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From: Thomas Hood <thomas@ifn.com>
Subject: Re: Enumeration literal visibility and use type
Date: 1998/05/28
Message-ID: <356D767E.41C6@ifn.com>#1/1
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Date: 1998-05-28T00:00:00+00:00
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John McCabe wrote:
> 
> dewar@merv.cs.nyu.edu (Robert Dewar) wrote:
> >John McCabe says

<snip>

> >
> >   package_name."+" (x,y);
> 
> I believe it's simply to do with people's expectations.
> 
> Naturally (well.. you know what I mean) we expect addition of 2 values to
> be represented by x + y, and this is true of most High Level Languages
> that I'm aware of, and C. Therefore it simply appears natural to prefer
> to see x + y rather than package_name."+"(x,y). (Note: I believe that
> both the package name and the ""s tend to distract the reader from the
> meaning in these cases).

<snip>

My usual Ada83 way around this was to import the operator using a
renames clause.
i.e.  function "+"(l,r : my_pkg.my_type) return my_pkg.my_type renames
my_pkg."+";

This allows the infix use of the binary operator.  It is still clumsy
and not very pretty but it sure makes the body of the code read better.

Thomas Hood
thomas@ifn.com
thomas@yachtrace.net