Have you tried f=: f,a ? It should be in-place.
----- Original Message ----- From: John Randall <[EMAIL PROTECTED]> Date: Sunday, October 29, 2006 5:22 pm Subject: [Jprogramming] Appending to mapped files > I am looking for advice on appending to large mapped files (yes, I > confess, it's the Netflix data). > > I have a name f mapped to a file containing a list of integers, > and I want > to append a list a from memory. I am essentially doing this by > > for_i. a do. > additem_jmf_ 'f' > f=:i (_1) } f > end. > > Is this what I am supposed to be doing, or is there a better way? ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
