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From: Martin <martin.dowie@btopenworld.com>
Newsgroups: comp.lang.ada
Subject: Re: Simple Warnings Needs
Date: Wed, 23 Feb 2011 13:55:54 -0800 (PST)
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Date: 2011-02-23T13:55:54-08:00
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On Feb 23, 6:52=A0pm, Rego <pablo.r...@embraer.com.br> wrote:
> =A0** "-gnatwk" (Variables that could be constants)

A rationale behind this one is that by explicitly declaring items as
constants you can prevent _accidental_ modification. It's also a nice
visual queue to a reader that the value is deliberately set once and
once only, or they are left to wonder why a variable is defined and
set once but never again - is that a bug?

I seem to remember an article by Dewar explaining why constants can
rarely be optimized but I can't put my finger on it at the moment...

HTH
-- Martin