1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 // <complex>
11
12 // template<class T>
13 // complex<T>
14 // asinh(const complex<T>& x);
15
16 #include <complex>
17 #include <cassert>
18
19 #include "../cases.h"
20
21 template <class T>
22 void
test(const std::complex<T> & c,std::complex<T> x)23 test(const std::complex<T>& c, std::complex<T> x)
24 {
25 assert(asinh(c) == x);
26 }
27
28 template <class T>
29 void
test()30 test()
31 {
32 test(std::complex<T>(0, 0), std::complex<T>(0, 0));
33 }
34
test_edges()35 void test_edges()
36 {
37 typedef std::complex<double> C;
38 const double pi = std::atan2(+0., -0.);
39 const unsigned N = sizeof(x) / sizeof(x[0]);
40 for (unsigned i = 0; i < N; ++i)
41 {
42 std::complex<double> r = asinh(x[i]);
43 if (x[i].real() == 0 && x[i].imag() == 0)
44 {
45 assert(std::signbit(r.real()) == std::signbit(x[i].real()));
46 assert(std::signbit(r.imag()) == std::signbit(x[i].imag()));
47 }
48 else if (std::isfinite(x[i].real()) && std::isinf(x[i].imag()))
49 {
50 assert(std::isinf(r.real()));
51 assert(std::signbit(x[i].real()) == std::signbit(r.real()));
52 if (std::signbit(x[i].imag()))
53 is_about(r.imag(), -pi/2);
54 else
55 is_about(r.imag(), pi/2);
56 }
57 else if (std::isfinite(x[i].real()) && std::isnan(x[i].imag()))
58 {
59 assert(std::isnan(r.real()));
60 assert(std::isnan(r.imag()));
61 }
62 else if (std::isinf(x[i].real()) && std::isfinite(x[i].imag()))
63 {
64 assert(std::isinf(r.real()));
65 assert(std::signbit(x[i].real()) == std::signbit(r.real()));
66 assert(r.imag() == 0);
67 assert(std::signbit(x[i].imag()) == std::signbit(r.imag()));
68 }
69 else if (std::isinf(x[i].real()) && std::isinf(x[i].imag()))
70 {
71 assert(std::isinf(r.real()));
72 assert(std::signbit(x[i].real()) == std::signbit(r.real()));
73 if (std::signbit(x[i].imag()))
74 is_about(r.imag(), -pi/4);
75 else
76 is_about(r.imag(), pi/4);
77 }
78 else if (std::isinf(x[i].real()) && std::isnan(x[i].imag()))
79 {
80 assert(std::isinf(r.real()));
81 assert(std::signbit(x[i].real()) == std::signbit(r.real()));
82 assert(std::isnan(r.imag()));
83 }
84 else if (std::isnan(x[i].real()) && x[i].imag() == 0)
85 {
86 assert(std::isnan(r.real()));
87 assert(r.imag() == 0);
88 assert(std::signbit(x[i].imag()) == std::signbit(r.imag()));
89 }
90 else if (std::isnan(x[i].real()) && std::isfinite(x[i].imag()))
91 {
92 assert(std::isnan(r.real()));
93 assert(std::isnan(r.imag()));
94 }
95 else if (std::isnan(x[i].real()) && std::isinf(x[i].imag()))
96 {
97 assert(std::isinf(r.real()));
98 assert(std::isnan(r.imag()));
99 }
100 else if (std::isnan(x[i].real()) && std::isnan(x[i].imag()))
101 {
102 assert(std::isnan(r.real()));
103 assert(std::isnan(r.imag()));
104 }
105 else
106 {
107 assert(std::signbit(r.real()) == std::signbit(x[i].real()));
108 assert(std::signbit(r.imag()) == std::signbit(x[i].imag()));
109 }
110 }
111 }
112
main()113 int main()
114 {
115 test<float>();
116 test<double>();
117 test<long double>();
118 test_edges();
119 }
120