6 files changed, 7 insertions, 7 deletions
diff --git a/vcl/source/control/ctrl.cxx b/vcl/source/control/ctrl.cxx
index 13ea3d0cdd96..2235cd4c3ca1 100644
--- a/vcl/source/control/ctrl.cxx
+++ b/vcl/source/control/ctrl.cxx
@@ -311,7 +311,7 @@ void Control::AppendLayoutData( const Control& rSubControl ) const
     }
 }
 
-bool Control::ImplCallEventListenersAndHandler( sal_uLong nEvent, std::function<void()> callHandler )
+bool Control::ImplCallEventListenersAndHandler( sal_uLong nEvent, std::function<void()> const & callHandler )
 {
     VclPtr<Control> xThis(this);
 
diff --git a/vcl/source/control/longcurr.cxx b/vcl/source/control/longcurr.cxx
index 6eb44c527742..b9283666c79d 100644
--- a/vcl/source/control/longcurr.cxx
+++ b/vcl/source/control/longcurr.cxx
@@ -259,7 +259,7 @@ inline bool ImplLongCurrencyGetValue( const OUString& rStr, BigInt& rValue,
     return ImplNumericGetValue( rStr, rValue, nDecDigits, rLocaleDataWrapper, true );
 }
 
-bool ImplLongCurrencyReformat( const OUString& rStr, BigInt nMin, BigInt nMax,
+bool ImplLongCurrencyReformat( const OUString& rStr, BigInt const & nMin, BigInt const & nMax,
                                sal_uInt16 nDecDigits,
                                const LocaleDataWrapper& rLocaleDataWrapper, OUString& rOutStr,
                                LongCurrencyFormatter& rFormatter )
diff --git a/vcl/source/control/slider.cxx b/vcl/source/control/slider.cxx
index 96e31060742c..a59eb77bc4e4 100644
--- a/vcl/source/control/slider.cxx
+++ b/vcl/source/control/slider.cxx
@@ -823,7 +823,7 @@ void Slider::Resize()
     Invalidate(InvalidateFlags::NoChildren | InvalidateFlags::NoErase);
 }
 
-void Slider::SetLinkedField(VclPtr<NumericField> pField)
+void Slider::SetLinkedField(VclPtr<NumericField> const & pField)
 {
     if (mpLinkedField)
     {
diff --git a/vcl/source/filter/jpeg/jpeg.h b/vcl/source/filter/jpeg/jpeg.h
index 63c4b2ac3d28..08caa474226c 100644
--- a/vcl/source/filter/jpeg/jpeg.h
+++ b/vcl/source/filter/jpeg/jpeg.h
@@ -40,7 +40,7 @@ void jpeg_svstream_src (j_decompress_ptr cinfo, void* infile);
 void jpeg_svstream_dest (j_compress_ptr cinfo, void* outfile);
 
 bool    WriteJPEG( JPEGWriter* pJPEGWriter, void* pOutputStream,
-                   long nWidth, long nHeight, basegfx::B2DSize aPPI, bool bGreyScale,
+                   long nWidth, long nHeight, basegfx::B2DSize const &  aPPI, bool bGreyScale,
                    long nQualityPercent, long aChromaSubsampling,
                    css::uno::Reference<css::task::XStatusIndicator> const & status);
 
diff --git a/vcl/source/filter/jpeg/jpegc.cxx b/vcl/source/filter/jpeg/jpegc.cxx
index ef3c91c736bf..74be061644c1 100644
--- a/vcl/source/filter/jpeg/jpegc.cxx
+++ b/vcl/source/filter/jpeg/jpegc.cxx
@@ -231,7 +231,7 @@ void ReadJPEG( JPEGReader* pJPEGReader, void* pInputStream, long* pLines,
 }
 
 bool WriteJPEG( JPEGWriter* pJPEGWriter, void* pOutputStream,
-                long nWidth, long nHeight, basegfx::B2DSize aPPI, bool bGreys,
+                long nWidth, long nHeight, basegfx::B2DSize const & aPPI, bool bGreys,
                 long nQualityPercent, long aChromaSubsampling,
                 css::uno::Reference<css::task::XStatusIndicator> const & status )
 {
diff --git a/vcl/source/image/ImplImageTree.cxx b/vcl/source/image/ImplImageTree.cxx
index b512dd43047a..1f7f1eca2480 100644
--- a/vcl/source/image/ImplImageTree.cxx
+++ b/vcl/source/image/ImplImageTree.cxx
@@ -78,7 +78,7 @@ std::shared_ptr<SvStream> wrapStream(css::uno::Reference< css::io::XInputStream
     return s;
 }
 
-void loadImageFromStream(std::shared_ptr<SvStream> xStream, OUString const & rPath, BitmapEx & rBitmap)
+void loadImageFromStream(std::shared_ptr<SvStream> const & xStream, OUString const & rPath, BitmapEx & rBitmap)
 {
     if (rPath.endsWith(".png"))
     {
@@ -359,7 +359,7 @@ void ImplImageTree::loadImageLinks()
     }
 }
 
-void ImplImageTree::parseLinkFile(std::shared_ptr<SvStream> xStream)
+void ImplImageTree::parseLinkFile(std::shared_ptr<SvStream> const & xStream)
 {
     OString aLine;
     OUString aLink, aOriginal;