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Groups > comp.lang.c > #55262

Re: Pointer to structure

From Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups comp.lang.c
Subject Re: Pointer to structure
Date 2014-12-21 22:36 +0000
Organization A noiseless patient Spider
Message-ID <87d27cocjc.fsf@bsb.me.uk> (permalink)
References (4 earlier) <chine.bleu-CBB10B.05052221122014@news.eternal-september.org> <lHzlw.145625$c73.56007@fx27.am4> <chine.bleu-EBDAE6.05545421122014@news.eternal-september.org> <rRAlw.160024$812.50144@fx20.am4> <54970945.1580718@news.xs4all.nl>

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raltbos@xs4all.nl (Richard Bos) writes:

> BartC <bc@freeuk.com> wrote:
>
>> How do you copy one pstring to another? The first byte will give the 
>> current length, but not the maximum that has been allocated; how will it 
>> know how much to copy?
>
> You don't. _It_ does, underneath the hood. Remember that this is not a
> Standard Pascal feature; it's a common but not completely standardised
> extension. (It may have made it into Pascal Extended; I never looked
> enough into that /contradictio in terminis/ to know or care.)

It did make it in.

<snip>
-- 
Ben.

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Thread

Pointer to structure Dexterr <dejangru@gmail.com> - 2014-12-21 03:16 -0800
  Re: Pointer to structure BartC <bc@freeuk.com> - 2014-12-21 12:09 +0000
    Re: Pointer to structure Siri Crews <chine.bleu@yahoo.com> - 2014-12-21 04:39 -0800
      Re: Pointer to structure BartC <bc@freeuk.com> - 2014-12-21 12:59 +0000
        Re: Pointer to structure Siri Crews <chine.bleu@yahoo.com> - 2014-12-21 05:05 -0800
          Re: Pointer to structure BartC <bc@freeuk.com> - 2014-12-21 13:12 +0000
            Re: Pointer to structure Siri Crews <chine.bleu@yahoo.com> - 2014-12-21 05:55 -0800
              Re: Pointer to structure BartC <bc@freeuk.com> - 2014-12-21 14:31 +0000
                Re: Pointer to structure Siri Crews <chine.bleu@yahoo.com> - 2014-12-21 06:47 -0800
                Re: Pointer to structure BartC <bc@freeuk.com> - 2014-12-21 20:10 +0000
                Re: Pointer to structure Geoff <geoff@invalid.invalid> - 2014-12-21 10:00 -0800
                Re: Pointer to structure Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-12-21 22:44 +0000
                Re: Pointer to structure raltbos@xs4all.nl (Richard Bos) - 2014-12-21 18:01 +0000
                Re: Pointer to structure BartC <bc@freeuk.com> - 2014-12-21 21:21 +0000
                Re: Pointer to structure raltbos@xs4all.nl (Richard Bos) - 2014-12-22 12:11 +0000
                Re: Pointer to structure Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-12-21 22:36 +0000
              Re: Pointer to structure Stephen Sprunk <stephen@sprunk.org> - 2014-12-27 17:56 -0600
                Re: Pointer to structure Siri Crews <chine.bleu@yahoo.com> - 2014-12-27 16:33 -0800
                Re: Pointer to structure Stephen Sprunk <stephen@sprunk.org> - 2015-01-15 12:29 -0600
            Re: Pointer to structure glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-12-22 00:50 +0000
              Re: Pointer to structure Richard Damon <Richard@Damon-Family.org> - 2014-12-21 20:19 -0500
                Re: Pointer to structure glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-12-22 06:23 +0000
                Re: Pointer to structure gazelle@shell.xmission.com (Kenny McCormack) - 2014-12-22 12:03 +0000
          Re: Pointer to structure gazelle@shell.xmission.com (Kenny McCormack) - 2014-12-21 13:20 +0000
            Re: Pointer to structure Siri Crews <chine.bleu@yahoo.com> - 2014-12-21 05:40 -0800
  Re: Pointer to structure Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-12-21 13:16 +0000
  Re: Pointer to structure Barry Schwarz <schwarzb@dqel.com> - 2014-12-21 10:02 -0800
  Re: Pointer to structure Keith Thompson <kst-u@mib.org> - 2014-12-21 12:25 -0800
    Re: Pointer to structure Dexterr <dejangru@gmail.com> - 2014-12-21 15:07 -0800

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