Hi, having fixed the Npoints const issue (and saving the macro as .c instead of .cpp) I still cannot reproduce the compliler errors you show above. Is it likely this may be due to differening operating systems/subversions of root 5? (In fact I get identical errors to the unchanged code).
Could this also be due to something not being build properly (other than my macro 
), I’m running through binaries but have still had to build the test directory before to get some things to work.