From: Gabriele Galeotti <gabriele.galeotti.xyz@gmail.com>
Subject: Re: calling function but ignoring results
Date: Thu, 1 Jul 2021 11:07:41 -0700 (PDT) [thread overview]
Message-ID: <d7a1a0ef-6789-4fc0-b9b3-c28411b4a8c4n@googlegroups.com> (raw)
In-Reply-To: <sbftm5$1gn$1@dont-email.me>
On Tuesday, June 29, 2021 at 9:52:40 PM UTC+2, Jeffrey R. Carter wrote:
> On 6/29/21 9:25 PM, Matt Borchers wrote:
> > It is not very often that ignoring a function result is okay, but I have run across many instances of the following block structure in code over the years:
> >
> > declare
> > dont_care : BOOLEAN;
> > begin
> > dont_care := foo( x, y );
> > end;
> This sort of thing usually indicates a design problem.
> > Is there a Ada 202x feature to support calling functions and ignoring the result?
> If you want to use a language that allows this, then you probably shouldn't be
> developing S/W.
>
> --
> Jeff Carter
> "Blessed is just about anyone with a vested interest in the status quo."
> Monty Python's Life of Brian
> 73
Yes, you are right.
But sometimes it is necessary (especially at the H/W level) to force a read of
a peripheral register in order to obtain a specific behaviour, e.g., clear an interrupt
or latch a value previously written; in these cases what you read is useless.
G
next prev parent reply other threads:[~2021-07-01 18:07 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-29 19:25 calling function but ignoring results Matt Borchers
2021-06-29 19:52 ` Jeffrey R. Carter
2021-06-29 20:34 ` Dmitry A. Kazakov
2021-06-30 6:06 ` Randy Brukardt
2021-07-09 18:14 ` G.B.
2021-07-09 19:20 ` Niklas Holsti
2021-07-10 2:57 ` Randy Brukardt
2021-07-12 15:56 ` Shark8
2021-06-30 10:17 ` Luke A. Guest
2021-07-01 18:07 ` Gabriele Galeotti [this message]
2021-07-02 7:32 ` Marius Amado-Alves
2021-07-03 11:35 ` Gabriele Galeotti
2021-07-03 11:46 ` Gabriele Galeotti
2021-07-03 19:11 ` Simon Wright
2021-07-04 7:22 ` Simon Wright
2021-07-06 23:07 ` Randy Brukardt
2021-06-30 10:26 ` Luke A. Guest
2021-06-30 19:31 ` Simon Wright
2021-06-30 23:06 ` Rod Kay
2021-07-01 0:06 ` Stephen Leake
2021-07-01 3:55 ` Randy Brukardt
2021-07-03 10:42 ` Stephen Leake
2021-07-03 1:22 ` Nasser M. Abbasi
2021-07-03 4:59 ` Matt Borchers
2021-07-03 7:37 ` Gautier write-only address
2021-07-03 7:42 ` Gautier write-only address
2021-07-03 7:57 ` Niklas Holsti
2021-07-03 7:46 ` Gautier write-only address
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