RE: problem with Reset in rootlogon file

From: Philippe Canal <pcanal_at_fnal.gov>
Date: Thu, 07 Apr 2005 08:51:00 -0500

Hi Thomas,

What do you need to use gROOT->Reset() in rootlogon? To some extend it is accomplishing what it is should, i.e. wipe out the information loaded in CINT since the last checkpoint (they are check point at the CINT initialization and after the auxiliary file (iostream, rootlogon)
have been loaded.

Cheers,
Philippe.

-----Original Message-----
From: owner-roottalk_at_pcroot.cern.ch [mailto:owner-roottalk_at_pcroot.cern.ch] On Behalf Of Thomas Schietinger
Sent: Thursday, April 07, 2005 7:01 AM
To: roottalk_at_pcroot.cern.ch
Subject: [ROOT] problem with Reset in rootlogon file

Hello,

in ROOT 4.02/00 on slc3, I have a problem when using gROOT->Reset(); in the rootlogon.C script.
I can do

root [0] gROOT->Reset();
root [1] cout << "Hello World" << endl;
Hello World

without problem. But as soon as I move the Reset command into my rootlogon.C script, cout is corrupted:

root [0] cout << "Hello World" << endl;

Error: Symbol cout is not defined in current scope  FILE:(tmpfile) LINE:1
Error: << Illegal operator for pointer 3 FILE:(tmpfile) LINE:1
Error: << Illegal operator for pointer 3 FILE:(tmpfile) LINE:1

*** Interpreter error recovered ***
root [1]

This was produced with the following simple rootlogon.C script: tschieti_at_lxplus009_525>cat rootlogon.C
{
gROOT->Reset();
}

A simple workaround is to use printf() instead of cout, but that's not a good solution as many pre-existing macros contain cout statments.

Thanks for any help,

Thomas

-- 

Received on Thu Apr 07 2005 - 15:50:26 MEST