bomben
November 3, 2017, 2:50pm
1
Dear all,
what I want to report is a rather annoying feature (if not a bug):
$ root
------------------------------------------------------------
| Welcome to ROOT 6.11/01 http://root.cern.ch |
| (c) 1995-2017, The ROOT Team |
| Built for macosx64 |
| From tag v6-09-02-2657-g9339de9e64, 18 May 2017 |
| Try '.help', '.demo', '.license', '.credits', '.quit'/'.q' |
------------------------------------------------------------
Applying ATLAS style settings...
root [0] double Cdep = 1.65428e-12
(double) 0.000000
root [1] Cdep
(double) 0.000000
root [2] Cdep/1e-12
(double) 1.654280
Is it normal that my variable is presented as consistent with 0?
Luckily the correct value it is still there.
Am I missing something?
Best regards,
Marco Bomben
couet
November 3, 2017, 3:33pm
2
$ root
----------------------------------------------------------------
| Welcome to ROOT 6.11/03 http://root.cern.ch |
| (c) 1995-2017, The ROOT Team |
| Built for macosx64 |
| From heads/master@v6-11-02-590-g814f647, Nov 03 2017, 15:38:50 |
| Try '.help', '.demo', '.license', '.credits', '.quit'/'.q' |
----------------------------------------------------------------
root [0] double Cdep = 1.65428e-12;
root [1] printf("%g\n",Cdep);
1.65428e-12
root [2]
bomben
November 3, 2017, 4:04pm
3
Thanks. Still rather annoying in my opinion.
Regards,
Marco Bomben
couet
November 3, 2017, 4:05pm
4
ROOT command line is interpreted C++ . You should type C++.
1 Like
bomben
November 3, 2017, 4:24pm
5
I see, but few months ago it was different:
$ root
------------------------------------------------------------
| Welcome to ROOT 6.08/06 http://root.cern.ch |
| (c) 1995-2016, The ROOT Team |
| Built for linuxx8664gcc |
| From tag v6-08-06, 2 March 2017 |
| Try '.help', '.demo', '.license', '.credits', '.quit'/'.q' |
------------------------------------------------------------
root [0] double Cdep = 1.6e-12
(double) 1.60000e-12
root [1] Cdep
(double) 1.60000e-12
root [2]
couet
November 3, 2017, 4:38pm
6
Ok. I am sure @Axel tell more about it.
tbis
November 3, 2017, 5:07pm
7
I guess it’s due to this change:
to:
To be honest, it would be great to have something like std::setprecision for the output stream within cling, but the implementation seems to work with normal strings and not streams which seems a bit unfortunate
Axel
November 3, 2017, 8:24pm
8
I agree that’s bad; I’ll fix it at least for 6.12: https://github.com/root-project/root/pull/1278
If you want setprecision
just use it You can always use printf
or the iostream manipulators from the prompt. But we should still get the default right and sensible.
2 Likes
bomben
November 4, 2017, 8:12am
9
Thanks a lot you all for the feedback!
Best regards,
Marco Bomben
system
Closed
November 18, 2017, 8:13am
10
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