Custom error message for stack overflow in C++

[FlatAssembler]

That requires making use of things like shared_ptr<> rather than copying large objects into new variables (it also helps with performance).

I notice that every TreeNode generates some data which looks like it is the same for all instances.  That is wasteful - it should be static and initialized statically.  That also causes much less data to be copied.

Damned pointers, I was never good with them.

I have tried using static fields, but the linker keeps complaining then. I do not know enough C++ to figure out why.

Maybe you can fork me on GitHub to fix those things?