[Scilab-users] slight bug in exists()

[Clément David]

Hello all,

Indeed this would probably break some code. We should carefully check the exist() usage within Scilab to ensure the output value is not passed to macros/gateways checking for a “double” datatype. Code using exists() output value as index or as condition might not be affected.

Don’t hesitate to push such a change on the master branch I will review it.

Thanks,

Clément

From: users <users-bounces at lists.scilab.org> On Behalf Of Antoine Monmayrant
Sent: Tuesday, February 9, 2021 4:28 AM
To: users at lists.scilab.org
Subject: Re: [Scilab-users] slight bug in exists()


Hello Federico,

I agree with you that this would make more sense.
Could such a change be implemented for a point release?
I assume it would introduce some bugs in existing code relying on the (unusual) double output...

Antoine
On 09/02/2021 03:24, Federico Miyara wrote:

Dear all,

I had already mentioned this a while ago (http://mailinglists.scilab.org/Scilab-users-exists-yields-double-tt4039853.html), but as I guess we are in the update season, it would be good opportunity to fix this (if there isn't strong opposition, or a good reason for this behavior, of course).

I'm referring to the fact that the function exists() should by nature yield a Boolean result such as T or F. However, it yields 1 or 0. While this is not a big deal, similar functions performing a binary decision on their arguments, such as isreal(), isvector(), isfile() and many others, yield Boolean results.

Regards,

Federico Miyara

[Image removed by sender.]<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>
Libre de virus. www.avast.com<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient>



_______________________________________________

users mailing list

users at lists.scilab.org<mailto:users at lists.scilab.org>

http://lists.scilab.org/mailman/listinfo/users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.scilab.org/pipermail/users/attachments/20210209/287eb28c/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 350 bytes
Desc: image001.jpg
URL: <https://lists.scilab.org/pipermail/users/attachments/20210209/287eb28c/attachment.jpg>