47             assert(std::signbit(x[i].imag()) != std::signbit(r.imag()));  in test_edges()
58             assert(std::signbit(x[i].imag()) != std::signbit(r.imag()));  in test_edges()
69             assert(std::signbit(x[i].imag()) != std::signbit(r.imag()));  in test_edges()
74             assert(!std::signbit(r.real()));  in test_edges()
76             assert(std::signbit(x[i].imag()) != std::signbit(r.imag()));  in test_edges()
82             assert(std::signbit(x[i].imag()) != std::signbit(r.imag()));  in test_edges()
88             assert(std::signbit(x[i].imag()) != std::signbit(r.imag()));  in test_edges()
104             assert(std::signbit(x[i].imag()) != std::signbit(r.imag()));  in test_edges()
111         else if (!std::signbit(x[i].real()) && !std::signbit(x[i].imag()))  in test_edges()
113             assert(!std::signbit(r.real()));  in test_edges()
114             assert( std::signbit(r.imag()));  in test_edges()
116         else if (std::signbit(x[i].real()) && !std::signbit(x[i].imag()))  in test_edges()
118             assert(!std::signbit(r.real()));  in test_edges()
119             assert( std::signbit(r.imag()));  in test_edges()
121         else if (std::signbit(x[i].real()) && std::signbit(x[i].imag()))  in test_edges()
123             assert(!std::signbit(r.real()));  in test_edges()
124             assert(!std::signbit(r.imag()));  in test_edges()
126         else if (!std::signbit(x[i].real()) && std::signbit(x[i].imag()))  in test_edges()
128             assert(!std::signbit(r.real()));  in test_edges()
129             assert(!std::signbit(r.imag()));  in test_edges()