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      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 //   sinh(const complex<T>& x);
     15 
     16 #include <complex>
     17 #include <cassert>
     18 
     19 #include "../cases.h"
     20 
     21 template <class T>
     22 void
     23 test(const std::complex<T>& c, std::complex<T> x)
     24 {
     25     assert(sinh(c) == x);
     26 }
     27 
     28 template <class T>
     29 void
     30 test()
     31 {
     32     test(std::complex<T>(0, 0), std::complex<T>(0, 0));
     33 }
     34 
     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 = sinh(x[i]);
     43         if (x[i].real() == 0 && x[i].imag() == 0)
     44         {
     45             assert(r.real() == 0);
     46             assert(std::signbit(r.real()) == std::signbit(x[i].real()));
     47             assert(r.imag() == 0);
     48             assert(std::signbit(r.imag()) == std::signbit(x[i].imag()));
     49         }
     50         else if (x[i].real() == 0 && std::isinf(x[i].imag()))
     51         {
     52             assert(r.real() == 0);
     53             assert(std::isnan(r.imag()));
     54         }
     55         else if (std::isfinite(x[i].real()) && std::isinf(x[i].imag()))
     56         {
     57             assert(std::isnan(r.real()));
     58             assert(std::isnan(r.imag()));
     59         }
     60         else if (x[i].real() == 0 && std::isnan(x[i].imag()))
     61         {
     62             assert(r.real() == 0);
     63             assert(std::isnan(r.imag()));
     64         }
     65         else if (std::isfinite(x[i].real()) && std::isnan(x[i].imag()))
     66         {
     67             assert(std::isnan(r.real()));
     68             assert(std::isnan(r.imag()));
     69         }
     70         else if (std::isinf(x[i].real()) && x[i].imag() == 0)
     71         {
     72             assert(std::isinf(r.real()));
     73             assert(std::signbit(r.real()) == std::signbit(x[i].real()));
     74             assert(r.imag() == 0);
     75             assert(std::signbit(r.imag()) == std::signbit(x[i].imag()));
     76         }
     77         else if (std::isinf(x[i].real()) && std::isfinite(x[i].imag()))
     78         {
     79             assert(std::isinf(r.real()));
     80             assert(std::signbit(r.real()) == std::signbit(x[i].real() * cos(x[i].imag())));
     81             assert(std::isinf(r.imag()));
     82             assert(std::signbit(r.imag()) == std::signbit(sin(x[i].imag())));
     83         }
     84         else if (std::isinf(x[i].real()) && std::isinf(x[i].imag()))
     85         {
     86             assert(std::isinf(r.real()));
     87             assert(std::isnan(r.imag()));
     88         }
     89         else if (std::isinf(x[i].real()) && std::isnan(x[i].imag()))
     90         {
     91             assert(std::isinf(r.real()));
     92             assert(std::isnan(r.imag()));
     93         }
     94         else if (std::isnan(x[i].real()) && x[i].imag() == 0)
     95         {
     96             assert(std::isnan(r.real()));
     97             assert(r.imag() == 0);
     98             assert(std::signbit(r.imag()) == std::signbit(x[i].imag()));
     99         }
    100         else if (std::isnan(x[i].real()) && std::isfinite(x[i].imag()))
    101         {
    102             assert(std::isnan(r.real()));
    103             assert(std::isnan(r.imag()));
    104         }
    105         else if (std::isnan(x[i].real()) && std::isnan(x[i].imag()))
    106         {
    107             assert(std::isnan(r.real()));
    108             assert(std::isnan(r.imag()));
    109         }
    110     }
    111 }
    112 
    113 int main()
    114 {
    115     test<float>();
    116     test<double>();
    117     test<long double>();
    118     test_edges();
    119 }
    120