From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: *
X-Spam-Status: No, score=1.3 required=5.0 tests=BAYES_00,INVALID_MSGID,
	MSGID_RANDY autolearn=no autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,c7ea1cb7a2beb2ee
X-Google-Attributes: gid103376,public
From: Robert Dewar <robert_dewar@my-deja.com>
Subject: Re: Disallowing Pre-Defined Operations
Date: 2000/03/21
Message-ID: <8b6s59$gep$1@nnrp1.deja.com>#1/1
X-Deja-AN: 600233170
References: <8a9eeg$qtv$1@newpoisson.nosc.mil> <38CA05AF.7E77790D@online.no>
 <8ang7v$peo$1@newpoisson.nosc.mil> <8ao2mm$ib7$1@nnrp1.deja.com>
 <8b6gr3$5a6$1@newpoisson.nosc.mil>
X-Http-Proxy: 1.0 x34.deja.com:80 (Squid/1.1.22) for client 205.232.38.14
Organization: Deja.com - Before you buy.
X-Article-Creation-Date: Tue Mar 21 04:00:49 2000 GMT
X-MyDeja-Info: XMYDJUIDrobert_dewar
Newsgroups: comp.lang.ada
X-Http-User-Agent: Mozilla/4.61 [en] (OS/2; I)
Date: 2000-03-21T00:00:00+00:00
List-Id: <comp.lang.ada>

In article <8b6gr3$5a6$1@newpoisson.nosc.mil>,
  claveman@cod.nosc.mil (Charles H. Sampson) wrote:

> That can give rise to ambiguities, as
> I illustrated in another post in this thread.

It is possible to create such examples, but in general
I think that is a bit of a bogus argument.

For a given operation, either you want it, in which case
you define it to do what you want, overriding the default
version if it is not what you want, or you define it as
abstract to make it illegal. I have seen this approach used
many times and used it myself, and it works out just fine.


Sent via Deja.com http://www.deja.com/
Before you buy.