loplugin:passstuffbyref improved returns

improve the detection of stuff we can return by const &, instead of by
copying

Change-Id: I479ae89d0413125a8295cc3cddbc0017ed61ed69
Reviewed-on: https://gerrit.libreoffice.org/46915
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

2 files changed, 2 insertions, 2 deletions

diff --git a/cppu/source/threadpool/threadpool.cxx b/cppu/source/threadpool/threadpool.cxx
index a3a3eab51d01..dcbe2ae0734d 100644
--- a/cppu/source/threadpool/threadpool.cxx
+++ b/cppu/source/threadpool/threadpool.cxx
@@ -53,7 +53,7 @@ namespace cppu_threadpool
         }
     };
 
-    DisposedCallerAdminHolder DisposedCallerAdmin::getInstance()
+    DisposedCallerAdminHolder const & DisposedCallerAdmin::getInstance()
     {
         return theDisposedCallerAdmin::get();
     }
diff --git a/cppu/source/threadpool/threadpool.hxx b/cppu/source/threadpool/threadpool.hxx
index 9b4d8cf661d3..85188fc52fd5 100644
--- a/cppu/source/threadpool/threadpool.hxx
+++ b/cppu/source/threadpool/threadpool.hxx
@@ -82,7 +82,7 @@ namespace cppu_threadpool {
     public:
         ~DisposedCallerAdmin();
 
-        static DisposedCallerAdminHolder getInstance();
+        static DisposedCallerAdminHolder const & getInstance();
 
         void dispose( sal_Int64 nDisposeId );
         void destroy( sal_Int64 nDisposeId );