diff options
| -rw-r--r-- | sdext/source/pdfimport/tree/treevisiting.hxx | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sdext/source/pdfimport/tree/treevisiting.hxx b/sdext/source/pdfimport/tree/treevisiting.hxx index b62340a7b9f8..73b3f2499a92 100644 --- a/sdext/source/pdfimport/tree/treevisiting.hxx +++ b/sdext/source/pdfimport/tree/treevisiting.hxx @@ -63,6 +63,7 @@ namespace pdfi virtual void visit( ImageElement&, const std::list< Element* >::const_iterator& ) = 0; virtual void visit( PageElement&, const std::list< Element* >::const_iterator& ) = 0; virtual void visit( DocumentElement&, const std::list< Element* >::const_iterator& ) = 0; + virtual ~ElementTreeVisitor() = 0 { }; }; typedef boost::shared_ptr<ElementTreeVisitor> ElementTreeVisitorSharedPtr; |