Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!sun-barr!apple!Apple.COM!lsr
From: lsr@Apple.COM (Larry Rosenstein)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Think C 4.0 (really language differences)
Message-ID: <3968@internal.Apple.COM>
Date: 29 Aug 89 02:13:33 GMT
Sender: usenet@Apple.COM
Organization: Objects-R-Us,  Apple Computer, Inc.
Lines: 28
References:<227700036@uxa.cso.uiuc.edu> <10710@fluke.COM>

In article <10710@fluke.COM> mce@tc.fluke.COM (Brian McElhinney) writes:
> is no "inherited" keyword in C++ (it is a TC-ism).  One of my (many)
> complaints about C++ is that you have to explictly name the super class 
in
> order to invoke it's methods.  The syntax is "superclassname::method()".

When we (Apple) tried to define a subset of C++ that matched Object 
Pascal, this was one of the things we asked Stroustrup about.  The problem 
with using INHERITED as a keyword is that with multiple inheritance you 
may have multiple superclasses.  I guess he didn't want to add another 
keyword that could only be used in the signel inheritance case (you would 
need to explicitly name the superclass in the multiple inheritance case 
anyway).

In a sense, there are 4 dialects "C++-like languages".  

AT&T has both version 1.2 and 2.0 of C++, which are the "standards" (2.0 
adds a bunch of language features, including multiple inheritance).  
There's GNU g++, which based on news articles I've read, has a few 
different features and C++, and there's minimal C++ (the language I 
mentioned above, which I assume is implemented by TC 4.0).


Larry Rosenstein, Apple Computer, Inc.
Object Specialist

Internet: lsr@Apple.com   UUCP: {nsc, sun}!apple!lsr
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