Merge "Fix performance-for-range-copy warnings"
diff --git a/src/swappy/src/main/cpp/Swappy.cpp b/src/swappy/src/main/cpp/Swappy.cpp
index 15076a2..d1b03f1 100644
--- a/src/swappy/src/main/cpp/Swappy.cpp
+++ b/src/swappy/src/main/cpp/Swappy.cpp
@@ -197,7 +197,7 @@
 }
 
 template<typename T> void executeTracers(T& tracers) {
-    for (auto tracer : tracers) {
+    for (const auto& tracer : tracers) {
         tracer();
     }
 }