RegionMeasure on packed array crashes Kernel in version 11.1

Question

Bug introduced in 11.1.0 and fixed in 11.1.1

In version 11.1.0, applying RegionMeasure or Area to a region with packed coordinates crashes the Kernel:

coords = Developer`ToPackedArray@{{0., 0.}, {1., 1.}};
Area[Rectangle @@ coords]

In versions 11.0.1 and 10.4.1 there is no crash.

One workaround is to unpack the packed arrays manually, but it is tedious:

coords = Developer`FromPackedArray@coords;
Area[Rectangle @@ coords]

1.

Is there a better way (setting a system-wide option, fixing code of internal function, etc.)?

What is your question? It would seem best to report this behavior to Wolfram Support. — MarcoB, Commented Mar 19, 2017 at 16:10
@MarcoB Added a question. If you are in a position to report, please do it. — Alexey Popkov, Commented Mar 19, 2017 at 16:27

ilian · Accepted Answer · 2017-04-25 16:54:45Z

3

This bug has been fixed as of version 11.1.1.

coords = Developer`ToPackedArray@{{0., 0.}, {1., 1.}};
Through[{RegionQ, Area}[Rectangle @@ coords]]

(* {True, 1.} *)

answered Apr 25, 2017 at 16:54

ilian

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$\begingroup$ Where did you download the 11.1.1? I only have 11.1.0 in my user portal. $\endgroup$
– xslittlegrass
Commented Apr 25, 2017 at 17:18
$\begingroup$ It's being rolled out today. $\endgroup$
– ilian
Commented Apr 25, 2017 at 17:20
$\begingroup$ Will my Mathematica update automatically or I need to download the whole installer from user portal? $\endgroup$
– xslittlegrass
Commented Apr 25, 2017 at 17:21
$\begingroup$ You would need the installer (as usual). $\endgroup$
– ilian
Commented Apr 25, 2017 at 17:25

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