From 05ade5fef22a0443858163ef7ffa8b82f46c7261 Mon Sep 17 00:00:00 2001
From: Douglas Barker <doug.barker@gmail.com>
Date: Fri, 13 Mar 2026 12:23:56 -0400
Subject: [PATCH] fix clang-tidy performance-for-range-copy warnings

---
 .../include/opentelemetry/exporters/ostream/common_utils.h    | 4 ++--
 sdk/include/opentelemetry/sdk/common/attributemap_hash.h      | 2 +-
 .../sdk/instrumentationscope/scope_configurator.h             | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/exporters/ostream/include/opentelemetry/exporters/ostream/common_utils.h b/exporters/ostream/include/opentelemetry/exporters/ostream/common_utils.h
index ec860794f0..e6335f0c12 100644
--- a/exporters/ostream/include/opentelemetry/exporters/ostream/common_utils.h
+++ b/exporters/ostream/include/opentelemetry/exporters/ostream/common_utils.h
@@ -31,7 +31,7 @@ void print_value(const std::vector<T> &vec, std::ostream &sout)
   sout << '[';
   size_t i  = 1;
   size_t sz = vec.size();
-  for (auto v : vec)
+  for (const auto &v : vec)
   {
     sout << v;
     if (i != sz)
@@ -47,7 +47,7 @@ void print_value(const nostd::span<T> &vec, std::ostream &sout)
   sout << '[';
   size_t i  = 1;
   size_t sz = vec.size();
-  for (auto v : vec)
+  for (const auto &v : vec)
   {
     sout << v;
     if (i != sz)
diff --git a/sdk/include/opentelemetry/sdk/common/attributemap_hash.h b/sdk/include/opentelemetry/sdk/common/attributemap_hash.h
index e56d6aaf75..5ab30e7f5f 100644
--- a/sdk/include/opentelemetry/sdk/common/attributemap_hash.h
+++ b/sdk/include/opentelemetry/sdk/common/attributemap_hash.h
@@ -32,7 +32,7 @@ inline void GetHash(size_t &seed, const T &arg)
 template <class T>
 inline void GetHash(size_t &seed, const std::vector<T> &arg)
 {
-  for (auto v : arg)
+  for (const auto &v : arg)
   {
     GetHash<T>(seed, v);
   }
diff --git a/sdk/include/opentelemetry/sdk/instrumentationscope/scope_configurator.h b/sdk/include/opentelemetry/sdk/instrumentationscope/scope_configurator.h
index f2d046f53a..71bc61b6a3 100644
--- a/sdk/include/opentelemetry/sdk/instrumentationscope/scope_configurator.h
+++ b/sdk/include/opentelemetry/sdk/instrumentationscope/scope_configurator.h
@@ -89,7 +89,7 @@ class ScopeConfigurator
       return ScopeConfigurator<T>(
           [conditions_ = this->conditions_, default_scope_config_ = this->default_scope_config_](
               const InstrumentationScope &scope_info) {
-            for (Condition condition : conditions_)
+            for (const Condition &condition : conditions_)
             {
               if (condition.scope_matcher(scope_info))
               {