42         if (testcases[i].real() == 0 && testcases[i].imag() == 0)  in test_edges()
45             if (std::signbit(testcases[i].imag()))  in test_edges()
46                 is_about(r.imag(), -pi/2);  in test_edges()
48                 is_about(r.imag(),  pi/2);  in test_edges()
50         else if (testcases[i].real() == 1 && testcases[i].imag() == 0)  in test_edges()
54             assert(r.imag() == 0);  in test_edges()
55             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()
57         else if (testcases[i].real() == -1 && testcases[i].imag() == 0)  in test_edges()
61             if (std::signbit(testcases[i].imag()))  in test_edges()
62                 is_about(r.imag(), -pi);  in test_edges()
64                 is_about(r.imag(),  pi);  in test_edges()
66         else if (std::isfinite(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
70             if (std::signbit(testcases[i].imag()))  in test_edges()
71                 is_about(r.imag(), -pi/2);  in test_edges()
73                 is_about(r.imag(),  pi/2);  in test_edges()
75         else if (std::isfinite(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
78             assert(std::isnan(r.imag()));  in test_edges()
80 … (std::isinf(testcases[i].real()) && testcases[i].real() < 0 && std::isfinite(testcases[i].imag()))  in test_edges()
84             if (std::signbit(testcases[i].imag()))  in test_edges()
85                 is_about(r.imag(), -pi);  in test_edges()
87                 is_about(r.imag(),  pi);  in test_edges()
89 … (std::isinf(testcases[i].real()) && testcases[i].real() > 0 && std::isfinite(testcases[i].imag()))  in test_edges()
93             assert(r.imag() == 0);  in test_edges()
94             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()
96 … if (std::isinf(testcases[i].real()) && testcases[i].real() < 0 && std::isinf(testcases[i].imag()))  in test_edges()
100             if (std::signbit(testcases[i].imag()))  in test_edges()
101                 is_about(r.imag(), -0.75 * pi);  in test_edges()
103                 is_about(r.imag(),  0.75 * pi);  in test_edges()
105 … if (std::isinf(testcases[i].real()) && testcases[i].real() > 0 && std::isinf(testcases[i].imag()))  in test_edges()
109             if (std::signbit(testcases[i].imag()))  in test_edges()
110                 is_about(r.imag(), -0.25 * pi);  in test_edges()
112                 is_about(r.imag(),  0.25 * pi);  in test_edges()
114         else if (std::isinf(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
118             assert(std::isnan(r.imag()));  in test_edges()
120         else if (std::isnan(testcases[i].real()) && std::isfinite(testcases[i].imag()))  in test_edges()
123             assert(std::isnan(r.imag()));  in test_edges()
125         else if (std::isnan(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
129             assert(std::isnan(r.imag()));  in test_edges()
131         else if (std::isnan(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
134             assert(std::isnan(r.imag()));  in test_edges()
139             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()