It is not in the Special Code section because there is nothing special about its implementation. There are examples of code that are even neater but are not "special" and so are not in Appendix B. For example, A. . http://www.jsoftware.com/jwiki/Essays/Permutation_Index
----- Original Message ----- From: Zsbán Ambrus <[email protected]> Date: Friday, February 19, 2010 9:37 Subject: Re: [Jgeneral] Special code for suffix scan To: General forum <[email protected]> > On Fri, Feb 19, 2010 at 4:37 PM, Roger Hui <[email protected]> wrote: > > The timings wouldn't be as follows if u/\. were quadratic: > > ----- Original Message ----- > >> Is there any chance that a future J version would optimize > the monad > >> u/\. for any verb u to make only linear number of calls to u > instead>> of quadratic? > > Wow, it's like that indeed, in the version I've got too. Sorry. > > However, I don't see this documented in the Special Code listing of > the Dictionary. Could you point me to where this is > documented, or > document this? ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
