Implement the RVNGInputStream::existsSubStream

Change-Id: I1219e0bbbc0e244f2dba0cd2ebce46bf2ebb5bea

1 files changed, 9 insertions, 5 deletions

diff --git a/src/lib/VSDInternalStream.h b/src/lib/VSDInternalStream.h
index 89a1f5f..63bcb3e 100644
--- a/src/lib/VSDInternalStream.h
+++ b/src/lib/VSDInternalStream.h
@@ -42,23 +42,27 @@ public:
   VSDInternalStream(librevenge::RVNGInputStream *input, unsigned long size, bool compressed=false);
   ~VSDInternalStream() {}
 
-  virtual bool isStructured()
+  bool isStructured()
   {
     return false;
   }
-  virtual unsigned subStreamCount()
+  unsigned subStreamCount()
   {
     return 0;
   }
-  virtual const char *subStreamName(unsigned)
+  const char *subStreamName(unsigned)
   {
     return 0;
   }
-  virtual librevenge::RVNGInputStream *getSubStreamByName(const char *)
+  bool existsSubStream(const char *)
+  {
+    return false;
+  }
+  librevenge::RVNGInputStream *getSubStreamByName(const char *)
   {
     return 0;
   }
-  virtual librevenge::RVNGInputStream *getSubStreamById(unsigned)
+  librevenge::RVNGInputStream *getSubStreamById(unsigned)
   {
     return 0;
   }