From ed85b4ccecf9d56bd4bc2c5120a8cb13acbe9d19 Mon Sep 17 00:00:00 2001
From: Giulio Eulisse <10544+ktf@users.noreply.github.com>
Date: Thu, 15 Aug 2024 21:44:03 +0200
Subject: [PATCH] Avoid doing one iteration when the tree has no entries
 (#13388)

---
 Detectors/EMCAL/simulation/src/RawCreator.cxx | 2 +-
 Detectors/PHOS/simulation/src/RawCreator.cxx  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Detectors/EMCAL/simulation/src/RawCreator.cxx b/Detectors/EMCAL/simulation/src/RawCreator.cxx
index 883d907b8858e..386602e32b91c 100644
--- a/Detectors/EMCAL/simulation/src/RawCreator.cxx
+++ b/Detectors/EMCAL/simulation/src/RawCreator.cxx
@@ -122,7 +122,7 @@ int main(int argc, const char** argv)
   rawwriter.init();
 
   // Loop over all entries in the tree, where each tree entry corresponds to a time frame
-  for (auto en : *treereader) {
+  while (treereader->Next()) {
     rawwriter.digitsToRaw(*digitbranch, *triggerbranch);
   }
   rawwriter.getWriter().writeConfFile("EMC", "RAWDATA", o2::utils::Str::concat_string(outputdir, "/EMCraw.cfg"));
diff --git a/Detectors/PHOS/simulation/src/RawCreator.cxx b/Detectors/PHOS/simulation/src/RawCreator.cxx
index 620c9f4def2be..de8bd53741572 100644
--- a/Detectors/PHOS/simulation/src/RawCreator.cxx
+++ b/Detectors/PHOS/simulation/src/RawCreator.cxx
@@ -109,7 +109,7 @@ int main(int argc, const char** argv)
   rawwriter.init();
 
   // Loop over all entries in the tree, where each tree entry corresponds to a time frame
-  for (auto en : *treereader) {
+  while (treereader->Next()) {
     rawwriter.digitsToRaw(*digitbranch, *triggerbranch);
   }
   rawwriter.getWriter().writeConfFile("PHS", "RAWDATA", o2::utils::Str::concat_string(outputdir, "/PHSraw.cfg"));