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Newsgroups: comp.lang.ada
Date: Sun, 17 Jan 2021 06:10:33 -0800 (PST)
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Subject: Re: Lower bounds of Strings
From: Stephen Davies <joviangm@gmail.com>
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On Friday, 15 January 2021 at 17:35:54 UTC, Stephen Davies wrote:
> On Friday, 15 January 2021 at 11:41:24 UTC, J-P. Rosen wrote: 
> > function Slide (S : String) return String is 
> > (S(S'First) & S (S'First+1 .. S'Last));
> To me, this is a fundamental enough operation that, in the absence of 
> being able to specify a subtype where it happens automatically, it at 
> least deserves to be an attribute. 
Also, a Slide function does not work for "out" and "in out" parameters.
Admittedly, ehh.p...'s workaround does solve this, but I would prefer
a proper solution in the language, e.g. a Slide attribute that acts as a
view conversion.