Please make sure this is on the bug list (Crashes) in the Wiki.

Henry Rich


On 1/3/2017 12:24 PM, 'Pascal Jasmin' via General wrote:
ar =: 1 : '5!:1 <''u'''

   [ `(1 ar)`]
┌─┬─────┬─┐
│[│┌─┬─┐│]│
│ ││0│1││ │
│ │└─┴─┘│ │
└─┴─────┴─┘

     [ `(1 ar)`]}
[`1`]}

The above is a user error.  Spec for } requires middle tine to be a verb such 
as: [`1:`]}


this is possibly a lr error,


[`1`]
|domain error
|       [`1`]

[`1`]}
|domain error
|       [`1`]}


but the following will crash J (804 or 805, qt windows 64bit)


3 [`(1 ar)`]} i.5

even though its hard to accidentally insert a noun into a gerund with `, user 
conjunctions can make it easier to build gerund of mixed types.  Perhaps it is 
worthwhile for },@.,^: to check for verb within gerund, or if the cost is the same, 
to automagically use N"_
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