what is the gko::remove_complex<ValueType>?

[ztdepztdep]

I have noticed that there is a data type gko::remove_complex, could you pleaes provide some infors about this type?

[upsj]

This is not a data type, but an alias template that essentially does two things:

• For value types like double and std::complex<float>, it turns complex types into their underlying type (i.e. std::complex<double> into double), and leaves other types like double unchanged.
• For template types like Dense<ValueType>, it turns Dense<std::complex<double>> into Dense<double>, i.e. applying remove_complex to the first template parameter.

But I have a general request for you: Please only use issues for things that are broken. If you have a question about Ginkgo, that's perfectly fine, but we use the Q&A discussion section for those. I already moved a few of your issues into the Q&A section.