Re: Does object have function?
"Pete Becker" <pete@versatilecoding.com> wrote in message
news:2010102907304538789-pete@versatilecodingcom...
On 2010-10-29 02:53:34 -0400, Paavo Helde said:
"Jim Langston" <tazmaster@rocketmail.com> wrote in
news:iacrrl$ah6$1@four.albasani.net:
What I am trying to accomplish: I have a map of polymorphic objects
and these objects may have certain methods defined or not. If the
instance has the method then I want to call it, otherwise not.
It is trivial to create a virtual function for a few functions. But I
would have to add every single function that could be interfaced.
This would just be one extra line for each function in the base class,
wouldn't it?
Sure. But if it's a class that responds to events in a GUI (Windows comes
to mind), there are potentially many tens of thousands of functions, with
a correspondingly large vtable.
Well, yeah, but I don't want to clutter up my base class with things most
objects have no concern about.
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