Subject:
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minor update to new random.c
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 28 Jun 2000 19:01:36 GMT
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Original-From:
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Richard Drushel <drushel@apk.net&saynotospam&>
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Viewed:
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1136 times
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Field testing in a real class is the best way to get bugs out of
code :-) My summer robotics class discovered a couple of "misfeatures"
in my new random.c pseudo-random number generator library:
(1) the rndrangei(), rndrangel(), and rnd() functions could not return
the upper bound of the range. E.g., rndrangei(0,2,1) would return
only 0 or 1, never 2.
(2) Fred Martin's original random() function is already defined in
lib_hb.c, so Handy Board users would get a "function already
defined" error when trying to load random.c. (The 6.270 board
standard library, lib_r22.c, doesn't have a random() function,
so I, running a 6.270-based course, included it in my random.c.)
I have fixed these errors and created a revised version 2.1 of
random.c. It is available via anonymous FTP at:
ftp://junior.apk.net/pub/users/drushel/rfd-ic/random.c
Please update to the new version if you're using random.c. If you edited
your lib_hb.c to remove random() to avoid the duplicate definition, you'll
have to put it back...fortunately, I just commented out the code in
random.c, so you can cut/paste it back in.
As always, let me know if you have any problems or find any bugs.
*Rich*
--
Richard F. Drushel, Ph.D. | "Aplysia californica" is your taxonomic
Department of Biology, Slug Division | nomenclature. / A slug, by any other
Case Western Reserve University | name, is still a slug by nature.
Cleveland, Ohio 44106-7080 U.S.A. | -- apologies to Data, "Ode to Spot"
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