https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70246
--- Comment #4 from Mike Jarvis <michael at jarvis dot net> --- Created attachment 37984 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37984&action=edit An alternate source that uses a custom Complex class OK, here is a version that rolls its own Complex class, rather than using the standard library's complex<double>. I stripped out the parts of that that aren't relevant for this, so hopefully this is small enough for you. A possible clue is that the warning goes away if Complex is implemented in terms of double _x and double _y (as the normal template version of std::complex does) rather than __complex__ double _z (as the specialization std::complex<double> does).
