Well, before it was "any complex program contains bug-ridden implementation of Lisp", and now it's "any C++ program invents verbose Haskel". But seriously, whi

Well, before it was "any complex program contains bug-ridden implementation of Lisp", and now it's "any C++ program invents verbose Haskel". But seriously, while this is toy example, it demonstrates what perhaps will be viable for standard library or for the future language features. Have you tried to read STL implementation code? - it's pretty incomprehensible, but it's still extremely useful library.