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From: shite@unf7.UUCP (Stephen Hite)
Newsgroups: comp.sys.mac.programmer
Subject: HandleObject vs. 5+ meg of RAM and Virtual Memory
Message-ID: <279@unf7.UUCP>
Date: 6 Jul 90 15:41:09 GMT
Organization: Univ. of N. Florida, Jacksonville
Lines: 22


   If I have 5 or 8 meg of RAM and virtual memory (a.k.a System 7.0.2 :-))
is it really *worth* the limitations of using HandleObject?  Some of limitations
are (as taken from the MPW C++ Beta Manual):

   1. You can't "...declare global variables, local variables, arrays, members,
      or parameters of handle-based types (rather than pointers to them)."

   2. You can't use multiple inheritance (as discussed previously ad nauseum).

   3. "It is not possible to allocate an array of handle-based objects, for
      example, new MyObjects[10]."

   4. You cannot "...take a pointer to a field of an indirect class (i.e.,
      &x->y).  This restriction includes the implicit use of pointers by ref-
      erences, such as int& p = x->y."

There are a few more mentioned on pages 27 and 28 but I think I've included
the main ones.  I feel like I'm trying to build  a tree or forest of objects
and all the while I have to keep in mind that the ground below me is constantly
moving :-).   I can see it now..."Programmer's Guidelines to MPW C++" or 
"MPW C++...What Bjarne Stroustrup Didn't Tell You"...that'll be $35 pleeez.