4 files changed, 7 insertions, 5 deletions
diff --git a/connectivity/source/inc/file/FDriver.hxx b/connectivity/source/inc/file/FDriver.hxx
index 9d289d618a3d..0351c59ca27a 100644
--- a/connectivity/source/inc/file/FDriver.hxx
+++ b/connectivity/source/inc/file/FDriver.hxx
@@ -42,7 +42,7 @@ namespace connectivity::file
                                                                                 //  for this Driver
             css::uno::Reference< css::uno::XComponentContext > m_xContext;
         public:
-            OFileDriver(const css::uno::Reference< css::uno::XComponentContext >& _rxContext);
+            OFileDriver(css::uno::Reference< css::uno::XComponentContext > _xContext);
 
             // OComponentHelper
             virtual void SAL_CALL disposing() override;
diff --git a/connectivity/source/inc/file/FResultSetMetaData.hxx b/connectivity/source/inc/file/FResultSetMetaData.hxx
index 65fc0bb3c83e..dee656a915f4 100644
--- a/connectivity/source/inc/file/FResultSetMetaData.hxx
+++ b/connectivity/source/inc/file/FResultSetMetaData.hxx
@@ -46,7 +46,7 @@ namespace connectivity::file
             virtual ~OResultSetMetaData() override;
         public:
             // a Constructor, that is needed for when Returning the Object is needed:
-            OResultSetMetaData(const ::rtl::Reference<connectivity::OSQLColumns>& _rxColumns,const OUString& _aTableName,OFileTable* _pTable);
+            OResultSetMetaData(::rtl::Reference<connectivity::OSQLColumns> _xColumns, OUString  _aTableName, OFileTable* _pTable);
 
             virtual sal_Int32 SAL_CALL getColumnCount(  ) override;
             virtual sal_Bool SAL_CALL isAutoIncrement( sal_Int32 column ) override;
diff --git a/connectivity/source/inc/file/fcode.hxx b/connectivity/source/inc/file/fcode.hxx
index c78461743c27..daadbf880f5a 100644
--- a/connectivity/source/inc/file/fcode.hxx
+++ b/connectivity/source/inc/file/fcode.hxx
@@ -25,6 +25,7 @@
 #include <file/filedllapi.hxx>
 
 #include <stack>
+#include <utility>
 
 namespace connectivity
 {
@@ -107,9 +108,9 @@ namespace connectivity
 
         protected:
             OOperandValue(){}
-            OOperandValue(const ORowSetValue& _rVar, sal_Int32 eDbType)
+            OOperandValue(ORowSetValue _aVar, sal_Int32 eDbType)
                 : OOperand(eDbType)
-                , m_aValue(_rVar)
+                , m_aValue(std::move(_aVar))
             {}
 
             OOperandValue(sal_Int32 eDbType) :OOperand(eDbType){}
diff --git a/connectivity/source/inc/file/fcomp.hxx b/connectivity/source/inc/file/fcomp.hxx
index ebdb0679e452..72afcdb0a84e 100644
--- a/connectivity/source/inc/file/fcomp.hxx
+++ b/connectivity/source/inc/file/fcomp.hxx
@@ -19,6 +19,7 @@
 #pragma once
 
 #include <file/fcode.hxx>
+#include <utility>
 
 namespace connectivity
 {
@@ -86,7 +87,7 @@ namespace connectivity
             ::rtl::Reference<OPredicateCompiler> m_rCompiler;
 
         public:
-            OPredicateInterpreter(const ::rtl::Reference<OPredicateCompiler>& rComp) : m_rCompiler(rComp){}
+            OPredicateInterpreter(::rtl::Reference<OPredicateCompiler> xComp) : m_rCompiler(std::move(xComp)){}
             virtual ~OPredicateInterpreter() override;
 
             bool        evaluate(OCodeList& rCodeList);