From: Victor Porton <porton@narod.ru>
Subject: Re: Some problems with iterators
Date: Thu, 21 Aug 2014 19:34:28 +0300
Date: 2014-08-21T19:34:28+03:00 [thread overview]
Message-ID: <lt572h$37m$1@speranza.aioe.org> (raw)
In-Reply-To: fef16ffd-7510-460e-a471-2474b713830e@googlegroups.com
Egil H H wrote:
> On Wednesday, August 20, 2014 6:48:53 PM UTC+2, Victor Porton wrote:
>> Why Ada2012 does allow only type name for an iterator in for loops,
>
> Please provide an example, or better yet, an RM reference, I can't find
> any for-loop that takes a type name for an iterator.
>
>> not an iterator object?
>
> But we can, RM 5.5.2(2/3).
It seems my misreading of RM:
"For the first form of iterator_specification, called a generalized
iterator, the expected type for the iterator_name is any iterator type."
I understood this as need to supply an iterator type as iterator_name, not a
value of this type. It seems my misunderstanding.
>> The following does not verify with GCC 4.9.1 (I think it is a compiler
>> bug and have reported this bug in GCC Bugzilla):
>
> What error do you get?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62205
test.ads:19:28: Default Iterator must be a primitive of "Descriptions_List"
Also, it seems that GCC 4.9.1 does not support "for ... in ... loop" syntax.
--
Victor Porton - http://portonvictor.org
next prev parent reply other threads:[~2014-08-21 16:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-20 16:48 Some problems with iterators Victor Porton
2014-08-21 7:06 ` Egil H H
2014-08-21 16:34 ` Victor Porton [this message]
2014-08-21 16:46 ` Victor Porton
2014-08-21 23:01 ` Randy Brukardt
2014-08-22 7:59 ` Egil H H
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