I wrote: > To go the other direction, however, you need to re-execute > the statements in question. (Which is quite reasonable > in purely functional contexts, but can be something of a > pain if you've not written your code that way.)
I expressed this poorly: It is not necessary to use a "purely functional" style (though that is sufficient). The requirement is that the code you will be re-executing is restartable. Note that this is often a good idea for other reasons (such as having other people be able to understand your code, and making it easier to reason about your code). -- Raul
---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
