Explicitly mark overriding destructors as "virtual"

It appears that the C++ standard allows overriding destructors to be marked
"override," but at least some MSVC versions complain about it, so at least make
sure such destructors are explicitly marked "virtual."

Change-Id: I0e1cafa7584fd16ebdce61f569eae2373a71b0a1

3 files changed, 3 insertions, 3 deletions

diff --git a/xmlhelp/source/cxxhelp/provider/bufferedinputstream.hxx b/xmlhelp/source/cxxhelp/provider/bufferedinputstream.hxx
index b55257bb1e77..b52d3592eb76 100644
--- a/xmlhelp/source/cxxhelp/provider/bufferedinputstream.hxx
+++ b/xmlhelp/source/cxxhelp/provider/bufferedinputstream.hxx
@@ -42,7 +42,7 @@ namespace chelp {
         BufferedInputStream(
             const com::sun::star::uno::Reference<com::sun::star::io::XInputStream>& xInputStream);
 
-        ~BufferedInputStream();
+        virtual ~BufferedInputStream();
 
         virtual com::sun::star::uno::Any SAL_CALL
         queryInterface( const com::sun::star::uno::Type& rType )
diff --git a/xmlhelp/source/cxxhelp/provider/resultset.hxx b/xmlhelp/source/cxxhelp/provider/resultset.hxx
index 7a9b6ff274e1..e7b9c99019f4 100644
--- a/xmlhelp/source/cxxhelp/provider/resultset.hxx
+++ b/xmlhelp/source/cxxhelp/provider/resultset.hxx
@@ -50,7 +50,7 @@ namespace chelp {
             com::sun::star::ucb::XCommandEnvironment >& rxEnv,
             ResultSetFactory* pFactory );
 
-        ~DynamicResultSet();
+        virtual ~DynamicResultSet();
     };
 
 }
diff --git a/xmlhelp/source/cxxhelp/provider/urlparameter.cxx b/xmlhelp/source/cxxhelp/provider/urlparameter.cxx
index 7ccdebdf4b57..c2b0163a0fdc 100644
--- a/xmlhelp/source/cxxhelp/provider/urlparameter.cxx
+++ b/xmlhelp/source/cxxhelp/provider/urlparameter.cxx
@@ -329,7 +329,7 @@ public:
                             Databases*    pDatatabases,
                             bool isRoot = false );
 
-    ~InputStreamTransformer();
+    virtual ~InputStreamTransformer();
 
     virtual Any SAL_CALL queryInterface( const Type& rType ) throw( RuntimeException, std::exception ) SAL_OVERRIDE;
     virtual void SAL_CALL acquire( void ) throw() SAL_OVERRIDE;