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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Unreferenced parameters
Date: Thu, 04 Feb 2021 10:27:11 +0000
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"Randy Brukardt" <randy@rrsoftware.com> writes:

> We (the ARG) recently added an allowance for aspect specifications on 
> parameters and a few other constructs. The reason in part was because we 
> didn't want to restrict where implementation-defined aspects can be placed, 
> and the motivating case was aspect Unreferenced.
>
> So I'd guess that you can put the aspect directly on the parameters in the 
> usual way (but that may require a compiler not available yet; the change was 
> approved in Sept [AI12-0395-1] and Oct [AI12-0398-1]). So, I'd expect the 
> following to work (eventually):
>
>  overriding function Expand_Tabs
>      (This   : Dummy_Editor_Buffer with Unreferenced;
>       Line   : Editable_Line_Type with Unreferenced;
>       Column : Character_Offset_Type with Unreferenced) return 
> Visible_Column_Type is (0);

As you say, not yet. But .. looking good!