In article <4035eb87@news.povray.org>, Warp <war### [at] tagpovrayorg> 
wrote:

>   The "is-a" (and "has-a") relation between classes is a fundamental
> property of object-orientedness.

Minor correction: classless OO languages exist (look at prototype based 
object oriented langauges), and they do have inheritance. Inheritance is 
a necessary aspect of OOLs...if it doesn't have inheritance, it isn't 
OO. Other requirements are polymorphism and encapsulation. Modular 
programming languages have encapsulation of some kind, but lack in one 
or both of the others.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/

Post a reply to this message