From Andrei:

some fixes for some array access violations in pcon, pgon and xtru spotted by Federico. Some protections were missing in correlation of the usage of TMath::BinarySearch() (numeric exception cases on boundaries).


git-svn-id: http://root.cern.ch/svn/root/trunk@20341 27541ba8-7e3a-0410-8455-c3a389f83636