42         if (testcases[i].real() == 0 && testcases[i].imag() == 0)  in test_edges()
45             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()
47         else if (testcases[i].real() == 0 && std::abs(testcases[i].imag()) == 1)  in test_edges()
50             assert(std::signbit(testcases[i].imag()) == std::signbit(r.imag()));  in test_edges()
51             if (std::signbit(testcases[i].imag()))  in test_edges()
52                 is_about(r.imag(), -pi/2);  in test_edges()
54                 is_about(r.imag(),  pi/2);  in test_edges()
56         else if (std::isfinite(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
60             if (std::signbit(testcases[i].imag()))  in test_edges()
61                 is_about(r.imag(), -pi/2);  in test_edges()
63                 is_about(r.imag(),  pi/2);  in test_edges()
65         else if (std::isfinite(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
68             assert(std::isnan(r.imag()));  in test_edges()
70         else if (std::isinf(testcases[i].real()) && std::isfinite(testcases[i].imag()))  in test_edges()
74             assert(r.imag() == 0);  in test_edges()
75             assert(std::signbit(testcases[i].imag()) == std::signbit(r.imag()));  in test_edges()
77         else if (std::isinf(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
81             if (std::signbit(testcases[i].imag()))  in test_edges()
82                 is_about(r.imag(), -pi/4);  in test_edges()
84                 is_about(r.imag(),  pi/4);  in test_edges()
86         else if (std::isinf(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
90             assert(std::isnan(r.imag()));  in test_edges()
92         else if (std::isnan(testcases[i].real()) && testcases[i].imag() == 0)  in test_edges()
95             assert(r.imag() == 0);  in test_edges()
96             assert(std::signbit(testcases[i].imag()) == std::signbit(r.imag()));  in test_edges()
98         else if (std::isnan(testcases[i].real()) && std::isfinite(testcases[i].imag()))  in test_edges()
101             assert(std::isnan(r.imag()));  in test_edges()
103         else if (std::isnan(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
106             assert(std::isnan(r.imag()));  in test_edges()
108         else if (std::isnan(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
111             assert(std::isnan(r.imag()));  in test_edges()
116             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()