diff options
Diffstat (limited to 'src/xml/node-observer.h')
| -rw-r--r-- | src/xml/node-observer.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/xml/node-observer.h b/src/xml/node-observer.h index fbbb04993..ca787c269 100644 --- a/src/xml/node-observer.h +++ b/src/xml/node-observer.h @@ -50,8 +50,10 @@ namespace XML { * no dangling references. */ class NodeObserver { -public: +protected: + /* the constructor is protected to prevent instantiation */ NodeObserver() {} +public: virtual ~NodeObserver() {} /** |