Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!bu-cs!mirror!ssi3b1!ssibbs!jac
From: jac@ssibbs.UUCP (James Crotinger)
Newsgroups: comp.sys.amiga
Subject: Re: C++ and CLTD.
Summary: Classier Intuition
Message-ID: <78@ssibbs.UUCP>
Date: 1 Feb 89 00:21:20 GMT
References: <551@jc3b21.UUCP> <5828@cbmvax.UUCP> <43927@linus.UUCP>
Organization: Sangho's Public Access Unix, Cambridge, MA
Lines: 33

In article <43927@linus.UUCP>, sdl@linus.UUCP (Steven D. Litvintchouk) writes:
> 
> By the way, is anyone out there working on defining an object-oriented
> C++ interface to Intuition, AmigaDOS, the ROM Kernel, etc.?  That is,
> a C++ class/inheritance hierarchy that defines interfaces to such
> Amiga "objects" as windows, tasks, etc.?
> 

  The package comes with a full set of include files that have been
massaged somewhat to take advantage of C++'s abilities. Many things
like the Window and Screen structures have been redefined as classes. 
However the classes only hide a couple of variables. This was done so
that the system still works basically like C programming does. It would
definitely be more in the C++ vein to hide all the data in these structures
and provide accessor functions to access those which a program should 
be able to modify. Also, not only is their the issue of compatibility
with existing C practices, but cfront takes a bunch of memory to compile
large complicated classes, and to make that the default would have 
(according to Tim Holloway) upped the minimum memory requirement (which
is already 1.5 Meg). There are a few example classes in the
cpp_include/cplus directory which are derived from more basic classes. 
One example is a console window which you can write to and read from
with the io stream functions, << and >>. Neat, but I wish there was
more. 

> Steven Litvintchouk

   Jim

-- 
                                        
                               Jim Crotinger
                               crotinger%mit.mfenet@nmfecc.arpa