Re: Substrings as argument to procedures/functions

[Mart van de Wege <mvdwege@gmail.com>]

Pascal Obry <pascal@obry.net> writes:

> Le mercredi 13 avril 2016 à 04:43 -0700, reinkor a écrit :
>> If a complex subroutine is made by a subcontract (in the country far
>> far away),
>> then it is in general a point to provide only the necessary
>> information
>> to make the subroutine? I mean, if paranoia is in charge ? :-)
>
> No the point is for programmers to stop assuming anything about the
> data passed as argument. And here Ada shine, it gives you 'First,
> 'Last, 'Range...

I do have a minor question here though: That does not work if you have
any reason to try and modify the first character of a String. S(1) :=
To_Upper(S(1)) works, but S'First := To_Upper(S'First) does not.

So how do I handle that particular case?

(In my case I just threw in a localised 'Pragma Warnings' to turn off
the GNAT warning, but that's a workaround, not a solution, IMO).

Mmart

-- 
"We will need a longer wall when the revolution comes."
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