From c6cb057a8dfa2771c9f92b0a88d1c752b7fd0592 Mon Sep 17 00:00:00 2001
From: scott snyder <snyder@bnl.gov>
Date: Wed, 17 Oct 2018 16:37:26 +0200
Subject: [PATCH] VP1TrackSystems: Fix gcc8 warning.
gcc8 warning: Catching polymorphic exception by value.
---
.../VP1Systems/VP1TrackSystems/src/TrackPropagationHelper.cxx | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/graphics/VP1/VP1Systems/VP1TrackSystems/src/TrackPropagationHelper.cxx b/graphics/VP1/VP1Systems/VP1TrackSystems/src/TrackPropagationHelper.cxx
index 7442bf505ae6..e6a4fbd91db4 100644
--- a/graphics/VP1/VP1Systems/VP1TrackSystems/src/TrackPropagationHelper.cxx
+++ b/graphics/VP1/VP1Systems/VP1TrackSystems/src/TrackPropagationHelper.cxx
@@ -1,5 +1,5 @@
/*
- Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+ Copyright (C) 2002-2018 CERN for the benefit of the ATLAS collaboration
*/
@@ -386,7 +386,7 @@ const Trk::TrackParameters * TrackPropagationHelper::Imp::extrapolateToNewPar( T
try {
// newpars = extrapolator->extrapolate(*trk,surf,Trk::anyDirection,false,hypo); // change this to extrapolate current param to surface.
newpars = extrapolator->extrapolate(*prevpars,surf,Trk::alongMomentum,false,hypo); // change this to extrapolate current param to surface.
- } catch (std::runtime_error e) {
+ } catch (const std::runtime_error& e) {
theclass->message("Failure trying to use extrapolator for track (Exception thrown: " + QString(e.what())+")");
return 0;
}
--
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