[Rivet-svn] rivet: protect against null genParticle

[Rivet Mercurial]

details:   https://rivet.hepforge.org/hg/rivet/rev/fe2ecab7f4b0
branches:  
changeset: 6157:fe2ecab7f4b0
user:      Jon Butterworth <j.butterworth at cern.ch>
date:      Sat Nov 25 13:07:26 2017 +0000
description:
protect against null genParticle

diffs (10 lines):

--- a/analyses/pluginATLAS/ATLAS_2014_I1306615.cc	Sat Nov 25 10:18:46 2017 +0000
+++ b/analyses/pluginATLAS/ATLAS_2014_I1306615.cc	Sat Nov 25 13:07:26 2017 +0000
@@ -371,6 +371,7 @@
     // Trace event record to see if particle came from a hadron (or a tau from a hadron decay)
     // Based on fromDecay() function
     bool fromHadronDecay(const Particle& p ) {
+      if (p.genParticle() == NULL) return false;
       const GenVertex* prodVtx = p.genParticle()->production_vertex();
       if (prodVtx == NULL) return false;
       foreach (const GenParticle* ancestor, particles(prodVtx, HepMC::ancestors)) {