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From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Newsgroups: comp.lang.ada
Subject: Re: gnat.string_split , howto manipulate slice numbers
Date: Tue, 29 Oct 2019 21:36:01 +0200
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Xref: reader01.eternal-september.org comp.lang.ada:57379
Date: 2019-10-29T21:36:01+02:00
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On 2019-10-29 18:56, Jeffrey R. Carter wrote:
> On 10/29/19 9:17 AM, briot.emmanuel@gmail.com wrote:
>>
>>      use type GNAT.String_Split.Slice_Number;
>>
>> or
>>      use GNAT.String_Split;
> 
> or
> 
> function "-" (Left  : GNAT.String_Split.Slice_Number;
>                Right : GNAT.String_Split.Slice_Number)
> return GNAT.String_Split.Slice_Number renames GNAT.String_Split."-";

Yes, but I do not recommend this "rename" method for wide use. Some 
decades ago, in an Ada 83 project which thus did not allow "use type", 
we had several bugs where copy-paste sloppiness resulted in (for 
example) some "-" operator renaming a "+" operator, with "amusing" results.

I believe the risk of such bugs was a major reason for the introduction 
of "use type" in Ada.

--
Niklas Holsti
niklas holsti tidorum fi
       .      @       .