Background

ROOT is implementing new interfaces following new interface styles. We follow C++ Core Guidelines where reasonable in our context. Most noticeably this means

When the C++ committee met in Jacksonville two months ago, something big happened: the reflection study group, SG7, decided what the basic “language" of reflected C++ should look like. What does that mean? Why do you care? Let me, the co-author of the only “blessed proposal", explain:

Almost everyone agrees that C++ needs a facility to query C++ code itself: types, functions, data members etc. And that this facility should be a compile time facility, at least as a start. But what should it look like?

Hi,

It's time to resume this blog - on what the ROOT team is up to; what happens at the C++ meetings; and a bit of behind-the-scenes of cling and ROOT.

We have started to develop towards ROOT 7 and its new interfaces. We will have bi-weekly meetings to discuss some of items relevant for our users - we'd love to have you involved as much as possible! If you are curious then please subscribe to the root7-discussion egroup.

Hi everyone, dear Matt!

Matt Walker has posted an extensive review of ROOT and what he would hope the future of ROOT to be. Because I think many of his comments are good ones, and because I have heard some of them from several people in the past, I decided to give the answer to an audience that's little bit wider, in a dedicated post.

Hi,

A new C++ meeting is coming up in a few days. Many, many proposals are on the table; they can be found here and here. Out of those proposals only very few will be discussed at the meeting; likely only those that are about to make it into C++14.

Hi!

We are running late with ROOT 6, in part because I'm just back at work after being sick for 4 weeks. The other cling team members were hacking away at Fermilab, and I'll demonstrate how major that step to version 6 is for ROOT.

Hi,

Two weeks ago I participated at the ISO C++ standard meeting. It was my and CERN's first one and a pleasant surprise. A few news items:

Hi,

A delegation of the ROOT team (Fons, Vassil and I) have been invited by Google Zurich to give a Tech Talk on cling. We had a great night in Zurich. Great nights always have consequences on the next day - but as "talk quality" and "nightlife fun" are in different dimensions there is no obvious measure for optimizing these two; everyone will have his or her own favorite combination of both. Mine meant Aspirin the next morning.

Hi,

I wish you a relaxing break - be it Christmas, Hanukah, family or presents. All the best for next year: start off with a good party, go on with successful physics and a happy private life! And where applicable, please continue to use ROOT in 2012 ;-)

As a little ROOTy Christmas gift, enjoy this old but still fantastic xkcd episode (read this for explanations):

Hi,

"A ROOT User" asks "Is it really necessary to replace CINT dictionary with cling?", bringing up very reasonable concerns and arguments against re-implementing CINT. I will try to answer his comments to clarify why we do it, and how it connects with the rest.

A fundamental misconception is that the status quo is acceptable. It is not, for several reasons.