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| From | Lew <noone@lewscanon.com> |
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Java left shift and right shift operators. |
| Date | Tue, 26 Apr 2011 11:35:38 -0400 |
| Organization | albasani.net |
| Lines | 22 |
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Lew wrote: > Doesn't matter, the Java operator *is* defined for negative values. > > So the solution to Sanny's problem is: > > output = n >> shiftBy; OK, that is a trick answer because it's wrong. True, the shift operator is defined for negative shift values, but those get masked to positive shift values regardless and don't give the OP's desired result. Consider shifting an int by either 12 or -12 12 = 0b00001100 -12 = 0b11110100 The bottom five bits of the latter evaluate to 20. -- Lew Honi soit qui mal y pense. http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg
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Java left shift and right shift operators. Sanny <softtanks22@hotmail.com> - 2011-04-26 00:38 -0700
Re: Java left shift and right shift operators. Lothar Kimmeringer <news200709@kimmeringer.de> - 2011-04-26 09:55 +0200
Re: Java left shift and right shift operators. Patricia Shanahan <pats@acm.org> - 2011-04-26 03:16 -0700
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-26 09:49 -0400
Re: Java left shift and right shift operators. Travers Naran <tnaran@gmail.com> - 2011-04-26 07:09 -0700
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-26 11:21 -0400
Re: Java left shift and right shift operators. Martin Gregorie <martin@address-in-sig.invalid> - 2011-04-26 15:37 +0000
Re: Java left shift and right shift operators. Sanny <softtanks22@hotmail.com> - 2011-04-26 09:32 -0700
Re: Java left shift and right shift operators. Patricia Shanahan <pats@acm.org> - 2011-04-26 11:09 -0700
Re: Java left shift and right shift operators. Patricia Shanahan <pats@acm.org> - 2011-04-26 13:09 -0700
Re: Java left shift and right shift operators. Travers Naran <tnaran@gmail.com> - 2011-04-26 22:40 -0700
Re: Java left shift and right shift operators. Patricia Shanahan <pats@acm.org> - 2011-04-27 05:34 -0700
Re: Java left shift and right shift operators. Owen Jacobson <angrybaldguy@gmail.com> - 2011-04-28 00:37 -0400
Re: Java left shift and right shift operators. Patricia Shanahan <pats@acm.org> - 2011-04-28 16:02 -0700
Re: Java left shift and right shift operators. Michael Wojcik <mwojcik@newsguy.com> - 2011-04-28 19:22 -0400
Re: Java left shift and right shift operators. bugbear <bugbear@trim_papermule.co.uk_trim> - 2011-04-27 14:28 +0100
Re: Java left shift and right shift operators. Thomas Richter <thor@math.tu-berlin.de> - 2011-04-30 00:02 +0200
Re: Java left shift and right shift operators. Roedy Green <see_website@mindprod.com.invalid> - 2011-04-27 19:25 -0700
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-27 23:08 -0400
Re: Java left shift and right shift operators. Sanny <softtanks22@hotmail.com> - 2011-04-26 02:04 -0700
Re: Java left shift and right shift operators. Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-04-26 07:34 -0400
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-26 09:47 -0400
Re: Java left shift and right shift operators. Patricia Shanahan <pats@acm.org> - 2011-04-27 09:23 -0700
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-27 14:49 -0400
Re: Java left shift and right shift operators. Paul Cager <paul.cager@googlemail.com> - 2011-04-27 17:28 -0700
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-27 22:06 -0400
Re: Java left shift and right shift operators. Sanny <softtanks22@hotmail.com> - 2011-04-26 09:39 -0700
Re: Java left shift and right shift operators. Patricia Shanahan <pats@acm.org> - 2011-04-26 11:17 -0700
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-26 14:55 -0400
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-26 14:57 -0400
Re: Java left shift and right shift operators. Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2011-04-26 21:38 +0200
Re: Java left shift and right shift operators. Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-04-26 23:32 +0000
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-27 00:08 -0400
Re: Java left shift and right shift operators. Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-04-27 06:57 +0000
Re: Java left shift and right shift operators. Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-04-27 07:00 -0300
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-27 08:42 -0400
Re: Java left shift and right shift operators. Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-04-27 14:03 +0000
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-27 14:54 -0400
Re: Java left shift and right shift operators. Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-04-26 21:14 -0400
Re: Java left shift and right shift operators. Travers Naran <tnaran@gmail.com> - 2011-04-26 07:30 -0700
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-26 11:24 -0400
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-26 11:35 -0400
Re: Java left shift and right shift operators. Sanny <softtanks22@hotmail.com> - 2011-04-26 09:46 -0700
Re: Java left shift and right shift operators. Lew <noone@lewscanon.com> - 2011-04-26 15:02 -0400
Re: Java left shift and right shift operators. Lothar Kimmeringer <news200709@kimmeringer.de> - 2011-04-28 09:14 +0200
Re: Java left shift and right shift operators. Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-04-26 08:41 -0400
Re: Java left shift and right shift operators. Robert Klemme <shortcutter@googlemail.com> - 2011-04-26 22:06 +0200
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