RE: root 4.04/02 possible bugs and suggestions

Hi Thomas,

We just updated the ROOT code to remove the use of BIT(17) in TTree. It turns out that this single bit was anyway insufficient to properly implemented the mechanism that needed it.

We will create a branch in the CVS repository to add this patch to the ROOT 4.04.xx source.

Cheers,
Philippe.

-----Original Message-----
From: owner-roottalk_at_pcroot.cern.ch [mailto:owner-roottalk_at_pcroot.cern.ch] On Behalf Of Thomas Bretz
Sent: Monday, May 09, 2005 5:40 AM
To: roottalk_at_pcroot.cern.ch
Subject: [ROOT] root 4.04/02 possible bugs and suggestions

Dear all,

using the new pro-version with our analysis software I found a lot of stuff, which I like to tell you:

• In TTree you are using a BIT(17) for internal usage. In TObject you say BIT(14)-BIT(23) are reserved for users use. I now have used already BIT(17) for something different. This results in old files (10TB) we have written being incompatible with root 4.04. I have changed it now to BIT(23) for the future. How can I manage to read this old files (without patching root). This BIT(17) is for internal use only. Maybe you can replace it by a bool (with //!) ?

... issue regargind graphics and other stuff omitted ...

BTW: Independant of all critics: root 4.04/02 seems to work very well and behaves stable. I like the new version!

Best regards,
Thomas. Received on Fri May 13 2005 - 19:55:41 MEST