39     const unsigned N = sizeof(testcases) / sizeof(testcases[0]);  in test_edges()
42         std::complex<double> r = sqrt(testcases[i]);  in test_edges()
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::isinf(testcases[i].imag()))  in test_edges()
53             assert(std::signbit(r.imag()) == std::signbit(testcases[i].imag()));  in test_edges()
55         else if (std::isfinite(testcases[i].real()) && std::isnan(testcases[i].imag()))  in test_edges()
60 …else if (std::isinf(testcases[i].real()) && testcases[i].real() < 0 && std::isfinite(testcases[i].…  in test_edges()
65             assert(std::signbit(testcases[i].imag()) == std::signbit(r.imag()));  in test_edges()
67 …else if (std::isinf(testcases[i].real()) && testcases[i].real() > 0 && std::isfinite(testcases[i].…  in test_edges()
72             assert(std::signbit(testcases[i].imag()) == std::signbit(r.imag()));  in test_edges()
74 …else if (std::isinf(testcases[i].real()) && testcases[i].real() < 0 && std::isnan(testcases[i].ima…  in test_edges()
79 …else if (std::isinf(testcases[i].real()) && testcases[i].real() > 0 && std::isnan(testcases[i].ima…  in test_edges()
85 …else if (std::isnan(testcases[i].real()) && (std::isfinite(testcases[i].imag()) || std::isnan(test…  in test_edges()
90         else if (std::signbit(testcases[i].imag()))  in test_edges()