Hello Sukender,
Quoting Sukender <[EMAIL PROTECTED]>:
> Has anyone *benchmarked* the difference between a dynamic_cast and a virtual
> call to identify the type of a class? Before my benchmark, I guessed the
> virtual call was cheaper, but how much? I just knew it depends a lot on how
> types are related for the dynamic_cast.
interesting results, I wouldn't have thought it'd be that different.
However when doing a dynamic_cast you probably don't want to check for exact
type (which is what the name compare is doing) but rather find out if an object
supports a certain interface i.e. is derived from a specific base class. You
simply can't do that by checking the class name.
Also for consistency you should add (and time) a static_cast<> after your strcmp
to get a pointer to the actual data type:
if (pointer->className() == "Target") {
Target* t = static_cast<Target*>(pointer);
}
Cheers,
/ulrich
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