🚀 go-pugleaf

In article <4ciauq$2e1@trojan.neta.com> jgreen@amex-trs.com writes:

> 	It seems that RTTI requires a compile time flag to be activated. When
> activated the code seems to bloat whether you actualy use the feature in the
> specific peice of code or not. From what I have learned this overhead is due
> to extra work done when the object is constructed (A pointer to this with a
> string representation of the class is added to a table). This overhead does
> not make RTTI a good addition to C++ but more of a optional addition to those
> who want it (this is how it is implemented now). Also are the addition of key
> words which is not a biggy in this case given the key word names.

There's nothing I can think of in the language that requires
it to be implemented that way.  It is intended to be possible
to implement RTTI by adding an extra field to the virtual function
table, which means there is a small amount of space overhead per
class (not per object) and no time overhead except for the places
in the program where RTTI is actually used.  I can see no reason why
any extra work should have to be done when objects are constructed.
-- 
				--Andrew Koenig
				  ark@research.att.com