0]);
40     for (unsigned i = 0; i < N; ++i)
41     {
42         std::complex<double> r = log10(testcases[i]);
43         std::complex<double> z = log(testcases[i])/std::log(10);
44         if (std::isnan(real(r)))
45             assert(std::isnan(real(z)));
46         else
47         {
48             assert(real(r) == real(z));
49             assert(std::signbit(real(r)) == std::signbit(real(z)));
50         }
51         if (std::isnan(imag(r)))
52             assert(std::isnan(imag(z)));
53         else
54         {
55             assert(imag(r) == imag(z));
56             assert(std::signbit(imag(r)) == std::signbit(imag(z)));
57         }
58     }
59 }
60 
61 int main(int, char**)
62 {
63     test<float>();
64     test<double>();
65     test<long double>();
66     test_edges();
67 
68   return 0;
69 }
70