From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: A few questions
Date: Thu, 12 Nov 2015 15:08:52 -0600
Date: 2015-11-12T15:08:52-06:00 [thread overview]
Message-ID: <n22v55$i2h$1@loke.gir.dk> (raw)
In-Reply-To: ly4mgrj8ab.fsf@pushface.org
"Simon Wright" <simon@pushface.org> wrote in message
news:ly4mgrj8ab.fsf@pushface.org...
> "Randy Brukardt" <randy@rrsoftware.com> writes:
>
>> "Simon Wright" <simon@pushface.org> wrote in message
>> news:lyziyskeu2.fsf@pushface.org...
>
>>> Oh, it should have been
>>>
>>> for P in F552A00_Prime_Numbers.Prime_Number_Set'(Max_Value =>
>>> 31).Iterate
>>> loop
>>
>> I probably would have made type Prime_Number_Set directly the iterator
>> type (I don't see any other need for it), which would get rid of the
>> need for the ".Iterate". An iterator doesn't necessarily have to have
>> anything to do with a container!
>
> Hmm.
>
> A Prime_Number_Set is a new Prime_Number_Iterator.Forward_Iterator;
> Iterate returns a Prime_Number_Iterator.Forward_Iterator'Class.
>
> I tried without the .Iterate, as before, and with
>
> for P in Prime_Number_Set'Class (Prime_Number_Set'(Max_Value => 30))
>
> (just in case) and as before got the 'expected a discrete type' error.
It should work either way. But does it work if you write:
for P in Prime_Number_Iterator.Forward_Iterator'Class
(Prime_Number_Set'(Max_Value => 30))
?? If so, GNAT surely has a bug (the type conversion shouldn't change
anything). You could also try:
for P in
Prime_Number_Iterator.Forward_Iterator'(Prime_Number_Set'(Max_Value => 30))
which also shouldn't change anything.
> Perhaps this is a GNAT bug?
Looks like it to me.
> On the other hand, why did Brad include function Iterate?
It appears that he wanted tracing of the initialization (as that is all it
does other than making a new iterator that is a copy of the first). It
shouldn't be necessary.
Randy.
next prev parent reply other threads:[~2015-11-12 21:08 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-31 20:29 A few questions Laurent
2015-10-31 20:49 ` Dmitry A. Kazakov
2015-11-01 13:16 ` Laurent
2015-11-01 0:25 ` Jeffrey R. Carter
2015-11-01 13:30 ` Laurent
2015-11-03 6:25 ` Randy Brukardt
2015-11-01 9:05 ` Jacob Sparre Andersen
2015-11-01 13:40 ` Laurent
2015-11-01 18:14 ` Jacob Sparre Andersen
2015-11-01 18:40 ` Laurent
2015-11-01 13:42 ` brbarkstrom
2015-11-01 13:52 ` Laurent
2015-11-01 17:59 ` Jeffrey R. Carter
2015-11-01 18:35 ` Laurent
2015-11-02 13:25 ` brbarkstrom
2015-11-01 15:15 ` Dennis Lee Bieber
2015-11-01 16:33 ` gautier_niouzes
2015-11-01 16:36 ` gautier_niouzes
2015-11-01 18:17 ` Stephen Leake
2015-11-01 18:53 ` Laurent
2015-11-02 0:41 ` Dennis Lee Bieber
2015-11-02 16:42 ` Stephen Leake
2015-11-02 17:45 ` Simon Wright
2015-11-02 18:48 ` Simon Wright
2015-11-03 6:33 ` Randy Brukardt
2015-11-03 8:26 ` Simon Wright
2015-11-03 6:40 ` Randy Brukardt
2015-11-03 8:34 ` Simon Wright
2015-11-04 16:19 ` Simon Wright
2015-11-05 1:20 ` Randy Brukardt
2015-11-05 8:34 ` briot.emmanuel
2015-11-12 18:28 ` Randy Brukardt
2015-11-12 20:19 ` Simon Wright
2015-11-12 20:56 ` Dmitry A. Kazakov
2015-11-12 21:15 ` Randy Brukardt
2015-11-13 8:40 ` Dmitry A. Kazakov
2015-11-13 17:52 ` Randy Brukardt
2015-11-13 20:37 ` Dmitry A. Kazakov
2015-11-13 22:15 ` Randy Brukardt
2015-11-14 11:42 ` Dmitry A. Kazakov
2015-11-14 12:37 ` Simon Wright
2015-11-14 17:24 ` Shark8
2015-11-14 20:09 ` Simon Wright
2015-11-15 18:54 ` Brad Moore
2015-11-13 8:45 ` briot.emmanuel
2015-11-13 17:41 ` Randy Brukardt
2015-11-14 19:57 ` briot.emmanuel
2015-11-16 19:13 ` Randy Brukardt
2015-11-16 20:47 ` Dmitry A. Kazakov
2015-11-17 21:30 ` Randy Brukardt
2015-11-18 9:53 ` Dmitry A. Kazakov
2015-11-18 22:27 ` Randy Brukardt
2015-11-19 8:52 ` Dmitry A. Kazakov
2015-11-19 21:15 ` Randy Brukardt
2015-11-16 21:50 ` Simon Wright
2015-11-17 21:33 ` Randy Brukardt
2015-11-17 23:14 ` Simon Wright
2015-11-17 8:49 ` briot.emmanuel
2015-11-17 22:09 ` Randy Brukardt
2015-11-05 8:45 ` Simon Wright
2015-11-05 8:52 ` Simon Wright
2015-11-12 18:29 ` Randy Brukardt
2015-11-12 18:32 ` Randy Brukardt
2015-11-12 20:02 ` Simon Wright
2015-11-12 21:08 ` Randy Brukardt [this message]
2015-11-15 17:56 ` Brad Moore
2015-11-15 21:42 ` Simon Wright
2015-11-16 19:16 ` Randy Brukardt
-- strict thread matches above, loose matches on Subject: below --
2015-02-07 17:43 Laurent
2015-02-07 22:15 ` Brad Moore
2015-02-08 22:37 ` Laurent
2015-02-09 13:56 ` Brad Moore
2015-02-09 18:36 ` Laurent
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