ITS: const log func

Author: f3sch

Detectors/ITSMFT/ITS/tracking/include/ITStracking/Tracker.h

@@ -57,7 +57,9 @@ class Tracker
 
   void adoptTimeFrame(TimeFrame& tf);
 
-  void clustersToTracks(LogFunc = [](std::string s) { std::cout << s << std::endl; }, LogFunc = [](std::string s) { std::cerr << s << std::endl; });
+  void clustersToTracks(
+    LogFunc = [](const std::string& s) { std::cout << s << '\n'; },
+    LogFunc = [](const std::string& s) { std::cerr << s << '\n'; });
 
   void setParameters(const std::vector<TrackingParameters>&);
   std::vector<TrackingParameters>& getParameters() { return mTrkParams; }

Detectors/ITSMFT/ITS/tracking/src/TrackingInterface.cxx

@@ -211,9 +211,9 @@ void ITSTrackingInterface::run(framework::ProcessingContext& pc)
   loadROF(trackROFspan, compClusters, pattIt, labels);
   pattIt = patterns.begin();
   std::vector<int> savedROF;
-  auto logger = [&](std::string s) { LOG(info) << s; };
-  auto fatalLogger = [&](std::string s) { LOG(fatal) << s; };
-  auto errorLogger = [&](std::string s) { LOG(error) << s; };
+  auto logger = [&](const std::string& s) { LOG(info) << s; };
+  auto fatalLogger = [&](const std::string& s) { LOG(fatal) << s; };
+  auto errorLogger = [&](const std::string& s) { LOG(error) << s; };
 
   FastMultEst multEst; // mult estimator
   std::vector<uint8_t> processingMask, processUPCMask;