Re: name for histograms

From: OKUMURA, Akira <oxon_at_icrr.u-tokyo.ac.jp>
Date: Mon, 26 Jun 2006 23:19:48 +0900


Hello Brett,

Thank you very much.

Could you tell me demerits of using
> hist->SetDirectory(0);

if any.

I do not understand why only histogram (and some other class) uses special 'owner' system. In other words, I do not know the merit of being owned by a directory.

Sincerely,

OKUMURA, Akira oxon_at_icrr.u-tokyo.ac.jp
Institute for Cosmic Ray Research, University of Tokyo 5-1-5 Kashiwanoha Kashiwa Chiba 277-8582 Japan Phone/Fax : +81 4-7136-3153
Skype : okumura.akira

On 2006/06/15, at 23:23, Brett Viren wrote:

> "OKUMURA, Akira" <oxon_at_icrr.u-tokyo.ac.jp> writes:
>
>> If I make a class which has histogram as a member as below, at the
>> line of declaration of 'MyClass b' ROOT warns 'Potential memory
>> leak'.
>
> If you don't want ROOT to track your histograms (which is what is
> behind this "Potential memory leak" message) then call
>
> hist->SetDirectory(0);
>
> after you create it.
>
> -Brett.
>
>
Received on Mon Jun 26 2006 - 16:20:02 MEST

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