43         if (testcases[i].real() == 0 && testcases[i].imag() == 0)  in test_edges()
46             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()
48         else if (std::isfinite(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
52             if (std::signbit(testcases[i].imag()))  in test_edges()
53                 is_about(r.imag(), -pi/2);  in test_edges()
55                 is_about(r.imag(),  pi/2);  in test_edges()
57         else if (std::isfinite(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
60             assert(std::isnan(r.imag()));  in test_edges()
62         else if (std::isinf(testcases[i].real()) && std::isfinite(testcases[i].imag()))  in test_edges()
66             assert(r.imag() == 0);  in test_edges()
67             assert(std::signbit(testcases[i].imag()) == std::signbit(r.imag()));  in test_edges()
69         else if (std::isinf(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
73             if (std::signbit(testcases[i].imag()))  in test_edges()
74                 is_about(r.imag(), -pi/4);  in test_edges()
76                 is_about(r.imag(),  pi/4);  in test_edges()
78         else if (std::isinf(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
82             assert(std::isnan(r.imag()));  in test_edges()
84         else if (std::isnan(testcases[i].real()) && testcases[i].imag() == 0)  in test_edges()
87             assert(r.imag() == 0);  in test_edges()
88             assert(std::signbit(testcases[i].imag()) == std::signbit(r.imag()));  in test_edges()
90         else if (std::isnan(testcases[i].real()) && std::isfinite(testcases[i].imag()))  in test_edges()
93             assert(std::isnan(r.imag()));  in test_edges()
95         else if (std::isnan(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
98             assert(std::isnan(r.imag()));  in test_edges()
100         else if (std::isnan(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
103             assert(std::isnan(r.imag()));  in test_edges()
108             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()