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| From | Jim Janney <jjanney@shell.xmission.com> |
|---|---|
| Newsgroups | alt.comp.lang.borland-delphi, comp.lang.c, comp.lang.java.programmer |
| Subject | Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) |
| Date | 2012-05-23 08:46 -0600 |
| Organization | he sent them word I had not gone |
| Message-ID | <ydnpq9v2bvi.fsf@shell.xmission.com> (permalink) |
| References | <b3f1b$4fb4f87c$5419acc3$14079@cache60.multikabel.net> <jpht7l$vnj$2@blue-new.rahul.net> |
Cross-posted to 3 groups.
falk@rahul.net (Edward A. Falk) writes:
> In article <b3f1b$4fb4f87c$5419acc3$14079@cache60.multikabel.net>,
> Skybuck Flying <Windows7IsOK@DreamPC2006.com> wrote:
>>
>>"
>>private static void rangeCheck(int arrayLen, int fromIndex, int toIndex) {
>> if (fromIndex > toIndex)
>> throw new IllegalArgumentException("fromIndex(" + fromIndex +
>> ") > toIndex(" + toIndex+")");
>> if (fromIndex < 0)
>> throw new ArrayIndexOutOfBoundsException(fromIndex);
>> if (toIndex > arrayLen)
>> throw new ArrayIndexOutOfBoundsException(toIndex);
>>}
>>"
>
> Executive summary: If the indices here are used as [fromIndex toIndex) --
> that is, inclusive-exclusive -- as is often the custom, *and* a
> zero-length range is permitted, then this code is correct as written.
>
> Plus, if this was a commonly-used code fragment, any error would have
> turned up long ago.
>
> Finally, the keyword "private" means that this function is unavailable
> outside of the file that defines it. There would be no reason to document
> it. There would also be no reason to hold it to any standard other than
> that it perform the specific function for which it was intended. Without
> seeing the functions or methods that call it, there's really no true way
> to know if it's buggy or not.
The complete code is available for inspection: it's distributed with
every copy of the JDK, and can also be found on the web at many places,
for example:
http://cr.openjdk.java.net/~martin/webrevs/openjdk7/timsort/src/share/classes/java/util/TimSort.java.html
And as has been pointed out before, the function *is* documented and the
implementation matches its contract exactly.
It's not a bug. Period.
--
Jim Janney
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Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-17 15:09 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Fred K <fred.l.kleinschmidt@gmail.com> - 2012-05-17 07:41 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-17 17:26 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Heikki Kallasjoki <fis+usenet@zem.fi> - 2012-05-17 16:19 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-17 19:57 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-05-17 18:33 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-17 23:25 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-17 14:58 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-05-17 17:59 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Heikki Kallasjoki <fis+usenet@zem.fi> - 2012-05-17 22:13 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-18 01:18 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-05-17 21:32 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Noob <root@127.0.0.1> - 2012-05-18 17:08 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-19 20:53 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-19 21:19 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-19 18:47 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-20 17:55 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-19 20:18 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-19 20:21 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-19 20:52 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:27 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:25 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) bugbear <bugbear@trim_papermule.co.uk_trim> - 2012-05-21 17:12 +0100
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Heikki Kallasjoki <fis+usenet@zem.fi> - 2012-05-18 07:22 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:21 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:23 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-18 01:09 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:14 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-21 09:36 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) nick_keighley_nospam@hotmail.com - 2012-05-21 06:42 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-20 17:53 +0200
Re: names for parameters of ranges Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:30 -0400
Re: names for parameters of ranges Gene Wirchenko <genew@ocis.net> - 2012-05-20 20:48 -0700
Re: names for parameters of ranges (was: ...) Willem <willem@toad.stack.nl> - 2012-05-23 09:43 +0000
Re: names for parameters of ranges Willem <willem@toad.stack.nl> - 2012-05-23 11:07 +0000
Re: names for parameters of ranges Willem <willem@toad.stack.nl> - 2012-05-23 15:42 +0000
Re: names for parameters of ranges Willem <willem@toad.stack.nl> - 2012-05-23 11:11 +0000
Re: names for parameters of ranges nick_keighley_nospam@hotmail.com - 2012-05-23 05:05 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Heikki Kallasjoki <fis+usenet@zem.fi> - 2012-05-17 19:13 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-17 23:16 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:32 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-21 09:40 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-05-21 10:05 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) nick_keighley_nospam@hotmail.com - 2012-05-22 00:23 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "BartC" <bc@freeuk.com> - 2012-05-22 11:02 +0100
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 14:41 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:12 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Keith Thompson <kst-u@mib.org> - 2012-05-20 16:38 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Lew <noone@lewscanon.com> - 2012-05-20 18:52 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Keith Thompson <kst-u@mib.org> - 2012-05-20 19:21 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) gazelle@shell.xmission.com (Kenny McCormack) - 2012-05-21 08:24 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Bill Leary" <Bill_Leary@msn.com> - 2012-05-23 14:34 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) nick_keighley_nospam@hotmail.com - 2012-05-24 00:49 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2012-05-20 21:46 -0600
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Lew <noone@lewscanon.com> - 2012-05-21 00:04 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) gazelle@shell.xmission.com (Kenny McCormack) - 2012-05-21 08:25 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-21 09:46 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) nick_keighley_nospam@hotmail.com - 2012-05-22 00:27 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) jacob navia <jacob@spamsink.net> - 2012-05-17 18:54 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Mark Storkamp <mstorkamp@yahoo.com> - 2012-05-17 12:06 -0500
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) markspace <-@.> - 2012-05-17 10:11 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 15:06 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Marius" <sorry@nospamfor.me> - 2012-05-17 17:32 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-17 23:45 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Marius" <sorry@nospamfor.me> - 2012-05-17 22:16 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-18 00:47 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) nick_keighley_nospam@hotmail.com - 2012-05-22 00:34 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-24 14:11 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-24 14:17 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Roedy Green <see_website@mindprod.com.invalid> - 2012-05-18 02:57 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-05-18 05:26 -0500
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-05-18 08:08 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 14:46 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) rossum <rossum48@coldmail.com> - 2012-05-18 12:25 +0100
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Gene Wirchenko <genew@ocis.net> - 2012-05-18 10:46 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-19 21:01 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:33 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Patricia Shanahan <pats@acm.org> - 2012-05-20 16:30 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Gene Wirchenko <genew@ocis.net> - 2012-05-20 20:36 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Kaz Kylheku <kaz@kylheku.com> - 2012-05-21 04:28 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Gene Wirchenko <genew@ocis.net> - 2012-05-21 10:02 -0700
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-21 09:55 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-21 09:49 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-05-21 10:08 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-21 10:45 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-21 11:13 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-21 11:19 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 18:10 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-21 10:00 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-05-21 10:10 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) falk@rahul.net (Edward A. Falk) - 2012-05-23 05:40 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Jim Janney <jjanney@shell.xmission.com> - 2012-05-23 08:46 -0600
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) "Skybuck Flying" <Windows7IsOK@DreamPC2006.com> - 2012-05-24 14:03 +0200
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) falk@rahul.net (Edward A. Falk) - 2012-05-26 00:52 +0000
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Jamie <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> - 2012-05-25 21:16 -0400
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) Nobody <nobody@nowhere.com> - 2012-05-26 17:19 +0100
Re: Oracle/Google demonstrate human beings cannot write 10 lines of code without making a mistake ;) nick_keighley_nospam@hotmail.com - 2012-05-27 04:49 -0700
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