Barry Smith <bsm...@mcs.anl.gov> writes: > How about the attached patch for getting PETSc built for complex > in either C or C++ to work in the other language as well?
I like it and now I notice that PETSC_CLANGUAGE_CXX now appears in only one place (CHKERRCXX), which I hope we can also change to __cplusplus. Somehow I was hung up on std::complex being a non-POD type, but this commit is fairly orthogonal. There is no std::complex<__float128>, but as far as I'm concerned, that's what people get if they try to use C++. We could use __complex128 even in C++ mode, but I could see this breaking in more confusing ways.
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