Re: [pure-lang] newbie on streams

[Albert Graef]

On Tue, Apr 23, 2013 at 11:35 PM, Ebm Boy <ebmtra...@gmail.com> wrote:

> let ones = 1 : ones &;

This creates a cyclic structure, so the stream gets expanded as soon as you first access the tail of the stream. Hence `show` tries to print the entire stream and will eventually run out of memory. Note that this won't happen if you define `ones` as a function instead.

So this is expected behaviour, but one might certainly argue that `show` should handle this more gracefully. ;-) Could you please submit a bug report? https://bitbucket.org/purelang/pure-lang/issues

 

--

Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email:  agg...@gmail.com, Dr.G...@t-online.de
WWW:    http://www.musikinformatik.uni-mainz.de/ag

[ebmtra...@gmail.com]

> let ones = 1 : ones &;

This creates a cyclic structure, so the stream gets expanded as soon as you first access the tail of the stream. Hence `show` tries to print the entire stream and will eventually run out of memory. Note that this won't happen if you define `ones` as a function instead.

ok, thanks.
 

So this is expected behaviour, but one might certainly argue that `show` should handle this more gracefully. ;-) Could you please submit a bug report? https://bitbucket.org/purelang/pure-lang/issues

 

done , this is Issue #6.

By the way, Albert, I've heard about pure via the faust website. My first motivation was another creation of yours, faust2lv2 (but pure is really cool, too!). I've posted a message to faust mailing list because I have a problem with faust2lv2synth and qtractor but I don't know if you have receive it. Here is the link,http://sourceforge.net/mailarchive/message.php?msg_id=30745829  , in case you haven't.

[Albert Graef]

On Fri, Apr 26, 2013 at 11:36 PM, <ebmtra...@gmail.com> wrote:

done , this is Issue #6.

Thanks.
 

By the way, Albert, I've heard about pure via the faust website. My first motivation was another creation of yours, faust2lv2 (but pure is really cool, too!). I've posted a message to faust mailing list because I have a problem with faust2lv2synth and qtractor but I don't know if you have receive it. Here is the link,http://sourceforge.net/mailarchive/message.php?msg_id=30745829  , in case you haven't.

Yeah, I've seen your message, but I haven't been able to reproduce the issue yet. You may want to submit a bug report at http://code.google.com/p/faust-lv2/issues/list so that it's not forgotten.

Albert

[Albert Graef]

Fixed in rev. b6cd8d8, thanks for reporting.

On Fri, Apr 26, 2013 at 11:36 PM, <ebmtra...@gmail.com> wrote:
>>

>>> > let ones = 1 : ones &;
>>
>> This creates a cyclic structure, so the stream gets expanded as soon as
>> you first access the tail of the stream. Hence `show` tries to print the
>> entire stream and will eventually run out of memory. Note that this won't
>> happen if you define `ones` as a function instead.
>>

>> So this is expected behaviour, but one might certainly argue that `show`
>> should handle this more gracefully. ;-) Could you please submit a bug
>> report? https://bitbucket.org/purelang/pure-lang/issues
>
> done , this is Issue #6.

--
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email: agg...@gmail.com

WWW: https://plus.google.com/111193356966611167754