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Groups > comp.lang.java.programmer > #30153
| From | Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Bytes [Was: Re: Driving 7-Segment LEDs on Raspberry Pi] |
| Date | 2014-10-22 08:02 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <slrnm4ep45.fp3.avl@login.logic.tuwien.ac.at> (permalink) |
| References | (1 earlier) <m23g28$85a$1@speranza.aioe.org> <ccc4a51a-31ee-4099-9c63-0cc2a76c6dbc@googlegroups.com> <m258kt$7t0$1@speranza.aioe.org> <m25kdv$tou$1@dont-email.me> <m27jk3$shk$1@speranza.aioe.org> |
ĵess stone <j3ss.st0n3@gmail.com> wrote: > The problem is mainly the interaction with that and the signedness of > bytes. So you end up with binary 11001001 turning into > 10000000000000000000000001001001 [...] That's not how sign-propagation works. The 'int' version of the given byte-value is: 11111111_11111111_11111111_11001001 so, masking will safely bring back the original byte value. The problem with propagation is mostly a cosmetic one, namely that you casually need some extra casts: byte a = 1, b = 2, c; c = (byte)(a + b);
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Driving 7-Segment LEDs on Raspberry Pi javalaurence@gmail.com - 2014-10-20 01:28 -0700
Re: Driving 7-Segment LEDs on Raspberry Pi Gordon Levi <gordon@address.invalid> - 2014-10-21 01:42 +1100
Re: Driving 7-Segment LEDs on Raspberry Pi javalaurence@gmail.com - 2014-10-24 05:20 -0700
Re: Driving 7-Segment LEDs on Raspberry Pi Arne Vajhøj <arne@vajhoej.dk> - 2014-10-24 21:37 -0400
Re: Driving 7-Segment LEDs on Raspberry Pi ĵess stone <j3ss.st0n3@gmail.com> - 2014-10-20 17:16 +0000
Re: Driving 7-Segment LEDs on Raspberry Pi javalaurence@gmail.com - 2014-10-21 00:09 -0700
Re: Driving 7-Segment LEDs on Raspberry Pi ĵess stone <j3ss.st0n3@gmail.com> - 2014-10-21 09:22 +0000
Bytes [Was: Re: Driving 7-Segment LEDs on Raspberry Pi] Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-10-21 08:43 -0400
Re: Bytes [Was: Re: Driving 7-Segment LEDs on Raspberry Pi] ĵess stone <j3ss.st0n3@gmail.com> - 2014-10-22 06:42 +0000
Re: Bytes [Was: Re: Driving 7-Segment LEDs on Raspberry Pi] Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-10-22 08:02 +0000
Re: Bytes [Was: Re: Driving 7-Segment LEDs on Raspberry Pi] ĵess stone <j3ss.st0n3@gmail.com> - 2014-10-22 10:49 +0000
Re: Bytes [Was: Re: Driving 7-Segment LEDs on Raspberry Pi] Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-10-22 08:52 -0400
Re: Bytes [Was: Re: Driving 7-Segment LEDs on Raspberry Pi] ĵess stone <j3ss.st0n3@gmail.com> - 2014-10-22 14:00 +0000
Re: Bytes [Was: Re: Driving 7-Segment LEDs on Raspberry Pi] Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-10-22 10:43 -0400
Re: Bytes [Was: Re: Driving 7-Segment LEDs on Raspberry Pi] thinbluernime <thinbluernime3@gmail.com> - 2014-10-22 16:34 +0000
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