I see that mapped files now supports boxed data. Studying http://www.jsoftware.com/jwiki/Guides/Named%20Noun%20Internals I tried to use viewnoun on a name containing boxed data. Got a domain error on memr (15!:1). Memory management in J help does not list boxed (32) as a valid data type for memory management. Is that the reason that memr crashed? There are several other data types other than 2, 4, 8 and 16. Should they be added to the list of valid data types or does memr not support them?
I got here because I wanted to be able to define a mapped noun into the middle of an existing name, not just offsetting the starting point, but also limit the ending point. Not too hard to do with data types 2, 4, 8 and 16, but what happens with other data types? What I was thinking about was wondering how to pick a subset of the boxes to map. Bit of a stretch? ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm