From 70d9d290ef1b57b624783ff32f2b9abffed04b18 Mon Sep 17 00:00:00 2001
From: Salavat <abdullin@mail.cern.ch>
Date: Tue, 20 Jul 2021 12:08:10 +0200
Subject: [PATCH] clang warning fix

---
 .../plugins/HcalForwardLibWriter.cc           | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/SimG4CMS/ShowerLibraryProducer/plugins/HcalForwardLibWriter.cc b/SimG4CMS/ShowerLibraryProducer/plugins/HcalForwardLibWriter.cc
index 539022904c5fb..7a596ce778b1e 100644
--- a/SimG4CMS/ShowerLibraryProducer/plugins/HcalForwardLibWriter.cc
+++ b/SimG4CMS/ShowerLibraryProducer/plugins/HcalForwardLibWriter.cc
@@ -48,12 +48,19 @@ void HcalForwardLibWriter::analyze(const edm::Event& iEvent, const edm::EventSet
     TFile* theFile = new TFile(fn.c_str(), "READ");
     TTree* theTree = (TTree*)gDirectory->Get("g4SimHits/CherenkovPhotons");
     int nphot = 0;
-    float x[nshowers] = {0.};
-    float y[nshowers] = {0.};
-    float z[nshowers] = {0.};
-    float t[nshowers] = {0.};
-    float lambda[nshowers] = {0.};
-    int fiberId[nshowers] = {0};
+
+    const int size = 10000;
+    if (nshowers > size) {
+      edm::LogError("HcalForwardLibWriter") << "Too big Nshowers number";
+      return;
+    }
+
+    float x[size] = {0.};
+    float y[size] = {0.};
+    float z[size] = {0.};
+    float t[size] = {0.};
+    float lambda[size] = {0.};
+    int fiberId[size] = {0};
     float primZ;  // added
 
     theTree->SetBranchAddress("nphot", &nphot);