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Groups > comp.lang.c > #143204

Re: for ... else blocks

From Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups comp.lang.c, comp.lang.c++
Subject Re: for ... else blocks
Date 2019-04-18 20:36 +0100
Organization A noiseless patient Spider
Message-ID <87a7gn3y1y.fsf@bsb.me.uk> (permalink)
References (11 earlier) <AoFtE.111551$sX.36190@fx31.am4> <q97ce9$i93$1@dont-email.me> <QJItE.182616$a%2.84036@fx30.am4> <q99j3f$j3i$1@dont-email.me> <lR2uE.366976$coJ.297861@fx36.am4>

Cross-posted to 2 groups.

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Bart <bc@freeuk.com> writes:

> ... If writing C, then every so often you have to stop and work around
> the problem of C having only single-level breaks.

This is a case where what you call a work-around, I call an improvement.

I like to reason about code, and the label helps a lot.  I often ask,
particularly after loops, "what is the state of the program at this
point?" and the presence of a label is a big red flag telling me I have
to take partial execution into account.  It's not a huge advantage,
since multi-level breaks are rare and likely to be flagged by a big
comment, but the label is in just the right place for me to know I have
to think about gotos.

-- 
Ben.

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Thread

for ... else blocks "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2019-04-16 14:57 -0400
  Re: for ... else blocks "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2019-04-16 15:06 -0400
    Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-16 20:35 +0100
      Re: for ... else blocks "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2019-04-16 17:02 -0400
        Re: for ... else blocks David Brown <david.brown@hesbynett.no> - 2019-04-16 23:36 +0200
          Re: for ... else blocks "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2019-04-17 00:45 +0200
            Re: for ... else blocks Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-04-17 01:06 +0100
              Re: for ... else blocks "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2019-04-17 04:45 +0200
                Re: for ... else blocks David Brown <david.brown@hesbynett.no> - 2019-04-17 09:32 +0200
                Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-17 11:38 +0100
                Re: for ... else blocks David Brown <david.brown@hesbynett.no> - 2019-04-17 14:05 +0200
                Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-17 13:57 +0100
                Re: for ... else blocks David Brown <david.brown@hesbynett.no> - 2019-04-17 15:36 +0200
                Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-17 15:16 +0100
                Re: for ... else blocks David Brown <david.brown@hesbynett.no> - 2019-04-17 17:51 +0200
                Re: for ... else blocks "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2019-04-17 16:15 +0200
                Re: for ... else blocks "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2019-04-17 16:24 +0200
                Re: for ... else blocks David Brown <david.brown@hesbynett.no> - 2019-04-17 17:55 +0200
                Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-17 17:44 +0100
                Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-17 17:48 +0100
                Re: for ... else blocks fir <profesor.fir@gmail.com> - 2019-04-17 10:18 -0700
                Re: for ... else blocks fir <profesor.fir@gmail.com> - 2019-04-17 10:32 -0700
                Re: for ... else blocks fir <profesor.fir@gmail.com> - 2019-04-17 10:38 -0700
                Re: for ... else blocks fir <profesor.fir@gmail.com> - 2019-04-17 12:12 -0700
                Re: for ... else blocks fir <profesor.fir@gmail.com> - 2019-04-17 12:25 -0700
                Re: for ... else blocks fir <profesor.fir@gmail.com> - 2019-04-17 12:39 -0700
                Re: for ... else blocks fir <profesor.fir@gmail.com> - 2019-04-17 15:52 -0700
                Re: for ... else blocks fir <profesor.fir@gmail.com> - 2019-04-17 16:50 -0700
                Re: for ... else blocks fir <profesor.fir@gmail.com> - 2019-04-17 13:58 -0700
                Re: for ... else blocks David Brown <david.brown@hesbynett.no> - 2019-04-18 12:21 +0200
                Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-18 18:54 +0100
                Re: for ... else blocks Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-04-18 20:36 +0100
                Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-18 21:15 +0100
                Re: for ... else blocks Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-04-18 21:46 +0100
                Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-17 15:05 +0100
                Re: for ... else blocks "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2019-04-17 10:55 -0400
                Re: for ... else blocks Ike Naar <ike@iceland.freeshell.org> - 2019-04-18 05:57 +0000
                Re: for ... else blocks Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-04-17 20:43 +0100
  Re: for ... else blocks Chad <cdalten@gmail.com> - 2019-04-16 12:15 -0700
  Re: for ... else blocks Bart <bc@freeuk.com> - 2019-04-16 20:27 +0100
  Re: for ... else blocks Christian Gollwitzer <auriocus@gmx.de> - 2019-04-16 21:34 +0200
    Re: for ... else blocks "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2019-04-16 16:54 -0400
    Re: for ... else blocks David Brown <david.brown@hesbynett.no> - 2019-04-16 23:32 +0200

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