loplugin:stringviewparam: operator +=

Change-Id: I30ce1b5bd8fb168da7067c1967c5af2569df2653
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/108512
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

5 files changed, 15 insertions, 6 deletions

diff --git a/include/i18nlangtag/languagetag.hxx b/include/i18nlangtag/languagetag.hxx
index d7c1c8787a53..62957f1f7f70 100644
--- a/include/i18nlangtag/languagetag.hxx
+++ b/include/i18nlangtag/languagetag.hxx
@@ -224,7 +224,7 @@ public:
         @return The resulting GLIBC locale string if it could be constructed,
                 if not an empty string is returned.
      */
-    OUString                        getGlibcLocaleString( const OUString & rEncoding ) const;
+    OUString                        getGlibcLocaleString( std::u16string_view rEncoding ) const;
 
     /** If language tag has a non-default script specified.
      */
diff --git a/include/oox/mathml/importutils.hxx b/include/oox/mathml/importutils.hxx
index 851b2564a100..9ab79a6f0858 100644
--- a/include/oox/mathml/importutils.hxx
+++ b/include/oox/mathml/importutils.hxx
@@ -10,6 +10,7 @@
 #define INCLUDED_OOX_MATHML_IMPORTUTILS_HXX
 
 #include <map>
+#include <string_view>
 #include <vector>
 
 #include <com/sun/star/uno/Reference.hxx>
@@ -229,7 +230,7 @@ public:
     void appendOpeningTag(int token, const AttributeList& attribs);
     void appendClosingTag(int token);
     // appends the characters after the last appended token
-    void appendCharacters(const OUString& characters);
+    void appendCharacters(std::u16string_view characters);
 };
 
 inline OUString XmlStream::Tag::attribute(int t, const OUString& def) const
diff --git a/include/sfx2/linkmgr.hxx b/include/sfx2/linkmgr.hxx
index 4a159e16df3e..fcd91ea81f0d 100644
--- a/include/sfx2/linkmgr.hxx
+++ b/include/sfx2/linkmgr.hxx
@@ -96,7 +96,7 @@ public:
     // the links connect to a SvLinkSource and adds to the list
     void        InsertDDELink( SvBaseLink*,
                         const OUString& rServer,
-                        const OUString& rTopic,
+                        std::u16string_view rTopic,
                         std::u16string_view rItem );
 
     // if everything is already set at the link!
@@ -176,7 +176,7 @@ const sal_Unicode cTokenSeparator = 0xFFFF;
 // - File-/Graphics-LinkNames the last 3 Strings (FileName, Region, Filter)
 SFX2_DLLPUBLIC void MakeLnkName( OUString& rName,
                  const OUString* pType,       // Can also be null!!
-                 const OUString& rFile,
+                 std::u16string_view rFile,
                  std::u16string_view rLink,
                  const OUString* pFilter = nullptr );
 
diff --git a/include/svx/tbxcolor.hxx b/include/svx/tbxcolor.hxx
index b98b0be7b326..86dff9a9249f 100644
--- a/include/svx/tbxcolor.hxx
+++ b/include/svx/tbxcolor.hxx
@@ -19,6 +19,10 @@
 
 #pragma once
 
+#include <sal/config.h>
+
+#include <string_view>
+
 #include <com/sun/star/frame/XLayoutManager.hpp>
 #include <svx/svxdllapi.h>
 
@@ -37,7 +41,7 @@ namespace svx
             css::frame::XLayoutManager >   m_xLayouter;
 
     public:
-        ToolboxAccess( const OUString& rToolboxName );
+        ToolboxAccess( std::u16string_view rToolboxName );
 
     public:
         /** toggles the toolbox
diff --git a/include/unotools/fontdefs.hxx b/include/unotools/fontdefs.hxx
index 887041f6f15b..ad1d6726f17e 100644
--- a/include/unotools/fontdefs.hxx
+++ b/include/unotools/fontdefs.hxx
@@ -19,6 +19,10 @@
 #ifndef INCLUDED_UNOTOOLS_FONTDEFS_HXX
 #define INCLUDED_UNOTOOLS_FONTDEFS_HXX
 
+#include <sal/config.h>
+
+#include <string_view>
+
 #include <unotools/unotoolsdllapi.h>
 #include <sal/types.h>
 #include <rtl/ustring.hxx>
@@ -38,7 +42,7 @@ namespace o3tl
 
 UNOTOOLS_DLLPUBLIC OUString GetSubsFontName( const OUString& rName, SubsFontFlags nFlags );
 
-UNOTOOLS_DLLPUBLIC void AddTokenFontName( OUString& rName, const OUString& rNewToken );
+UNOTOOLS_DLLPUBLIC void AddTokenFontName( OUString& rName, std::u16string_view rNewToken );
 
 
 class UNLESS_MERGELIBS(UNOTOOLS_DLLPUBLIC) ConvertChar