Thread: error with function

ok i dont seem to see any function declarations with that sort of format. And no, this isn't my code, I'm just trying to change a few things with my minimal c++ knowledge. The only thing I wrote was the GetMarkerCount function that I posted at the beginning. so what can i do now that i've found out there are no pure virtual functions?

There has to be a pure virtual function somewhere in the hierarchy. Either osg::Drawable, or one of its base classes, or one of its base classes' base classes, etc. has a function with the = 0 at the end that has not been implemented higher up in the hierarchy. You have to find that function and implement it in BMLDrawable.

Maybe its the destructor and you just need to add empty braces?

ok I found this in osg:: Drawable:

Code:

        /** draw directly ignoring an OpenGL display list which could be attached.
          * This is the internal draw method which does the drawing itself,
          * and is the method to override when deriving from Drawable.
          */
        virtual void drawImplementation(State& state) const = 0;

now how do I implement it in BMLDrawable?

That's for you to figure out based on what your classes and program are supposed to do. If you just want to get it to compile so you can test your other function, you can copy that declaration into your BMLDrawable class and replace = 0 with empty curly braces.