From 323eca77ac7e365f96eca5392587434598c9cb54 Mon Sep 17 00:00:00 2001
From: Eric Cano <eric.cano@cern.ch>
Date: Mon, 12 Apr 2021 11:39:30 +0200
Subject: [PATCH] Returned complex strcuture by reference instead of value.

Also made the type explicit.
https://github.com/cms-patatrack/cmssw/pull/615#discussion_r611021950
---
 CUDADataFormats/Track/interface/TrackSoAHeterogeneousT.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CUDADataFormats/Track/interface/TrackSoAHeterogeneousT.h b/CUDADataFormats/Track/interface/TrackSoAHeterogeneousT.h
index 8daf780644749..003d1d184f845 100644
--- a/CUDADataFormats/Track/interface/TrackSoAHeterogeneousT.h
+++ b/CUDADataFormats/Track/interface/TrackSoAHeterogeneousT.h
@@ -31,8 +31,8 @@ class TrackSoAHeterogeneousT {
   constexpr auto chi2(int32_t i) const { return chi2_(i); }
 
   // stateAtBS accessors
-  constexpr auto & stateAtBS() { return stateAtBS_; }
-  constexpr auto stateAtBS() const { return stateAtBS_; }
+  constexpr TrajectoryStateSoAT<S> & stateAtBS() { return stateAtBS_; }
+  constexpr TrajectoryStateSoAT<S> const & stateAtBS() const { return stateAtBS_; }
   // eta accessors
   constexpr auto & eta(int32_t i) { return eta_(i); }
   constexpr auto eta(int32_t i) const { return eta_(i); }