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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: gnat.string_split , howto manipulate slice numbers
Date: Tue, 29 Oct 2019 17:53:44 +0100
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Date: 2019-10-29T17:53:44+01:00
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On 10/29/19 2:54 AM, Alain De Vos wrote:
> lsblk.adb:91:44: operator for type "Slice_Number" defined at g-arrspl.ads:116, instance at g-strspl.ads:39 is not directly visible

As the error message indicates, this is a visibility problem. Understanding 
visibility is key to understanding Ada. Since it's clear you don't understand 
visibility yet, I suggest you read /Ada Distilled/

https://www.adaic.org/wp-content/uploads/2010/05/Ada-Distilled-24-January-2011-Ada-2005-Version.pdf

Yes, it's for ISO/IEC 8652:2007, but visibility is still much the same.

-- 
Jeff Carter
"You cheesy lot of second-hand electric donkey-bottom biters."
Monty Python & the Holy Grail
14