From a94d8a7e78e6a1b46ebde8dd85eb6745a2dd18fa Mon Sep 17 00:00:00 2001
From: Wayne Stambaugh <stambaughw@gmail.com>
Date: Fri, 3 Feb 2023 10:00:09 -0500
Subject: [PATCH] Use references instead of copies in map pair for loops.

---
 eeschema/dialogs/dialog_change_symbols.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/eeschema/dialogs/dialog_change_symbols.cpp b/eeschema/dialogs/dialog_change_symbols.cpp
index 67cc553909..a619a16050 100644
--- a/eeschema/dialogs/dialog_change_symbols.cpp
+++ b/eeschema/dialogs/dialog_change_symbols.cpp
@@ -561,7 +561,7 @@ int DIALOG_CHANGE_SYMBOLS::processSymbols( const std::map<SCH_SYMBOL*,
 
     // Removing the symbol needs to be done before the LIB_SYMBOL is changed to prevent stale
     // library symbols in the schematic file.
-    for( auto pair : symbols )
+    for( auto& pair : symbols )
     {
         symbol = pair.first;
         instances = pair.second;
@@ -576,7 +576,7 @@ int DIALOG_CHANGE_SYMBOLS::processSymbols( const std::map<SCH_SYMBOL*,
         frame->SaveCopyInUndoList( screen, symbol, UNDO_REDO::CHANGED, true );
     }
 
-    for( auto pair : symbols )
+    for( auto& pair : symbols )
     {
         symbol = pair.first;