> For example, I like static data structures, especially in C. But in C++ they are unidiomatic. How do you statically initialize (in the rdata / rodata segment) an object graph (even as simple as a tree) with zero-copying at runtime?

How do you do that in C? Does unidiomatic mean you can't do it? Interesting challenge.

That's also an interestingly-sized data structure. Apparently big enough that the initialization time is a performance concern, but small enough to be able to lay out statically and not burden your binary size.