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Date: 23 Sep 92 19:11:27 GMT
From: sampson@cod.nosc.mil  (Charles H. Sampson)
Subject: Re: Using Global Variables
Message-ID: <1992Sep23.191127.27728@nosc.mil>
List-Id: <comp.lang.ada>

     Several of the entries in this thread have raised the spectre of shared
memory.  Without addressing whether shared memory is good or bad, let's clar-
ify that it's not the point of this thread.  _Global_ is an issue of name
scope, of visibility.  Ada gives perfectly adequate means for accessing
shared memory without requiring that the names of the data in the shared mem-
ory be global (the address clause).  The shared memory is a shared resource,
of course, and must be handled carefully, but the problems of shared memory
are quite different from the problems of global data, at least in Ada.

				Charlie