Feel so stupid... that was the problem, thanks. On 2 Nov 2011, at 01:02, Don Guinn wrote:
> What are the values of r, c and m? But I think that the outer loop is being > run a number of times but the inner loop doesn't execute after the first > time through as c is never reset. > > On Tue, Nov 1, 2011 at 6:54 PM, David Vaughan > <[email protected]>wrote: > >> I was just writing a function that has a nested while loop, but it seems >> that the outer loop only executes once. I guess I must be missing something >> here. >> >> while. r<{.$m >> do. >> while. c<{:$m >> do. >> m =. (((<r;c){m) + ((<r;c-1){m) <. ((<c;~r-1){m)) (<r;c) } m >> c =. >:c >> end. >> r =. >:r >> end. >> >> Is there anything about that to suggest why the outer loop would only >> happen once? >> >> I outputted 'r' at the end of the function and it returned 4 when the verb >> was applied to i.4 4 (which is what you would expect it to be having >> finished its loop). >> >> Is there a way I can make my function output things part way through it? >> So I could see if I just have a logic error somewhere (which I cannot see >> but suspect is the issue) that causes the loop to appear to stop after the >> first iteration. >> >> Thanks. >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
