From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Subject: Re: Is this an error in compiler
Date: Sun, 11 Sep 2022 17:44:13 +0300 [thread overview]
Message-ID: <jo6ahtFfaipU1@mid.individual.net> (raw)
In-Reply-To: <tfkkcj$1talo$1@dont-email.me>
On 2022-09-11 15:30, Jeffrey R.Carter wrote:
> On 2022-09-11 10:10, Simon Wright wrote:
>>
>> I have to say these conditional constructs strike me as regrettable
>> Perl-isms, and reduce clarity:
>>
>> return foo when blah;
>> raise baz when quux;
>
> I presume you never use
>
> exit Name when Condition;
>
> since it must reduce clarity as well.
>
> I suggested these constructs for Ada 9X. They were rejected because you
> could get the same functionality with an if statement, and the ARG had
> more important things to spend their time on. I guess the ARG's workload
> must have decreased.
I don't find these "raise .. when" or "return .. when" constructs in the
Ada 2022 RM draft, so I don't think the ARG has adopted them (yet). I
suspect they are GNAT extensions, as is the ability to make a subtype of
String with a fixed lower index bound of 1 but an unconstrained upper
bound (1 .. <>), as also done in the OP's code.
I would not use these non-standard GNAT extensions, as long as GNAT is
not the only Ada compiler in the world, which it fortunately isn't.
next prev parent reply other threads:[~2022-09-11 14:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-11 7:19 Is this an error in compiler reinert
2022-09-11 8:10 ` Simon Wright
2022-09-11 10:52 ` reinert
2022-09-11 12:30 ` Jeffrey R.Carter
2022-09-11 12:59 ` Dmitry A. Kazakov
2022-09-11 14:44 ` Niklas Holsti [this message]
2022-09-11 15:47 ` Jeffrey R.Carter
2022-09-11 16:47 ` reinert
2022-09-11 17:18 ` Dmitry A. Kazakov
2022-09-12 7:05 ` Simon Wright
2022-09-11 15:14 ` Oliver Kellogg
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