Very interesting.
C J
hours to write 6-8 0.5
# lines 150 5
secs to execute 0.35 0.67
The comparison are listed in decreasing
importance, and of course hours to write
and # lines are correlated.
----- Original Message -----
From: Robert Cyr <[EMAIL PROTECTED]>
Date: Sunday, October 5, 2008 5:53
Subject: Re: [Jprogramming] performance : J or C ?
To: Programming forum <[email protected]>
> Roger Hui wrote:
> >I would be interested to see the C routine. J Forum msgs
> >do not seem to permit attachments, so you may have to
> >post the code in a J wiki page.
>
> I may not have write permission in J wiki pages. It may be
> of interest to
> some that:
>
> - J code extracts its IPs in 5 lines. I read un a
> bit on mapped files and
> ti took about 1/2 hour to write the code. It
> executes in 0.67 seconds after
> loading J.
> - C code was writen as an exercise in 6-8 hours
> including a revision. It
> was cleanly written in 150 lines and executes
> in 0.35 secondss.
>
> The author of this C code had studied languages as ML before,
> but my
> demonstration did not persuade him to give J a try.
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
