loplugin:casttovoid: connectivity

Change-Id: I03127890499dac67816bb43a8c3fb9dd87eefcab

31 files changed, 134 insertions, 287 deletions

diff --git a/connectivity/source/commontools/paramwrapper.cxx b/connectivity/source/commontools/paramwrapper.cxx
index 5e115fd5b3e0..8185b34ce2eb 100644
--- a/connectivity/source/commontools/paramwrapper.cxx
+++ b/connectivity/source/commontools/paramwrapper.cxx
@@ -181,7 +181,6 @@ namespace param
     sal_Bool ParameterWrapper::convertFastPropertyValue(Any& rConvertedValue, Any& rOldValue, sal_Int32 nHandle, const Any& rValue)
     {
         OSL_ENSURE( PROPERTY_ID_VALUE == nHandle, "ParameterWrapper::convertFastPropertyValue: the only non-readonly prop should be our PROPERTY_VALUE!" );
-        (void)nHandle;
 
         // we're lazy here ...
         rOldValue = m_aValue.makeAny();
diff --git a/connectivity/source/drivers/dbase/DTable.cxx b/connectivity/source/drivers/dbase/DTable.cxx
index 3e14a594bbb7..66f676bf19eb 100644
--- a/connectivity/source/drivers/dbase/DTable.cxx
+++ b/connectivity/source/drivers/dbase/DTable.cxx
@@ -1160,10 +1160,8 @@ bool ODbaseTable::CreateFile(const INetURLObject& aFile, bool& bCreateMemo)
             } // switch (getINT32(xCol->getPropertyValue(sPropType)))
         }
     }
-    catch ( const Exception& e )
+    catch ( const Exception& )
     {
-        (void)e;
-
         try
         {
             // we have to drop the file because it is corrupted now
@@ -1356,10 +1354,8 @@ bool ODbaseTable::CreateFile(const INetURLObject& aFile, bool& bCreateMemo)
                 (*m_pFileStream).WriteUChar( dBaseIIIMemo );
         } // if (bCreateMemo)
     }
-    catch ( const Exception& e )
+    catch ( const Exception& )
     {
-        (void)e;
-
         try
         {
             // we have to drop the file because it is corrupted now
@@ -2515,11 +2511,11 @@ void ODbaseTable::copyData(ODbaseTable* _pNewTable,sal_Int32 _nPos)
                     }
                 }
                 bOk = _pNewTable->InsertRow(*aInsertRow,_pNewTable->m_pColumns);
-                SAL_WARN_IF(!bOk, "connectivity.drivers", "Row could not be inserted!"); (void)bOk;
+                SAL_WARN_IF(!bOk, "connectivity.drivers", "Row could not be inserted!");
             }
             else
             {
-                SAL_WARN_IF(!bOk, "connectivity.drivers", "Row could not be fetched!"); (void)bOk;
+                SAL_WARN_IF(!bOk, "connectivity.drivers", "Row could not be fetched!");
             }
         }
         else
diff --git a/connectivity/source/drivers/firebird/Connection.cxx b/connectivity/source/drivers/firebird/Connection.cxx
index a17222f52f31..0511391ebc32 100644
--- a/connectivity/source/drivers/firebird/Connection.cxx
+++ b/connectivity/source/drivers/firebird/Connection.cxx
@@ -792,10 +792,9 @@ Reference< XNameAccess > SAL_CALL Connection::getTypeMap()
     return nullptr;
 }
 
-void SAL_CALL Connection::setTypeMap(const Reference< XNameAccess >& typeMap)
+void SAL_CALL Connection::setTypeMap(const Reference< XNameAccess >&)
 {
     ::dbtools::throwFeatureNotImplementedSQLException( "XConnection::setTypeMap", *this );
-    (void) typeMap;
 }
 
 //----- XCloseable -----------------------------------------------------------
diff --git a/connectivity/source/drivers/firebird/DatabaseMetaData.cxx b/connectivity/source/drivers/firebird/DatabaseMetaData.cxx
index 6bfa79c9794d..db6609f722ee 100644
--- a/connectivity/source/drivers/firebird/DatabaseMetaData.cxx
+++ b/connectivity/source/drivers/firebird/DatabaseMetaData.cxx
@@ -315,11 +315,9 @@ sal_Bool SAL_CALL ODatabaseMetaData::allTablesAreSelectable()
     return true;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::supportsConvert(sal_Int32 fromType,
-                                                     sal_Int32 toType)
+sal_Bool SAL_CALL ODatabaseMetaData::supportsConvert(sal_Int32,
+                                                     sal_Int32)
 {
-    (void) fromType;
-    (void) toType;
     return false;
 }
 
@@ -718,57 +716,48 @@ sal_Bool SAL_CALL ODatabaseMetaData::supportsResultSetConcurrency(
         return false;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::ownUpdatesAreVisible( sal_Int32 setType )
+sal_Bool SAL_CALL ODatabaseMetaData::ownUpdatesAreVisible( sal_Int32 )
 {
-    (void) setType;
     return false;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::ownDeletesAreVisible( sal_Int32 setType )
+sal_Bool SAL_CALL ODatabaseMetaData::ownDeletesAreVisible( sal_Int32 )
 {
-    (void) setType;
     return false;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::ownInsertsAreVisible( sal_Int32 setType )
+sal_Bool SAL_CALL ODatabaseMetaData::ownInsertsAreVisible( sal_Int32 )
 {
-    (void) setType;
     return false;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::othersUpdatesAreVisible( sal_Int32 setType )
+sal_Bool SAL_CALL ODatabaseMetaData::othersUpdatesAreVisible( sal_Int32 )
 {
-    (void) setType;
     return false;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::othersDeletesAreVisible( sal_Int32 setType )
+sal_Bool SAL_CALL ODatabaseMetaData::othersDeletesAreVisible( sal_Int32 )
 {
-    (void) setType;
     return false;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::othersInsertsAreVisible( sal_Int32 setType )
+sal_Bool SAL_CALL ODatabaseMetaData::othersInsertsAreVisible( sal_Int32 )
 {
-    (void) setType;
     return false;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::updatesAreDetected( sal_Int32 setType )
+sal_Bool SAL_CALL ODatabaseMetaData::updatesAreDetected( sal_Int32 )
 {
-    (void) setType;
     return false;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::deletesAreDetected( sal_Int32 setType )
+sal_Bool SAL_CALL ODatabaseMetaData::deletesAreDetected( sal_Int32 )
 {
-    (void) setType;
     return false;
 }
 
-sal_Bool SAL_CALL ODatabaseMetaData::insertsAreDetected( sal_Int32 setType )
+sal_Bool SAL_CALL ODatabaseMetaData::insertsAreDetected( sal_Int32 )
 {
-    (void) setType;
     return false;
 }
 
@@ -1412,65 +1401,49 @@ uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getTables(
 }
 
 uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getProcedureColumns(
-    const Any& catalog, const OUString& schemaPattern,
-    const OUString& procedureNamePattern, const OUString& columnNamePattern )
+    const Any&, const OUString&,
+    const OUString&, const OUString& )
 {
     SAL_WARN("connectivity.firebird", "Not yet implemented");
-    (void) catalog;
-    (void) schemaPattern;
-    (void) procedureNamePattern;
-    (void) columnNamePattern;
     OSL_FAIL("Not implemented yet!");
     // TODO implement
     return new ODatabaseMetaDataResultSet(ODatabaseMetaDataResultSet::eProcedureColumns);
 }
 
 uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getProcedures(
-    const Any& catalog, const OUString& schemaPattern,
-    const OUString& procedureNamePattern )
+    const Any&, const OUString&,
+    const OUString& )
 {
     SAL_WARN("connectivity.firebird", "Not yet implemented");
-    (void) catalog;
-    (void) schemaPattern;
-    (void) procedureNamePattern;
     OSL_FAIL("Not implemented yet!");
     // TODO implement
     return new ODatabaseMetaDataResultSet(ODatabaseMetaDataResultSet::eProcedures);
 }
 
 uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getVersionColumns(
-    const Any& catalog, const OUString& schema, const OUString& table )
+    const Any&, const OUString&, const OUString& )
 {
     SAL_WARN("connectivity.firebird", "Not yet implemented");
-    (void) catalog;
-    (void) schema;
-    (void) table;
     OSL_FAIL("Not implemented yet!");
     // TODO implement
     return new ODatabaseMetaDataResultSet(ODatabaseMetaDataResultSet::eVersionColumns);
 }
 
 uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getExportedKeys(
-    const Any& catalog, const OUString& schema, const OUString& table )
+    const Any&, const OUString&, const OUString& )
 {
     // List the columns in a table which are foreign keys. This is actually
     // never used anywhere in the LO codebase currently. Retrieval from firebird
     // requires using a 5-table join.
     SAL_WARN("connectivity.firebird", "Not yet implemented");
-    (void) catalog;
-    (void) schema;
-    (void) table;
     OSL_FAIL("Not implemented yet!");
     // TODO implement
     return new ODatabaseMetaDataResultSet(ODatabaseMetaDataResultSet::eExportedKeys);
 }
 
 uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getImportedKeys(
-    const Any& catalog, const OUString& schema, const OUString& table )
+    const Any&, const OUString&, const OUString& table )
 {
-    (void) catalog;
-    (void) schema;
-
     ODatabaseMetaDataResultSet* pResultSet = new
         ODatabaseMetaDataResultSet(ODatabaseMetaDataResultSet::eImportedKeys);
     uno::Reference< XResultSet > xResultSet = pResultSet;
@@ -1619,7 +1592,8 @@ uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getIndexInfo(
         const OUString& /*sSchema*/,
         const OUString& sTable,
         sal_Bool bIsUnique,
-        sal_Bool bIsApproximate)
+        sal_Bool) // TODO: what is bIsApproximate?
+
 {
     // Apparently this method can also return a "tableIndexStatistic"
     // However this is only mentioned in XDatabaseMetaData.idl (whose comments
@@ -1648,9 +1622,6 @@ uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getIndexInfo(
     if (bIsUnique)
         aQueryBuf.append("AND (indices.RDB$UNIQUE_FLAG = 1) ");
 
-    // TODO: what is bIsApproximate?
-    (void) bIsApproximate;
-
     OUString sQuery = aQueryBuf.makeStringAndClear();
 
     uno::Reference< XStatement > xStatement = m_pConnection->createStatement();
@@ -1708,14 +1679,9 @@ uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getIndexInfo(
 }
 
 uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getBestRowIdentifier(
-    const Any& catalog, const OUString& schema, const OUString& table, sal_Int32 scope,
-    sal_Bool nullable )
-{
-    (void) catalog;
-    (void) schema;
-    (void) table;
-    (void) scope;
-    (void) nullable;
+    const Any&, const OUString&, const OUString&, sal_Int32,
+    sal_Bool )
+{
     OSL_FAIL("Not implemented yet!");
     // TODO implement
     return new ODatabaseMetaDataResultSet(ODatabaseMetaDataResultSet::eBestRowIdentifier);
@@ -1789,27 +1755,17 @@ uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getTablePrivileges(
 }
 
 uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getCrossReference(
-    const Any& primaryCatalog, const OUString& primarySchema,
-    const OUString& primaryTable, const Any& foreignCatalog,
-    const OUString& foreignSchema, const OUString& foreignTable )
-{
-    (void) primaryCatalog;
-    (void) primarySchema;
-    (void) primaryTable;
-    (void) foreignCatalog;
-    (void) foreignSchema;
-    (void) foreignTable;
+    const Any&, const OUString&,
+    const OUString&, const Any&,
+    const OUString&, const OUString& )
+{
     OSL_FAIL("Not implemented yet!");
     // TODO implement
     return new ODatabaseMetaDataResultSet(ODatabaseMetaDataResultSet::eCrossReference);
 }
 
-uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getUDTs( const Any& catalog, const OUString& schemaPattern, const OUString& typeNamePattern, const Sequence< sal_Int32 >& types )
+uno::Reference< XResultSet > SAL_CALL ODatabaseMetaData::getUDTs( const Any&, const OUString&, const OUString&, const Sequence< sal_Int32 >& )
 {
-    (void) catalog;
-    (void) schemaPattern;
-    (void) typeNamePattern;
-    (void) types;
     OSL_FAIL("Not implemented yet!");
     // TODO implement
     return new ODatabaseMetaDataResultSet(ODatabaseMetaDataResultSet::eUDTs);
diff --git a/connectivity/source/drivers/firebird/Driver.cxx b/connectivity/source/drivers/firebird/Driver.cxx
index e3bdc3540cf0..399afad3ddb5 100644
--- a/connectivity/source/drivers/firebird/Driver.cxx
+++ b/connectivity/source/drivers/firebird/Driver.cxx
@@ -205,9 +205,8 @@ sal_Bool SAL_CALL FirebirdDriver::acceptsURL( const OUString& url )
 }
 
 Sequence< DriverPropertyInfo > SAL_CALL FirebirdDriver::getPropertyInfo(
-    const OUString& url, const Sequence< PropertyValue >& info )
+    const OUString& url, const Sequence< PropertyValue >& )
 {
-    (void) info;
     if ( ! acceptsURL(url) )
     {
         ::connectivity::SharedResources aResources;
diff --git a/connectivity/source/drivers/firebird/PreparedStatement.cxx b/connectivity/source/drivers/firebird/PreparedStatement.cxx
index 89e1650e5213..400b6c147cf8 100644
--- a/connectivity/source/drivers/firebird/PreparedStatement.cxx
+++ b/connectivity/source/drivers/firebird/PreparedStatement.cxx
@@ -482,10 +482,8 @@ void OPreparedStatement::closeBlobAfterWriting(isc_blob_handle& rBlobHandle)
     }
 }
 
-void SAL_CALL OPreparedStatement::setClob( sal_Int32 parameterIndex, const Reference< XClob >& x )
+void SAL_CALL OPreparedStatement::setClob( sal_Int32, const Reference< XClob >& )
 {
-    (void) parameterIndex;
-    (void) x;
     ::osl::MutexGuard aGuard( m_aMutex );
     checkDisposed(OStatementCommonBase_Base::rBHelper.bDisposed);
 
@@ -542,20 +540,16 @@ void SAL_CALL OPreparedStatement::setBlob(sal_Int32 nParameterIndex,
 }
 
 
-void SAL_CALL OPreparedStatement::setArray( sal_Int32 parameterIndex, const Reference< XArray >& x )
+void SAL_CALL OPreparedStatement::setArray( sal_Int32, const Reference< XArray >& )
 {
-    (void) parameterIndex;
-    (void) x;
     ::osl::MutexGuard aGuard( m_aMutex );
     checkDisposed(OStatementCommonBase_Base::rBHelper.bDisposed);
 
 }
 
 
-void SAL_CALL OPreparedStatement::setRef( sal_Int32 parameterIndex, const Reference< XRef >& x )
+void SAL_CALL OPreparedStatement::setRef( sal_Int32, const Reference< XRef >& )
 {
-    (void) parameterIndex;
-    (void) x;
     ::osl::MutexGuard aGuard( m_aMutex );
     checkDisposed(OStatementCommonBase_Base::rBHelper.bDisposed);
 
@@ -646,21 +640,16 @@ void SAL_CALL OPreparedStatement::setObjectWithInfo( sal_Int32 parameterIndex, c
 }
 
 
-void SAL_CALL OPreparedStatement::setObjectNull( sal_Int32 parameterIndex, sal_Int32 sqlType, const ::rtl::OUString& typeName )
+void SAL_CALL OPreparedStatement::setObjectNull( sal_Int32, sal_Int32, const ::rtl::OUString& )
 {
-    (void) parameterIndex;
-    (void) sqlType;
-    (void) typeName;
     ::osl::MutexGuard aGuard( m_aMutex );
     checkDisposed(OStatementCommonBase_Base::rBHelper.bDisposed);
 
 }
 
 
-void SAL_CALL OPreparedStatement::setObject( sal_Int32 parameterIndex, const Any& x )
+void SAL_CALL OPreparedStatement::setObject( sal_Int32, const Any& )
 {
-    (void) parameterIndex;
-    (void) x;
     ::osl::MutexGuard aGuard( m_aMutex );
     checkDisposed(OStatementCommonBase_Base::rBHelper.bDisposed);
 
@@ -714,22 +703,16 @@ void SAL_CALL OPreparedStatement::setBytes(sal_Int32 nParameterIndex,
 }
 
 
-void SAL_CALL OPreparedStatement::setCharacterStream( sal_Int32 parameterIndex, const Reference< css::io::XInputStream >& x, sal_Int32 length )
+void SAL_CALL OPreparedStatement::setCharacterStream( sal_Int32, const Reference< css::io::XInputStream >&, sal_Int32 )
 {
-    (void) parameterIndex;
-    (void) x;
-    (void) length;
     ::osl::MutexGuard aGuard( m_aMutex );
     checkDisposed(OStatementCommonBase_Base::rBHelper.bDisposed);
 
 }
 
 
-void SAL_CALL OPreparedStatement::setBinaryStream( sal_Int32 parameterIndex, const Reference< css::io::XInputStream >& x, sal_Int32 length )
+void SAL_CALL OPreparedStatement::setBinaryStream( sal_Int32, const Reference< css::io::XInputStream >&, sal_Int32 )
 {
-    (void) parameterIndex;
-    (void) x;
-    (void) length;
     ::osl::MutexGuard aGuard( m_aMutex );
     checkDisposed(OStatementCommonBase_Base::rBHelper.bDisposed);
 
diff --git a/connectivity/source/drivers/firebird/ResultSet.cxx b/connectivity/source/drivers/firebird/ResultSet.cxx
index fb3e72675fab..6d28111c36e4 100644
--- a/connectivity/source/drivers/firebird/ResultSet.cxx
+++ b/connectivity/source/drivers/firebird/ResultSet.cxx
@@ -339,18 +339,16 @@ sal_Int32 SAL_CALL OResultSet::findColumn(const OUString& rColumnName)
     return 0; // Never reached
 }
 
-uno::Reference< XInputStream > SAL_CALL OResultSet::getBinaryStream( sal_Int32 columnIndex )
+uno::Reference< XInputStream > SAL_CALL OResultSet::getBinaryStream( sal_Int32 )
 {
-    (void) columnIndex;
     MutexGuard aGuard(m_rMutex);
     checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
 
     return nullptr;
 }
 
-uno::Reference< XInputStream > SAL_CALL OResultSet::getCharacterStream( sal_Int32 columnIndex )
+uno::Reference< XInputStream > SAL_CALL OResultSet::getCharacterStream( sal_Int32 )
 {
-    (void) columnIndex;
     MutexGuard aGuard(m_rMutex);
     checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
 
@@ -659,9 +657,8 @@ sal_Int8 SAL_CALL OResultSet::getByte(sal_Int32 nColumnIndex)
     return safelyRetrieveValue< ORowSetValue >(nColumnIndex);
 }
 
-Sequence< sal_Int8 > SAL_CALL OResultSet::getBytes(sal_Int32 columnIndex)
+Sequence< sal_Int8 > SAL_CALL OResultSet::getBytes(sal_Int32)
 {
-    (void) columnIndex;
     return Sequence< sal_Int8 >(); // TODO: implement
     //return safelyRetrieveValue(columnIndex);
 }
@@ -724,9 +721,8 @@ uno::Reference< XResultSetMetaData > SAL_CALL OResultSet::getMetaData(  )
     return m_xMetaData;
 }
 
-uno::Reference< XArray > SAL_CALL OResultSet::getArray( sal_Int32 columnIndex )
+uno::Reference< XArray > SAL_CALL OResultSet::getArray( sal_Int32 )
 {
-    (void) columnIndex;
     MutexGuard aGuard(m_rMutex);
     checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
 
@@ -736,7 +732,6 @@ uno::Reference< XArray > SAL_CALL OResultSet::getArray( sal_Int32 columnIndex )
 
 uno::Reference< XClob > SAL_CALL OResultSet::getClob( sal_Int32 columnIndex )
 {
-    (void) columnIndex;
     MutexGuard aGuard(m_rMutex);
     checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
 
@@ -765,9 +760,8 @@ uno::Reference< XBlob > SAL_CALL OResultSet::getBlob(sal_Int32 columnIndex)
 }
 
 
-uno::Reference< XRef > SAL_CALL OResultSet::getRef( sal_Int32 columnIndex )
+uno::Reference< XRef > SAL_CALL OResultSet::getRef( sal_Int32 )
 {
-    (void) columnIndex;
     MutexGuard aGuard(m_rMutex);
     checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
 
@@ -775,10 +769,8 @@ uno::Reference< XRef > SAL_CALL OResultSet::getRef( sal_Int32 columnIndex )
 }
 
 
-Any SAL_CALL OResultSet::getObject( sal_Int32 columnIndex, const uno::Reference< css::container::XNameAccess >& typeMap )
+Any SAL_CALL OResultSet::getObject( sal_Int32, const uno::Reference< css::container::XNameAccess >& )
 {
-    (void) columnIndex;
-    (void) typeMap;
     MutexGuard aGuard(m_rMutex);
     checkDisposed(OResultSet_BASE::rBHelper.bDisposed);
 
diff --git a/connectivity/source/drivers/firebird/ResultSetMetaData.cxx b/connectivity/source/drivers/firebird/ResultSetMetaData.cxx
index 498bbaee3087..e5ba68a3bd72 100644
--- a/connectivity/source/drivers/firebird/ResultSetMetaData.cxx
+++ b/connectivity/source/drivers/firebird/ResultSetMetaData.cxx
@@ -67,20 +67,18 @@ sal_Int32 SAL_CALL OResultSetMetaData::getColumnType(sal_Int32 column)
     return getColumnTypeFromFBType(aType, aSubType, aScale);
 }
 
-sal_Bool SAL_CALL OResultSetMetaData::isCaseSensitive(sal_Int32 column)
+sal_Bool SAL_CALL OResultSetMetaData::isCaseSensitive(sal_Int32)
 {
     // Firebird is generally case sensitive when using quoted identifiers.
     // IF THIS CHANGES make ResultSet::findColumn to be case-insensitive as needed.
     // Generally names that are entirely UPPERCASE are case insensitive, however
     // there remains some ambiguity if there is another mixed-case-named column
     // of the same name. For safety always assume case insensitive.
-    (void) column;
     return true;
 }
 
-OUString SAL_CALL OResultSetMetaData::getSchemaName(sal_Int32 column)
+OUString SAL_CALL OResultSetMetaData::getSchemaName(sal_Int32)
 {
-    (void) column;
     return OUString(); // Schemas supported by firebird
 }
 
@@ -102,9 +100,8 @@ OUString SAL_CALL OResultSetMetaData::getTableName(sal_Int32 column)
                     RTL_TEXTENCODING_UTF8);
 }
 
-OUString SAL_CALL OResultSetMetaData::getCatalogName(sal_Int32 column)
+OUString SAL_CALL OResultSetMetaData::getCatalogName(sal_Int32)
 {
-    (void) column;
     return OUString(); // Catalogs not supported by firebird
 }
 
@@ -130,16 +127,14 @@ OUString SAL_CALL OResultSetMetaData::getColumnLabel(sal_Int32 column)
     return sRet;
 }
 
-OUString SAL_CALL OResultSetMetaData::getColumnServiceName(sal_Int32 column)
+OUString SAL_CALL OResultSetMetaData::getColumnServiceName(sal_Int32)
 {
     // TODO: implement
-    (void) column;
     return OUString();
 }
 
-sal_Bool SAL_CALL OResultSetMetaData::isCurrency(sal_Int32 column)
+sal_Bool SAL_CALL OResultSetMetaData::isCurrency(sal_Int32)
 {
-    (void) column;
     return false;
 }
 
@@ -179,10 +174,9 @@ sal_Bool SAL_CALL OResultSetMetaData::isAutoIncrement(sal_Int32 column)
 }
 
 
-sal_Bool SAL_CALL OResultSetMetaData::isSigned(sal_Int32 column)
+sal_Bool SAL_CALL OResultSetMetaData::isSigned(sal_Int32)
 {
     // Unsigned values aren't supported in firebird.
-    (void) column;
     return true;
 }
 
@@ -234,28 +228,24 @@ sal_Int32 SAL_CALL OResultSetMetaData::isNullable(sal_Int32 column)
         return ColumnValue::NO_NULLS;
 }
 
-sal_Bool SAL_CALL OResultSetMetaData::isSearchable(sal_Int32 column)
+sal_Bool SAL_CALL OResultSetMetaData::isSearchable(sal_Int32)
 {
     // TODO: Can the column be used as part of a where clause? Assume yes
-    (void) column;
     return true;
 }
 
-sal_Bool SAL_CALL OResultSetMetaData::isReadOnly(sal_Int32 column)
+sal_Bool SAL_CALL OResultSetMetaData::isReadOnly(sal_Int32)
 {
-    (void) column;
     return m_pConnection->isReadOnly(); // Readonly only available on db level
 }
 
-sal_Bool SAL_CALL OResultSetMetaData::isDefinitelyWritable(sal_Int32 column)
+sal_Bool SAL_CALL OResultSetMetaData::isDefinitelyWritable(sal_Int32)
 {
-    (void) column;
     return !m_pConnection->isReadOnly();
 }
 
-sal_Bool SAL_CALL OResultSetMetaData::isWritable( sal_Int32 column )
+sal_Bool SAL_CALL OResultSetMetaData::isWritable( sal_Int32 )
 {
-    (void) column;
     return !m_pConnection->isReadOnly();
 }
 
diff --git a/connectivity/source/drivers/firebird/Statement.cxx b/connectivity/source/drivers/firebird/Statement.cxx
index 671f50107542..62bff6d0aa28 100644
--- a/connectivity/source/drivers/firebird/Statement.cxx
+++ b/connectivity/source/drivers/firebird/Statement.cxx
@@ -50,9 +50,8 @@ using namespace ::osl;
 using namespace ::std;
 
 // ---- XBatchExecution - UNSUPPORTED ----------------------------------------
-void SAL_CALL OStatement::addBatch(const OUString& sql)
+void SAL_CALL OStatement::addBatch(const OUString&)
 {
-    (void) sql;
 }
 
 void SAL_CALL OStatement::clearBatch()
diff --git a/connectivity/source/drivers/firebird/StatementCommonBase.cxx b/connectivity/source/drivers/firebird/StatementCommonBase.cxx
index cc0e417f19db..58b5a635ea7b 100644
--- a/connectivity/source/drivers/firebird/StatementCommonBase.cxx
+++ b/connectivity/source/drivers/firebird/StatementCommonBase.cxx
@@ -293,22 +293,17 @@ void SAL_CALL OStatementCommonBase::clearWarnings()
 }
 
 sal_Bool OStatementCommonBase::convertFastPropertyValue(
-                            Any & rConvertedValue,
-                            Any & rOldValue,
-                            sal_Int32 nHandle,
-                            const Any& rValue )
+                            Any &,
+                            Any &,
+                            sal_Int32,
+                            const Any& )
 {
-    (void) rConvertedValue;
-    (void) rOldValue;
-    (void) nHandle;
-    (void) rValue;
     // here we have to try to convert
     return false;
 }
 
-void OStatementCommonBase::setFastPropertyValue_NoBroadcast(sal_Int32 nHandle,const Any& rValue)
+void OStatementCommonBase::setFastPropertyValue_NoBroadcast(sal_Int32 nHandle,const Any&)
 {
-    (void) rValue;
     // set the value to what ever is necessary
     switch(nHandle)
     {
@@ -327,9 +322,8 @@ void OStatementCommonBase::setFastPropertyValue_NoBroadcast(sal_Int32 nHandle,co
     }
 }
 
-void OStatementCommonBase::getFastPropertyValue(Any& rValue,sal_Int32 nHandle) const
+void OStatementCommonBase::getFastPropertyValue(Any&,sal_Int32 nHandle) const
 {
-    (void) rValue;
     switch(nHandle)
     {
         case PROPERTY_ID_QUERYTIMEOUT:
diff --git a/connectivity/source/drivers/firebird/Table.cxx b/connectivity/source/drivers/firebird/Table.cxx
index bf441792555d..e16d3089a0a0 100644
--- a/connectivity/source/drivers/firebird/Table.cxx
+++ b/connectivity/source/drivers/firebird/Table.cxx
@@ -222,9 +222,8 @@ void SAL_CALL Table::alterColumnByName(const OUString& rColName,
 }
 
 // ----- XRename --------------------------------------------------------------
-void SAL_CALL Table::rename(const OUString& rName)
+void SAL_CALL Table::rename(const OUString&)
 {
-    (void) rName;
     throw RuntimeException(); // Firebird doesn't support this.
 }
 
diff --git a/connectivity/source/drivers/firebird/User.cxx b/connectivity/source/drivers/firebird/User.cxx
index 1e3399f5716d..024d7eb4958a 100644
--- a/connectivity/source/drivers/firebird/User.cxx
+++ b/connectivity/source/drivers/firebird/User.cxx
@@ -16,18 +16,14 @@ using namespace ::connectivity::sdbcx;
 using namespace ::com::sun::star;
 using namespace ::com::sun::star::sdbc;
 
-User::User(const uno::Reference< XConnection >& rConnection):
+User::User():
     OUser(true) // Case Sensitive
-{
-    (void) rConnection;
-}
+{}
 
-User::User(const uno::Reference< XConnection >& rConnection, const OUString& rName):
+User::User(const OUString& rName):
     OUser(rName,
           true) // Case Sensitive
-{
-    (void) rConnection;
-}
+{}
 
 //----- IRefreshableGroups ----------------------------------------------------
 void User::refreshGroups()
diff --git a/connectivity/source/drivers/firebird/User.hxx b/connectivity/source/drivers/firebird/User.hxx
index 3d2e8db0ea41..8ff9155a14af 100644
--- a/connectivity/source/drivers/firebird/User.hxx
+++ b/connectivity/source/drivers/firebird/User.hxx
@@ -12,8 +12,6 @@
 
 #include <connectivity/sdbcx/VUser.hxx>
 
-#include <com/sun/star/sdbc/XConnection.hpp>
-
 namespace connectivity
 {
     namespace firebird
@@ -29,12 +27,11 @@ namespace connectivity
             /**
              * Create a "new" descriptor, which isn't yet in the database.
              */
-            explicit User(const css::uno::Reference< css::sdbc::XConnection >& rConnection);
+            User();
             /**
              * For a user that already exists in the db.
              */
-            User(const css::uno::Reference< css::sdbc::XConnection >& rConnection,
-                 const ::rtl::OUString& rName);
+            User(const ::rtl::OUString& rName);
 
             // IRefreshableGroups::
             virtual void refreshGroups() override;
diff --git a/connectivity/source/drivers/firebird/Users.cxx b/connectivity/source/drivers/firebird/Users.cxx
index 832872c51e66..c0103368c377 100644
--- a/connectivity/source/drivers/firebird/Users.cxx
+++ b/connectivity/source/drivers/firebird/Users.cxx
@@ -47,7 +47,7 @@ void Users::impl_refresh()
 
 ObjectType Users::createObject(const OUString& rName)
 {
-    return new User(m_xMetaData->getConnection(), rName);
+    return new User(rName);
 }
 
 uno::Reference< XPropertySet > Users::createDescriptor()
@@ -55,16 +55,14 @@ uno::Reference< XPropertySet > Users::createDescriptor()
     // There is some internal magic so that the same class can be used as either
     // a descriptor or as a normal user. See VUser.cxx for the details. In our
     // case we just need to ensure we use the correct constructor.
-    return new User(m_xMetaData->getConnection());
+    return new User;
 }
 
 //----- XAppend ---------------------------------------------------------------
 ObjectType Users::appendObject(const OUString& rName,
-                                const uno::Reference< XPropertySet >& rDescriptor)
+                                const uno::Reference< XPropertySet >&)
 {
     // TODO: set sSql as appropriate
-    (void) rName;
-    (void) rDescriptor;
     OUString sSql;
     m_xMetaData->getConnection()->createStatement()->execute(sSql);
 
@@ -72,13 +70,12 @@ ObjectType Users::appendObject(const OUString& rName,
 }
 
 //----- XDrop -----------------------------------------------------------------
-void Users::dropObject(sal_Int32 nPosition, const OUString& sName)
+void Users::dropObject(sal_Int32 nPosition, const OUString&)
 {
     uno::Reference< XPropertySet > xUser(getObject(nPosition));
 
     if (!ODescriptor::isNew(xUser))
     {
-        (void) sName;
         // TODO: drop me
     }
 }
diff --git a/connectivity/source/drivers/hsqldb/HDriver.cxx b/connectivity/source/drivers/hsqldb/HDriver.cxx
index a60f32766e26..5face6249692 100644
--- a/connectivity/source/drivers/hsqldb/HDriver.cxx
+++ b/connectivity/source/drivers/hsqldb/HDriver.cxx
@@ -328,10 +328,9 @@ namespace connectivity
                 {
                     xOrig = xDriver->connect( sConnectURL, aConnectionArgs );
                 }
-                catch(const Exception& e)
+                catch(const Exception&)
                 {
                     StorageContainer::revokeStorage(sKey,nullptr);
-                    (void)e;
                     throw;
                 }
 
diff --git a/connectivity/source/drivers/jdbc/JStatement.cxx b/connectivity/source/drivers/jdbc/JStatement.cxx
index 4b1534a0bad0..2ae4364d9c2d 100644
--- a/connectivity/source/drivers/jdbc/JStatement.cxx
+++ b/connectivity/source/drivers/jdbc/JStatement.cxx
@@ -133,9 +133,8 @@ Sequence< Type > SAL_CALL java_sql_Statement_Base::getTypes(  )
     Sequence< Type > aOldTypes = java_sql_Statement_BASE::getTypes();
     if ( m_pConnection.is() && !m_pConnection->isAutoRetrievingEnabled() )
     {
-        auto it = std::remove(aOldTypes.getArray(),aOldTypes.getArray() + aOldTypes.getLength(),
+        (void) std::remove(aOldTypes.getArray(),aOldTypes.getArray() + aOldTypes.getLength(),
                          cppu::UnoType<XGeneratedResultSet>::get());
-        (void)it;
         aOldTypes.realloc(aOldTypes.getLength() - 1);
     }
 
diff --git a/connectivity/source/drivers/mork/MConnection.cxx b/connectivity/source/drivers/mork/MConnection.cxx
index b11808da879a..0f6fb73b1a34 100644
--- a/connectivity/source/drivers/mork/MConnection.cxx
+++ b/connectivity/source/drivers/mork/MConnection.cxx
@@ -61,9 +61,8 @@ void SAL_CALL OConnection::release() throw()
 }
 
 
-void OConnection::construct(const OUString& url,const Sequence< PropertyValue >& info)
+void OConnection::construct(const OUString& url)
 {
-    (void) info; // avoid warnings
     SAL_INFO("connectivity.mork", "=> OConnection::construct()" );
     //  open file
     setURL(url);
diff --git a/connectivity/source/drivers/mork/MConnection.hxx b/connectivity/source/drivers/mork/MConnection.hxx
index 37606ea0387b..d53b5671cb99 100644
--- a/connectivity/source/drivers/mork/MConnection.hxx
+++ b/connectivity/source/drivers/mork/MConnection.hxx
@@ -49,7 +49,7 @@ namespace connectivity
 
         public:
             /// @throws css::sdbc::SQLException
-            void construct( const OUString& url,const css::uno::Sequence< css::beans::PropertyValue >& info);
+            void construct( const OUString& url);
             explicit OConnection(MorkDriver* const driver);
             virtual ~OConnection() override;
 
diff --git a/connectivity/source/drivers/mork/MDriver.cxx b/connectivity/source/drivers/mork/MDriver.cxx
index a45f149f6a33..58b714c72df7 100644
--- a/connectivity/source/drivers/mork/MDriver.cxx
+++ b/connectivity/source/drivers/mork/MDriver.cxx
@@ -45,12 +45,10 @@ css::uno::Sequence< OUString > MorkDriver::getSupportedServiceNames()
 
 css::uno::Reference< css::sdbc::XConnection > MorkDriver::connect(
     OUString const & url,
-    css::uno::Sequence< css::beans::PropertyValue > const & info)
+    css::uno::Sequence< css::beans::PropertyValue > const &)
 {
     SAL_INFO("connectivity.mork", "=> MorkDriver::connect()" );
 
-    (void) url; (void) info; // avoid warnings
-
     // Profile discovery
     css::uno::Reference<css::uno::XInterface> xInstance = context_->getServiceManager()->createInstanceWithContext("com.sun.star.mozilla.MozillaBootstrap", context_);
     OSL_ENSURE( xInstance.is(), "failed to create instance" );
@@ -72,7 +70,7 @@ css::uno::Reference< css::sdbc::XConnection > MorkDriver::connect(
     css::uno::Reference< css::sdbc::XConnection > xCon;
     OConnection* pCon = new OConnection(this);
     xCon = pCon;    // important here because otherwise the connection could be deleted inside (refcount goes -> 0)
-    pCon->construct(url, info);
+    pCon->construct(url);
     return xCon;
 }
 
@@ -112,11 +110,10 @@ sal_Bool MorkDriver::acceptsURL(OUString const & url)
 }
 
 css::uno::Sequence< css::sdbc::DriverPropertyInfo > MorkDriver::getPropertyInfo(
-    OUString const & url,
-    css::uno::Sequence< css::beans::PropertyValue > const & info)
+    OUString const &,
+    css::uno::Sequence< css::beans::PropertyValue > const &)
 {
     //... TODO
-    (void) url; (void) info; // avoid warnings
     return css::uno::Sequence< css::sdbc::DriverPropertyInfo >();
 }
 
diff --git a/connectivity/source/drivers/mozab/bootstrap/MMozillaBootstrap.cxx b/connectivity/source/drivers/mozab/bootstrap/MMozillaBootstrap.cxx
index a243ecca59aa..b891cc22b580 100644
--- a/connectivity/source/drivers/mozab/bootstrap/MMozillaBootstrap.cxx
+++ b/connectivity/source/drivers/mozab/bootstrap/MMozillaBootstrap.cxx
@@ -113,10 +113,8 @@ sal_Bool SAL_CALL MozillaBootstrap::getProfileExists( css::mozilla::MozillaProdu
 }
 
 // XProfileManager
-::sal_Int32 SAL_CALL MozillaBootstrap::bootupProfile( css::mozilla::MozillaProductType product, const OUString& profileName )
+::sal_Int32 SAL_CALL MozillaBootstrap::bootupProfile( css::mozilla::MozillaProductType, const OUString& )
 {
-    (void)product; /* avoid warning about unused parameter */
-    (void)profileName; /* avoid warning about unused parameter */
         return -1;
 }
 ::sal_Int32 SAL_CALL MozillaBootstrap::shutdownProfile(  )
@@ -135,17 +133,14 @@ sal_Bool SAL_CALL MozillaBootstrap::isCurrentProfileLocked(  )
 {
     return true;
 }
-OUString SAL_CALL MozillaBootstrap::setCurrentProfile( css::mozilla::MozillaProductType product, const OUString& profileName )
+OUString SAL_CALL MozillaBootstrap::setCurrentProfile( css::mozilla::MozillaProductType, const OUString& )
 {
-    (void)product; /* avoid warning about unused parameter */
-    (void)profileName; /* avoid warning about unused parameter */
     return OUString();
 }
 
 // XProxyRunner
-::sal_Int32 SAL_CALL MozillaBootstrap::Run( const css::uno::Reference< css::mozilla::XCodeProxy >& aCode )
+::sal_Int32 SAL_CALL MozillaBootstrap::Run( const css::uno::Reference< css::mozilla::XCodeProxy >& )
 {
-    (void)aCode; /* avoid warning about unused parameter */
     return -1;
 }
 
diff --git a/connectivity/source/drivers/mozab/bootstrap/MNSProfileDiscover.cxx b/connectivity/source/drivers/mozab/bootstrap/MNSProfileDiscover.cxx
index d5bf2d95dedd..4a0870e3bf9e 100644
--- a/connectivity/source/drivers/mozab/bootstrap/MNSProfileDiscover.cxx
+++ b/connectivity/source/drivers/mozab/bootstrap/MNSProfileDiscover.cxx
@@ -197,10 +197,8 @@ namespace connectivity
             const ProfileStruct& rProfile = (*rProduct.mProfileList.begin()).second;
             return rProfile.getProfileName();
         }
-        bool ProfileAccess::isProfileLocked( css::mozilla::MozillaProductType product, const OUString& profileName )
+        bool ProfileAccess::isProfileLocked( css::mozilla::MozillaProductType, const OUString& )
         {
-            (void)product; /* avoid warning about unused parameter */
-            (void)profileName; /* avoid warning about unused parameter */
             return true;
         }
 
diff --git a/connectivity/source/drivers/odbc/OConnection.cxx b/connectivity/source/drivers/odbc/OConnection.cxx
index 581f434a2745..ec9463e243dc 100644
--- a/connectivity/source/drivers/odbc/OConnection.cxx
+++ b/connectivity/source/drivers/odbc/OConnection.cxx
@@ -75,7 +75,6 @@ OConnection::~OConnection()
 
         rc = N3SQLFreeHandle( SQL_HANDLE_DBC, m_aConnectionHandle );
         OSL_ENSURE( rc == SQL_SUCCESS , "Failure from SQLFreeHandle for connection");
-        (void) rc;
 
         m_aConnectionHandle = SQL_NULL_HANDLE;
     }
diff --git a/connectivity/source/drivers/postgresql/pq_databasemetadata.cxx b/connectivity/source/drivers/postgresql/pq_databasemetadata.cxx
index 14d725fde1e0..1e0443e651f4 100644
--- a/connectivity/source/drivers/postgresql/pq_databasemetadata.cxx
+++ b/connectivity/source/drivers/postgresql/pq_databasemetadata.cxx
@@ -601,9 +601,8 @@ sal_Bool DatabaseMetaData::supportsTypeConversion(  )
     return false;
 }
 
-sal_Bool DatabaseMetaData::supportsConvert( sal_Int32 fromType, sal_Int32 toType )
+sal_Bool DatabaseMetaData::supportsConvert( sal_Int32, sal_Int32 )
 {
-    (void) fromType; (void) toType;
     return false;
 }
 
@@ -1074,11 +1073,10 @@ sal_Bool DatabaseMetaData::dataDefinitionIgnoredInTransactions(  )
 }
 
 css::uno::Reference< XResultSet > DatabaseMetaData::getProcedures(
-    const css::uno::Any& catalog,
-    const OUString& schemaPattern,
-    const OUString& procedureNamePattern )
+    const css::uno::Any&,
+    const OUString&,
+    const OUString& )
 {
-    (void) catalog; (void) schemaPattern; (void) procedureNamePattern;
 //        1.  PROCEDURE_CAT string =&gt; procedure catalog (may be NULL )
 //        2. PROCEDURE_SCHEM string =&gt; procedure schema (may be NULL )
 //        3. PROCEDURE_NAME string =&gt; procedure name
@@ -1099,12 +1097,11 @@ css::uno::Reference< XResultSet > DatabaseMetaData::getProcedures(
 }
 
 css::uno::Reference< XResultSet > DatabaseMetaData::getProcedureColumns(
-    const css::uno::Any& catalog,
-    const OUString& schemaPattern,
-    const OUString& procedureNamePattern,
-    const OUString& columnNamePattern )
+    const css::uno::Any&,
+    const OUString&,
+    const OUString&,
+    const OUString& )
 {
-    (void) catalog; (void) schemaPattern; (void) procedureNamePattern; (void) columnNamePattern;
     MutexGuard guard( m_xMutex->GetMutex() );
 // LEM TODO: implement
 // LEM TODO: at least fake the columns, even if no row.
@@ -1113,12 +1110,11 @@ css::uno::Reference< XResultSet > DatabaseMetaData::getProcedureColumns(
 }
 
 css::uno::Reference< XResultSet > DatabaseMetaData::getTables(
-    const css::uno::Any& catalog,
+    const css::uno::Any&,
     const OUString& schemaPattern,
     const OUString& tableNamePattern,
-    const css::uno::Sequence< OUString >& types )
+    const css::uno::Sequence< OUString >& )
 {
-    (void) catalog; (void) types;
     Statics &statics = getStatics();
 
     MutexGuard guard( m_xMutex->GetMutex() );
@@ -1446,12 +1442,11 @@ static void columnMetaData2DatabaseTypeDescription(
 
 
 css::uno::Reference< XResultSet > DatabaseMetaData::getColumns(
-    const css::uno::Any& catalog,
+    const css::uno::Any&,
     const OUString& schemaPattern,
     const OUString& tableNamePattern,
     const OUString& columnNamePattern )
 {
-    (void) catalog;
     // LEM TODO: review in comparison with JDBC driver
     Statics &statics = getStatics();
 
@@ -1632,13 +1627,11 @@ css::uno::Reference< XResultSet > DatabaseMetaData::getColumns(
 }
 
 css::uno::Reference< XResultSet > DatabaseMetaData::getColumnPrivileges(
-    const css::uno::Any& catalog,
+    const css::uno::Any&,
     const OUString& schema,
     const OUString& table,
     const OUString& columnNamePattern )
 {
-    (void) catalog;
-
     MutexGuard guard( m_xMutex->GetMutex() );
 
     if (isLog(m_pSettings, LogLevel::Info))
@@ -2247,7 +2240,7 @@ namespace
                                                 //   - BASIC - Supported except for WHERE .. LIKE
                                                 //   - FULL - Supported for all WHERE ..
         static const sal_Int32 UNSIGNED_ATTRIBUTE = 9; // boolean ==> is it unsigned?
-        static const sal_Int32 FIXED_PREC_SCALE = 10; // boolean ==> can it be a money value?
+        // FIXED_PREC_SCALE = 10; boolean ==> can it be a money value?
         static const sal_Int32 AUTO_INCREMENT = 11; // boolean ==> can it be used for
                                                     // an auto-increment value?
         static const sal_Int32 MINIMUM_SCALE = 13; // short ==> minimum scale supported
@@ -2307,7 +2300,6 @@ namespace
             row[MINIMUM_SCALE] <<= OUString("0");      // TODO: what is this ?
             row[MAXIMUM_SCALE] <<= OUString::number( getMaxScale( dataType ) );
             row[NUM_PREC_RADIX] <<= OUString("10");    // TODO: what is this ?
-            (void)FIXED_PREC_SCALE;
             vec.push_back( row );
         }
     }
@@ -2496,9 +2488,8 @@ sal_Bool DatabaseMetaData::supportsResultSetType( sal_Int32 setType )
 }
 
 sal_Bool DatabaseMetaData::supportsResultSetConcurrency(
-    sal_Int32 setType, sal_Int32 concurrency )
+    sal_Int32 setType, sal_Int32 )
 {
-    (void) concurrency;
     if ( ! supportsResultSetType( setType ) )
         return false;
     else
diff --git a/connectivity/source/drivers/postgresql/pq_driver.cxx b/connectivity/source/drivers/postgresql/pq_driver.cxx
index b1b3b407a987..5db4c82d3989 100644
--- a/connectivity/source/drivers/postgresql/pq_driver.cxx
+++ b/connectivity/source/drivers/postgresql/pq_driver.cxx
@@ -100,9 +100,8 @@ sal_Bool Driver::acceptsURL( const OUString& url )
 }
 
 Sequence< DriverPropertyInfo > Driver::getPropertyInfo(
-    const OUString& url,const Sequence< PropertyValue >& info )
+    const OUString&,const Sequence< PropertyValue >& )
 {
-    (void)url; (void)info;
     return Sequence< DriverPropertyInfo > ();
 }
 
@@ -214,9 +213,8 @@ private:
 };
 
 Reference< XInterface > OOneInstanceComponentFactory::createInstanceWithArgumentsAndContext(
-    Sequence< Any > const &rArguments, const Reference< XComponentContext > & ctx )
+    Sequence< Any > const &, const Reference< XComponentContext > & ctx )
 {
-    (void)rArguments;
     return createInstanceWithContext( ctx );
 }
 
diff --git a/connectivity/source/drivers/postgresql/pq_preparedstatement.cxx b/connectivity/source/drivers/postgresql/pq_preparedstatement.cxx
index fba81ea56942..34ca29b4e55d 100644
--- a/connectivity/source/drivers/postgresql/pq_preparedstatement.cxx
+++ b/connectivity/source/drivers/postgresql/pq_preparedstatement.cxx
@@ -406,9 +406,8 @@ Reference< XConnection > PreparedStatement::getConnection(  )
 }
 
 
-void PreparedStatement::setNull( sal_Int32 parameterIndex, sal_Int32 sqlType )
+void PreparedStatement::setNull( sal_Int32 parameterIndex, sal_Int32 )
 {
-    (void)sqlType;
     MutexGuard guard( m_xMutex->GetMutex() );
     checkClosed();
     checkColumnIndex( parameterIndex );
@@ -416,9 +415,8 @@ void PreparedStatement::setNull( sal_Int32 parameterIndex, sal_Int32 sqlType )
 }
 
 void PreparedStatement::setObjectNull(
-    sal_Int32 parameterIndex, sal_Int32 sqlType, const OUString& typeName )
+    sal_Int32 parameterIndex, sal_Int32, const OUString& )
 {
-    (void) sqlType; (void) typeName;
     MutexGuard guard( m_xMutex->GetMutex() );
     checkClosed();
     checkColumnIndex( parameterIndex );
@@ -554,22 +552,20 @@ void PreparedStatement::setTimestamp(
 }
 
 void PreparedStatement::setBinaryStream(
-    sal_Int32 parameterIndex,
-    const Reference< css::io::XInputStream >& x,
-    sal_Int32 length )
+    sal_Int32,
+    const Reference< css::io::XInputStream >&,
+    sal_Int32 )
 {
-    (void) parameterIndex; (void)x; (void) length;
     throw SQLException(
         "pq_preparedstatement: setBinaryStream not implemented",
         *this, OUString(), 1, Any () );
 }
 
 void PreparedStatement::setCharacterStream(
-    sal_Int32 parameterIndex,
-    const Reference< css::io::XInputStream >& x,
-    sal_Int32 length )
+    sal_Int32,
+    const Reference< css::io::XInputStream >&,
+    sal_Int32 )
 {
-    (void) parameterIndex; (void)x; (void) length;
     throw SQLException(
         "pq_preparedstatement: setCharacterStream not implemented",
         *this, OUString(), 1, Any () );
@@ -589,9 +585,8 @@ void PreparedStatement::setObjectWithInfo(
     sal_Int32 parameterIndex,
     const Any& x,
     sal_Int32 targetSqlType,
-    sal_Int32 scale )
+    sal_Int32 )
 {
-    (void) scale;
     if( css::sdbc::DataType::DECIMAL == targetSqlType ||
         css::sdbc::DataType::NUMERIC == targetSqlType )
     {
@@ -626,30 +621,27 @@ void PreparedStatement::setObjectWithInfo(
 }
 
 void PreparedStatement::setRef(
-    sal_Int32 parameterIndex,
-    const Reference< XRef >& x )
+    sal_Int32,
+    const Reference< XRef >& )
 {
-    (void) parameterIndex; (void)x;
     throw SQLException(
         "pq_preparedstatement: setRef not implemented",
         *this, OUString(), 1, Any () );
 }
 
 void PreparedStatement::setBlob(
-    sal_Int32 parameterIndex,
-    const Reference< XBlob >& x )
+    sal_Int32,
+    const Reference< XBlob >& )
 {
-    (void) parameterIndex; (void)x;
     throw SQLException(
         "pq_preparedstatement: setBlob not implemented",
         *this, OUString(), 1, Any () );
 }
 
 void PreparedStatement::setClob(
-    sal_Int32 parameterIndex,
-    const Reference< XClob >& x )
+    sal_Int32,
+    const Reference< XClob >& )
 {
-    (void) parameterIndex; (void)x;
     throw SQLException(
         "pq_preparedstatement: setClob not implemented",
         *this, OUString(), 1, Any () );
diff --git a/connectivity/source/drivers/postgresql/pq_resultsetmetadata.cxx b/connectivity/source/drivers/postgresql/pq_resultsetmetadata.cxx
index 646444bf0542..6b46bd2f5654 100644
--- a/connectivity/source/drivers/postgresql/pq_resultsetmetadata.cxx
+++ b/connectivity/source/drivers/postgresql/pq_resultsetmetadata.cxx
@@ -293,15 +293,13 @@ sal_Bool ResultSetMetaData::isAutoIncrement( sal_Int32 column )
     return ret;
 }
 
-sal_Bool ResultSetMetaData::isCaseSensitive( sal_Int32 column )
+sal_Bool ResultSetMetaData::isCaseSensitive( sal_Int32 )
 {
-    (void) column;
     return true; // ??? hmm, numeric types or
 }
 
-sal_Bool ResultSetMetaData::isSearchable( sal_Int32 column )
+sal_Bool ResultSetMetaData::isSearchable( sal_Int32 )
 {
-    (void) column;
     return true; // mmm, what types are not searchable ?
 }
 
@@ -316,9 +314,8 @@ sal_Int32 ResultSetMetaData::isNullable( sal_Int32 column )
         getStatics().IS_NULLABLE, column, css::sdbc::ColumnValue::NULLABLE_UNKNOWN );
 }
 
-sal_Bool ResultSetMetaData::isSigned( sal_Int32 column )
+sal_Bool ResultSetMetaData::isSigned( sal_Int32 )
 {
-    (void) column;
     return true;
 }
 
@@ -342,9 +339,8 @@ OUString ResultSetMetaData::getColumnName( sal_Int32 column )
     return m_colDesc[column-1].name;
 }
 
-OUString ResultSetMetaData::getSchemaName( sal_Int32 column )
+OUString ResultSetMetaData::getSchemaName( sal_Int32 )
 {
-    (void) column;
     return m_schemaName;
 }
 
@@ -412,9 +408,8 @@ OUString ResultSetMetaData::getColumnTypeName( sal_Int32 column )
 }
 
 
-sal_Bool ResultSetMetaData::isReadOnly( sal_Int32 column )
+sal_Bool ResultSetMetaData::isReadOnly( sal_Int32 )
 {
-    (void) column;
     return false;
 }
 
@@ -427,9 +422,8 @@ sal_Bool ResultSetMetaData::isDefinitelyWritable( sal_Int32 column )
 {
     return isWritable(column); // uhh, now it becomes really esoteric ....
 }
-OUString ResultSetMetaData::getColumnServiceName( sal_Int32 column )
+OUString ResultSetMetaData::getColumnServiceName( sal_Int32 )
 {
-    (void) column;
     return OUString();
 }
 
diff --git a/connectivity/source/drivers/postgresql/pq_xindexcolumns.cxx b/connectivity/source/drivers/postgresql/pq_xindexcolumns.cxx
index 1bc732dbdcc3..bab35147b26b 100644
--- a/connectivity/source/drivers/postgresql/pq_xindexcolumns.cxx
+++ b/connectivity/source/drivers/postgresql/pq_xindexcolumns.cxx
@@ -169,9 +169,8 @@ void IndexColumns::appendByDescriptor(
 
 }
 
-void IndexColumns::dropByName( const OUString& elementName )
+void IndexColumns::dropByName( const OUString& )
 {
-    (void) elementName;
     throw css::sdbc::SQLException(
         "SDBC-POSTGRESQL: IndexesColumns.dropByName not yet implemented",
         *this, OUString(), 1, Any() );
@@ -192,9 +191,8 @@ void IndexColumns::dropByName( const OUString& elementName )
 //     dropByIndex( ii->second );
 }
 
-void IndexColumns::dropByIndex( sal_Int32 index )
+void IndexColumns::dropByIndex( sal_Int32 )
 {
-    (void) index;
     throw css::sdbc::SQLException(
         "SDBC-POSTGRESQL: IndexesColumns.dropByIndex not yet implemented",
         *this, OUString(), 1, Any() );
diff --git a/connectivity/source/drivers/postgresql/pq_xindexes.cxx b/connectivity/source/drivers/postgresql/pq_xindexes.cxx
index 126e895d6e19..ac44329f5676 100644
--- a/connectivity/source/drivers/postgresql/pq_xindexes.cxx
+++ b/connectivity/source/drivers/postgresql/pq_xindexes.cxx
@@ -135,8 +135,8 @@ void Indexes::refresh()
         sal_Int32 index = 0;
         while( rs->next() )
         {
-            static const sal_Int32 C_SCHEMA = 1;
-            static const sal_Int32 C_TABLENAME = 2;
+            // C_SCHEMA = 1
+            // C_TABLENAME = 2
             static const sal_Int32 C_INDEXNAME = 3;
             static const sal_Int32 C_IS_CLUSTERED = 4;
             static const sal_Int32 C_IS_UNIQUE = 5;
@@ -147,7 +147,6 @@ void Indexes::refresh()
                 new Index( m_xMutex, m_origin, m_pSettings,
                            m_schemaName, m_tableName );
 
-            (void) C_SCHEMA; (void) C_TABLENAME;
             bool isUnique = row->getBoolean( C_IS_UNIQUE );
             bool isPrimary = row->getBoolean( C_IS_PRIMARY );
             bool isClusterd = row->getBoolean( C_IS_CLUSTERED );
diff --git a/connectivity/source/drivers/postgresql/pq_xkeycolumns.cxx b/connectivity/source/drivers/postgresql/pq_xkeycolumns.cxx
index 0ae1af1ffdb2..782861615707 100644
--- a/connectivity/source/drivers/postgresql/pq_xkeycolumns.cxx
+++ b/connectivity/source/drivers/postgresql/pq_xkeycolumns.cxx
@@ -157,9 +157,8 @@ void KeyColumns::refresh()
 
 
 void KeyColumns::appendByDescriptor(
-    const css::uno::Reference< css::beans::XPropertySet >& future )
+    const css::uno::Reference< css::beans::XPropertySet >& )
 {
-    (void) future;
     throw css::sdbc::SQLException(
         "KeyColumns::appendByDescriptor not implemented yet",
         *this, OUString(), 1, Any() );
@@ -174,9 +173,8 @@ void KeyColumns::appendByDescriptor(
 }
 
 
-void KeyColumns::dropByIndex( sal_Int32 index )
+void KeyColumns::dropByIndex( sal_Int32 )
 {
-    (void) index;
     throw css::sdbc::SQLException(
         "KeyColumns::dropByIndex not implemented yet",
         *this, OUString(), 1, Any() );
diff --git a/connectivity/source/drivers/postgresql/pq_xuser.cxx b/connectivity/source/drivers/postgresql/pq_xuser.cxx
index d310dada9aaf..52f1470c14e6 100644
--- a/connectivity/source/drivers/postgresql/pq_xuser.cxx
+++ b/connectivity/source/drivers/postgresql/pq_xuser.cxx
@@ -120,9 +120,8 @@ Any User::queryInterface( const Type & reqType )
 
 
 void User::changePassword(
-    const OUString& oldPassword, const OUString& newPassword )
+    const OUString&, const OUString& newPassword )
 {
-    (void) oldPassword;
     OUStringBuffer buf(128);
     buf.append( "ALTER USER " );
     bufferQuoteIdentifier( buf, extractStringProperty( this, getStatics().NAME ), m_pSettings );
@@ -149,23 +148,20 @@ sal_Int32 User::getPrivileges( const OUString& objName, sal_Int32 objType )
     return 0xffffffff;
 }
 
-sal_Int32 User::getGrantablePrivileges( const OUString& objName, sal_Int32 objType )
+sal_Int32 User::getGrantablePrivileges( const OUString&, sal_Int32 )
 {
-    (void) objName; (void) objType;
     // all privileges
     return 0xffffffff;
 }
 
-void User::grantPrivileges( const OUString& objName, sal_Int32 objType, sal_Int32 objPrivileges )
+void User::grantPrivileges( const OUString&, sal_Int32, sal_Int32 )
 {
-    (void) objName; (void) objType; (void) objPrivileges;
     throw css::sdbc::SQLException("pq_driver: privilege change not implemented yet",
                                              *this, OUString(), 1, Any() );
 }
 
-void User::revokePrivileges( const OUString& objName, sal_Int32 objType, sal_Int32 objPrivileges )
+void User::revokePrivileges( const OUString&, sal_Int32, sal_Int32 )
 {
-    (void) objName; (void) objType; (void) objPrivileges;
     throw css::sdbc::SQLException("pq_driver: privilege change not implemented yet",
                                              *this, OUString(), 1, Any() );
 }
diff --git a/connectivity/source/parse/sqliterator.cxx b/connectivity/source/parse/sqliterator.cxx
index 04011ed2b482..eaaeabab365a 100644
--- a/connectivity/source/parse/sqliterator.cxx
+++ b/connectivity/source/parse/sqliterator.cxx
@@ -1346,7 +1346,6 @@ void OSQLParseTreeIterator::traverseSearchCondition(OSQLParseNode * pSearchCondi
     {
         OSL_ENSURE(pSearchCondition->count() == 2,"OSQLParseTreeIterator: error in parse tree!");
         const OSQLParseNode* pPart2 = pSearchCondition->getChild(1);
-        (void)pPart2;
         OSL_ENSURE(SQL_ISTOKEN(pPart2->getChild(0),IS),"OSQLParseTreeIterator: error in parse tree!");
 
         OUString aString;