Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.java.programmer > #6513
| Path | csiph.com!x330-a1.tempe.blueboxinc.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!border3.nntp.dca.giganews.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.earthlink.com!news.earthlink.com.POSTED!not-for-mail |
|---|---|
| NNTP-Posting-Date | Sun, 24 Jul 2011 12:54:49 -0500 |
| Date | Sun, 24 Jul 2011 10:54:44 -0700 |
| From | Patricia Shanahan <pats@acm.org> |
| User-Agent | Mozilla/5.0 (Windows NT 5.2; WOW64; rv:5.0) Gecko/20110624 Thunderbird/5.0 |
| MIME-Version | 1.0 |
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Arithmetic overflow checking |
| References | <015aeb15-57db-48ab-9cd4-77f8448b632f@w24g2000yqw.googlegroups.com> <09fe171s46ilvq9qmn254dctunm6noh0ps@4ax.com> <f6ed8d08-bc7a-43e4-aecf-878511705353@j15g2000yqf.googlegroups.com> <4e262731$0$314$14726298@news.sunsite.dk> <j059o8$684$1@dont-email.me> <4e26300b$0$309$14726298@news.sunsite.dk> <cdyVp.5929$Vn5.2217@newsfe18.iad> <4e26b4ed$0$2501$db0fefd9@news.zen.co.uk> <f126e0ad-e1e5-47c8-949e-e38b3598d5ff@m5g2000prh.googlegroups.com> <4e28097f$0$2533$da0feed9@news.zen.co.uk> <f9939820-502d-4973-b008-0b62536ab967@m3g2000pre.googlegroups.com> <slrnj2ghv0.6gl.avl@gamma.logic.tuwien.ac.at> <7a23c9d2-508f-4dbd-af91-8cdf2a9764e1@p29g2000pre.googlegroups.com> <j09t06$4bo$1@dont-email.me> <slrnj2jc3u.6gl.avl@gamma.logic.tuwien.ac.at> <IMBWp.68441$5v5.52239@newsfe11.iad> <slrnj2mdoi.6gl.avl@gamma.logic.tuwien.ac.at> <j0g1i4$nus$1@speranza.aioe.org> <ueidnUcxuMPT2LHTnZ2dnUVZ_uKdnZ2d@earthlink.com> <j0hle9$7da$1@dont-email.me> |
| In-Reply-To | <j0hle9$7da$1@dont-email.me> |
| Content-Type | text/plain; charset=ISO-8859-1; format=flowed |
| Content-Transfer-Encoding | 7bit |
| Message-ID | <up6dnQu11_30wbHTnZ2dnUVZ_h2dnZ2d@earthlink.com> (permalink) |
| Lines | 27 |
| X-Usenet-Provider | http://www.giganews.com |
| NNTP-Posting-Host | 70.230.200.239 |
| X-Trace | sv3-dN7RdAKatstmo9vfsPsqg/NBqJoEY12FfB43dxFdiD3R7NEjtjfX88+gEHtVlxD8Fc7CLW/hwD5xR/U!YayZ+Mje8lvathfznt0Lcy+Ev/1f4lHrE33UHxws0kBAKityZEhjEaCPvV6nikEeVnIf9LKCgQj6!p3PFb8t6AcHbbMB91SvD+RQ8zR3gH1eZNtVq6CubpmXJ1I8= |
| X-Abuse-and-DMCA-Info | Please be sure to forward a copy of ALL headers |
| X-Abuse-and-DMCA-Info | Otherwise we will be unable to process your complaint properly |
| X-Postfilter | 1.3.40 |
| X-Original-Bytes | 3121 |
| Xref | x330-a1.tempe.blueboxinc.net comp.lang.java.programmer:6513 |
Show key headers only | View raw
On 7/24/2011 10:40 AM, markspace wrote:
> On 7/24/2011 9:16 AM, Patricia Shanahan wrote:
>> I think it might be better to create a marker interface
>> java.math.Arithmetic. I do like the idea of a fixed mapping from
>> operators to method names that are normal identifiers.
>
>
> I'd be concerned that a marker interface could be abused.
>
> public abstract class BaseNumber extends Number {
> public abstract BaseNumber add( Number n );
> public abstract BaseNumber subtract( Number n );
> public abstract BaseNumber mul( Number n );
> public abstract BaseNumber[] div( Number n );
> public abstract BaseNumber modulo( Number n );
> }
>
> Then restrict operator overloading to a class like BaseNumber and its
> subclasses. Some classes in the existing Java API like BigDecimal may
> need to also extend BaseNumber.
Whatever is done can, and will, be abused. People will just make their
non-arithmetic classes for which they want "+" extend BaseNumber, and
meanwhile complex would be forced to provide a meaningless conversion to
byte.
Patricia
Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar
Re: Arithmetic overflow checking Arne Vajhøj <arne@vajhoej.dk> - 2011-07-19 20:54 -0400
Re: Arithmetic overflow checking markspace <-@.> - 2011-07-19 18:07 -0700
Re: Arithmetic overflow checking Arne Vajhøj <arne@vajhoej.dk> - 2011-07-19 21:31 -0400
Re: Arithmetic overflow checking Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-07-20 07:36 -0300
Re: Arithmetic overflow checking RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-07-20 11:58 +0100
Re: Arithmetic overflow checking lewbloch <lewbloch@gmail.com> - 2011-07-20 09:51 -0700
Re: Arithmetic overflow checking RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-07-21 12:11 +0100
Re: Arithmetic overflow checking Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-21 12:43 +0000
Re: Arithmetic overflow checking Tom McGlynn <taqmcglynn@googlemail.com> - 2011-07-21 07:15 -0700
Re: Arithmetic overflow checking lewbloch <lewbloch@gmail.com> - 2011-07-21 07:35 -0700
Re: Arithmetic overflow checking Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-07-21 15:38 +0000
Re: Arithmetic overflow checking lewbloch <lewbloch@gmail.com> - 2011-07-21 09:03 -0700
Re: Arithmetic overflow checking Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-07-21 12:00 -0700
Re: Arithmetic overflow checking Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-07-22 17:16 +0000
Re: Arithmetic overflow checking David Lamb <dalamb@cs.queensu.ca> - 2011-07-23 11:28 -0400
Re: Arithmetic overflow checking Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-07-23 21:03 +0000
Re: Arithmetic overflow checking Henderson <h1@g1.f1> - 2011-07-23 22:55 -0400
Re: Arithmetic overflow checking Patricia Shanahan <pats@acm.org> - 2011-07-24 09:16 -0700
Re: Arithmetic overflow checking markspace <-@.> - 2011-07-24 10:40 -0700
Re: Arithmetic overflow checking Patricia Shanahan <pats@acm.org> - 2011-07-24 10:54 -0700
Re: Arithmetic overflow checking markspace <-@.> - 2011-07-24 11:09 -0700
Re: Arithmetic overflow checking Patricia Shanahan <pats@acm.org> - 2011-07-24 12:53 -0700
Re: Arithmetic overflow checking markspace <-@.> - 2011-07-24 15:15 -0700
Re: Arithmetic overflow checking Patricia Shanahan <pats@acm.org> - 2011-07-24 15:41 -0700
Re: Arithmetic overflow checking Henderson <h1@g1.f1> - 2011-07-25 03:21 -0400
Re: Arithmetic overflow checking Patricia Shanahan <pats@acm.org> - 2011-07-25 00:56 -0700
Re: Arithmetic overflow checking Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-07-25 07:03 -0300
Re: Arithmetic overflow checking Thomas Richter <thor@math.tu-berlin.de> - 2011-07-26 09:43 +0200
Re: Arithmetic overflow checking Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-07-25 11:06 +0000
Re: Arithmetic overflow checking Henderson <h1@g1.f1> - 2011-07-25 11:12 -0400
Re: Arithmetic overflow checking Patricia Shanahan <pats@acm.org> - 2011-07-25 09:09 -0700
Re: Arithmetic overflow checking Patricia Shanahan <pats@acm.org> - 2011-07-25 09:30 -0700
Re: Arithmetic overflow checking David Lamb <dalamb@cs.queensu.ca> - 2011-07-25 13:33 -0400
Re: Arithmetic overflow checking "John B. Matthews" <nospam@nospam.invalid> - 2011-07-26 03:04 -0400
Re: Arithmetic overflow checking Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-07-26 03:28 -0400
Re: Arithmetic overflow checking Henderson <h1@g1.f1> - 2011-07-26 04:53 -0400
Re: Arithmetic overflow checking Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-07-26 11:35 -0400
Re: Arithmetic overflow checking Patricia Shanahan <pats@acm.org> - 2011-07-26 10:48 -0700
Re: Arithmetic overflow checking Arne Vajhøj <arne@vajhoej.dk> - 2011-07-21 17:00 -0400
Re: Arithmetic overflow checking Arne Vajhøj <arne@vajhoej.dk> - 2011-07-20 19:50 -0400
Re: Arithmetic overflow checking Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-07-20 23:21 -0300
Re: Arithmetic overflow checking Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-21 12:52 +0000
Re: Arithmetic overflow checking Henderson <h1@g1.f1> - 2011-07-21 15:58 -0400
Re: Arithmetic overflow checking Arne Vajhøj <arne@vajhoej.dk> - 2011-07-21 17:06 -0400
Re: Arithmetic overflow checking Gene Wirchenko <genew@ocis.net> - 2011-07-20 14:35 -0700
Re: Arithmetic overflow checking Arne Vajhøj <arne@vajhoej.dk> - 2011-07-20 18:22 -0400
Re: Arithmetic overflow checking Gene Wirchenko <genew@ocis.net> - 2011-07-21 14:54 -0700
csiph-web