42         if (testcases[i].real() == 0 && testcases[i].imag() == 0)  in test_edges()
46             assert(r.imag() == 0);  in test_edges()
47             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()
49         else if (std::isfinite(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
52             assert(std::isnan(r.imag()));  in test_edges()
54         else if (std::isfinite(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
57             assert(std::isnan(r.imag()));  in test_edges()
59         else if (std::isinf(testcases[i].real()) && std::isfinite(testcases[i].imag()))  in test_edges()
62             assert(r.imag() == 0);  in test_edges()
63             assert(std::signbit(r.imag()) == std::signbit(sin(2*testcases[i].imag())));  in test_edges()
65         else if (std::isinf(testcases[i].real()) && std::isinf(testcases[i].imag()))  in test_edges()
68             assert(r.imag() == 0);  in test_edges()
70         else if (std::isinf(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
73             assert(r.imag() == 0);  in test_edges()
75         else if (std::isnan(testcases[i].real()) && testcases[i].imag() == 0)  in test_edges()
78             assert(r.imag() == 0);  in test_edges()
79             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()
81         else if (std::isnan(testcases[i].real()) && std::isfinite(testcases[i].imag()))  in test_edges()
84             assert(std::isnan(r.imag()));  in test_edges()
86         else if (std::isnan(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
89             assert(std::isnan(r.imag()));  in test_edges()