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Groups > comp.lang.c++ > #71621
| From | Tim Rentsch <tr.17687@z991.linuxsc.com> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: two's complement idea |
| Date | 2020-01-27 02:20 -0800 |
| Organization | A noiseless patient Spider |
| Message-ID | <86r1zlgpyx.fsf@linuxsc.com> (permalink) |
| References | (9 earlier) <h926ovF25s3U6@mid.individual.net> <K2WWF.227060$vS6.23920@fx24.am4> <20200125134202.8939b7b4f1db1e1f59c1411d@cvine--nospam--.freeserve.co.uk> <zIYWF.84332$iK5.17923@fx34.am4> <r0k6ga$6ue$1@dont-email.me> |
Paavo Helde <myfirstname@osa.pri.ee> writes:
> On 25.01.2020 16:58, Bart wrote:
>
>> How would C++ help here, to avoid either that extra logic, or the use of
>> that goto? Here's the current outline (for_each_pwq is a macro expanding
>> to a regular for-header):
>>
>> L:
>> A;
>> for (...) {
>> B;
>> if (C) continue;
>> D;
>> goto L;
>> }
>
> This is an example of some pretty convoluted logic, not even because
> of 'goto', but rather because of multiple code execution paths (two
> non-default exit paths from inner loop body and no normal exit
> path). I would rewrite this along the lines:
>
> bool foobar(...) {
> for (...) {
> B;
> if (!C) {
> D;
> return false;
> }
> }
> return true;
> }
>
> while (true) {
> A;
> if (foobar(...)) {
> break;
> }
> }
To me this alternative is worse than the original. Just a
personal reaction. To give the peanut gallery something to hoot
about, and fya, the code (in C++!) may be recast as follows:
void
funky(){
A;
for (...) {
B;
if (C) continue;
D;
return funky();
}
}
(Let me say in advance I will disregard any sort of heated
discussion about the inadvisability of the self-recursion
here. I know a lot of people don't like it. Get over it.)
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Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-11-28 12:19 -0800
Re: two's complement idea "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2019-11-29 00:14 +0100
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2019-11-29 09:15 +0100
Re: two's complement idea Bo Persson <bo@bo-persson.se> - 2019-11-29 10:58 +0100
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2019-11-29 12:49 +0100
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-12-07 07:53 -0800
Re: two's complement idea Öö Tiib <ootiib@hot.ee> - 2019-12-07 08:22 -0800
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-01-10 20:44 -0800
Re: two's complement idea Öö Tiib <ootiib@hot.ee> - 2020-01-10 23:44 -0800
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-01-14 07:08 -0800
Re: two's complement idea Öö Tiib <ootiib@hot.ee> - 2020-01-14 08:42 -0800
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-01-21 02:09 -0800
Re: two's complement idea James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-01-21 05:14 -0800
Re: two's complement idea Daniel <danielaparker@gmail.com> - 2020-01-21 13:08 -0800
Re: two's complement idea James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-01-22 00:07 -0500
Re: two's complement idea Öö Tiib <ootiib@hot.ee> - 2020-01-21 23:21 -0800
Re: two's complement idea Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-01-22 01:51 -0800
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-22 11:28 +0100
Re: two's complement idea Bonita Montero <Bonita.Montero@gmail.com> - 2020-01-22 11:52 +0100
Re: two's complement idea Öö Tiib <ootiib@hot.ee> - 2020-01-22 04:47 -0800
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-04-02 07:19 -0700
Re: two's complement idea James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-04-02 08:07 -0700
Re: two's complement idea boltar@nowhere.org - 2020-01-21 16:44 +0000
Re: two's complement idea Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-01-21 20:01 +0000
Re: two's complement idea boltar@nowhere.org - 2020-01-22 11:26 +0000
Re: two's complement idea Christian Gollwitzer <auriocus@gmx.de> - 2020-01-22 20:04 +0100
Re: two's complement idea Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-01-22 11:30 -0800
Re: two's complement idea Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2020-01-22 19:57 +0000
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-23 10:03 +1300
Re: two's complement idea boltar@nowhere.org - 2020-01-23 09:24 +0000
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-24 07:29 +1300
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-23 10:03 +1300
Re: two's complement idea "Fred. Zwarts" <F.Zwarts@KVI.nl> - 2020-01-23 10:09 +0100
Re: two's complement idea boltar@nowhere.org - 2020-01-23 09:29 +0000
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-24 01:08 +0000
Re: two's complement idea boltar@nowhere.org - 2020-01-24 12:27 +0000
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-24 01:06 +0000
Re: two's complement idea Bo Persson <bo@bo-persson.se> - 2020-01-24 10:07 +0100
Re: two's complement idea Paavo Helde <myfirstname@osa.pri.ee> - 2020-01-24 11:36 +0200
Re: two's complement idea Öö Tiib <ootiib@hot.ee> - 2020-01-24 17:34 -0800
Re: two's complement idea Siri Cruise <chine.bleu@yahoo.com> - 2020-01-24 17:57 -0800
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-24 12:19 +0000
Re: two's complement idea Bo Persson <bo@bo-persson.se> - 2020-01-24 14:19 +0100
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-24 14:11 +0000
Re: two's complement idea Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-01-24 17:26 +0000
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-24 17:35 +0000
Re: two's complement idea Paavo Helde <myfirstname@osa.pri.ee> - 2020-01-24 22:27 +0200
Re: two's complement idea James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-01-24 23:21 -0500
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-25 11:06 +1300
Re: two's complement idea Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-01-24 22:12 +0000
Re: two's complement idea James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-01-24 23:24 -0500
Re: two's complement idea Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-01-25 09:04 +0000
Re: two's complement idea Öö Tiib <ootiib@hot.ee> - 2020-01-25 04:15 -0800
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-25 19:55 +0100
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-25 00:05 +0100
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-25 01:19 +0000
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-25 19:50 +1300
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-25 11:57 +0000
Re: two's complement idea Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2020-01-25 13:42 +0000
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-25 14:58 +0000
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-26 07:58 +1300
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-25 20:34 +0100
Re: two's complement idea Öö Tiib <ootiib@hot.ee> - 2020-01-25 12:41 -0800
Re: two's complement idea Paavo Helde <myfirstname@osa.pri.ee> - 2020-01-26 16:08 +0200
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-01-27 02:20 -0800
Re: two's complement idea Paavo Helde <myfirstname@osa.pri.ee> - 2020-01-27 15:03 +0200
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-02-15 06:44 -0800
Re: two's complement idea Paavo Helde <myfirstname@osa.pri.ee> - 2020-03-06 10:18 +0200
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-04-02 07:05 -0700
Re: two's complement idea Paavo Helde <myfirstname@osa.pri.ee> - 2020-04-02 20:03 +0300
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-04-04 12:37 -0700
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-26 07:45 +1300
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-25 19:56 +0000
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-26 09:49 +1300
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-25 21:33 +0000
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-26 11:00 +1300
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-25 22:23 +0000
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-26 11:46 +1300
Re: two's complement idea Paavo Helde <myfirstname@osa.pri.ee> - 2020-01-26 10:55 +0200
Re: two's complement idea Öö Tiib <ootiib@hot.ee> - 2020-01-26 03:47 -0800
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-01-27 01:28 -0800
Re: two's complement idea Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-01-25 22:22 +0000
Re: two's complement idea James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-01-25 18:24 -0500
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-26 12:54 +0100
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-26 12:44 +0000
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-26 14:58 +0100
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-26 14:53 +0000
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-26 19:10 +0100
Re: two's complement idea Robert Wessel <robertwessel2@yahoo.com> - 2020-01-26 13:20 -0600
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-26 20:51 +0000
Re: two's complement idea Robert Wessel <robertwessel2@yahoo.com> - 2020-01-26 21:02 -0600
Re: two's complement idea Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-01-26 19:06 -0800
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-27 18:50 +0000
Re: two's complement idea Robert Wessel <robertwessel2@yahoo.com> - 2020-01-27 14:18 -0600
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-27 22:13 +0100
Re: two's complement idea Bart <bc@freeuk.com> - 2020-01-27 21:38 +0000
Re: two's complement idea Robert Wessel <robertwessel2@yahoo.com> - 2020-01-27 19:37 -0600
Re: two's complement idea Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-01-27 19:15 -0800
Re: two's complement idea "Fred. Zwarts" <F.Zwarts@KVI.nl> - 2020-01-28 11:45 +0100
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-27 16:31 +1300
Re: two's complement idea Manfred <noname@add.invalid> - 2020-01-26 18:50 +0100
Re: two's complement idea Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-01-26 18:57 +0000
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-26 20:46 +0100
Re: two's complement idea Robert Wessel <robertwessel2@yahoo.com> - 2020-01-26 13:14 -0600
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-26 22:15 +0100
Re: two's complement idea Robert Wessel <robertwessel2@yahoo.com> - 2020-01-27 21:06 -0600
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-28 13:08 +0100
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-01-27 01:50 -0800
Re: two's complement idea Ian Collins <ian-news@hotmail.com> - 2020-01-27 08:21 +1300
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-25 20:14 +0100
Re: two's complement idea David Brown <david.brown@hesbynett.no> - 2020-01-25 20:12 +0100
Re: two's complement idea Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-01-27 07:48 -0800
Re: two's complement idea Bonita Montero <Bonita.Montero@gmail.com> - 2020-02-18 18:46 +0100
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