Error function

ROOT
1

Dear rooters,
In my code, I am checking some matrices if they can be inverted or not.
To do this, I create a TDecompLU object, and then I call the TDecompLU::Decompose() method which returns true or false.
The TDecompLU::Decompose() method, calls another one method, the TDecompLU::DecomposeLUCrout.
This method, also returns a bool value but it if the matrix is not Decomposable, it calls the Error function http://root.cern.ch/root/html534/src/TObject.cxx.html#yeZXGE

Now, the above procedure is done inside the CMSSW and the problem is that when this Error function is called, cmsRun stops, producing this error:

----- Begin Fatal Exception 07-Nov-2013 12:55:11 EET----------------------- An exception of category 'FatalRootError' occurred while [0] Processing run: 206401 lumi: 91 event: 77266572 [1] Running path 'p' [2] Calling event method for module cmgMultijetSearchTree_KinFitter_KinematicFit/'Multijets' Exception Message: Fatal Root Error: @SUB=TDecompLU::DecomposeLUCrout matrix is singular ----- End Fatal Exception -------------------------------------------------

So, I would like to ask you if there is any way to “stop” this error function, or to make this function “quiet” ?

Thank you in advance!

2

Dear rooters,
I solved the problem by doing this:

try
{
    lu.Decompose();
}
catch (...)
{
    decomp_flag = true;
}