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From: Luke A. Guest <laguest@archeia.com>
Newsgroups: comp.lang.ada
Subject: Re: Header-only Ada libraries...
Date: Thu, 31 May 2018 13:55:15 +0100
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Date: 2018-05-31T13:55:15+01:00
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> type C_String is new String with
>   Dynamic_Predicate => C_String'Length > 0
>   and then C_String (C_String'Last) = Nul;
> 
> For convience I added the following conversion routines between standard
> String types and C_String types in the Posix package:
> 
> 
> function "-" (Text : C_String) return String;
> -- Removes the last 'Nul' character and returns a normal String.
> 
> function "+" (Text : String) return C_String;
> -- Appends a 'Nul' character to a standard String and returns a C_String.
> 
> Not sure how well known this trick is so just mentioning it :)
> 

Ok, that’s pretty cool. Not seen that before.