# RegionMeasure on packed array crashes Kernel in version 11.1

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 = DeveloperToPackedArray@{{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 = DeveloperFromPackedArray@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 Mar 19 '17 at 16:10
• No crash in 11.0 either. – bobbym Mar 19 '17 at 16:18
• @MarcoB Added a question. If you are in a position to report, please do it. – Alexey Popkov Mar 19 '17 at 16:27
• It looks like RegionQ is the problem – Simon Woods Mar 19 '17 at 18:36

coords = DeveloperToPackedArray@{{0., 0.}, {1., 1.}};
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