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Groups > comp.lang.c > #6372

Re: filters

From Keith Thompson <kst-u@mib.org>
Newsgroups comp.lang.c
Subject Re: filters
Date 2011-06-18 11:55 -0700
Organization None to speak of
Message-ID <lnips3x935.fsf@nuthaus.mib.org> (permalink)
References <87d3ibxx7e.fsf@yun.yagibdah.de> <4DFC928A.3050309@gmail.com> <4dfced82$0$1936$bbae4d71@news.suddenlink.net> <slrnivpstt.pmg.angel+news@pearlgates.net>

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Angel <angel+news@spamcop.net> writes:
[...]
> It's written in a way that will work regardless of which character set
> the implementation uses, as long as the character codes for the decimal
> digits form an unbroken sequence. This is true in at least ASCII (and
> by extention, UTF8) and EBDIC, the two you are most likely to encounter.

And it's guaranteed by the C standard.  (Letters, on the other hand, are
not guaranteed to be contiguous, and in fact they aren't in EBCDIC --
or, typically, in character sets larger than ASCII.)

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Nokia
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"

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Thread

filters lee <lee@yun.yagibdah.de> - 2011-06-18 12:15 +0200
  Re: filters Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-06-18 11:37 +0100
    Re: filters cri@tiac.net (Richard Harter) - 2011-06-18 18:42 +0000
      Re: filters Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-06-18 23:13 +0100
        Re: filters cri@tiac.net (Richard Harter) - 2011-06-19 19:02 +0000
          Re: filters Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-06-19 21:16 +0100
            Re: filters lee <lee@yun.yagibdah.de> - 2011-06-20 16:06 +0200
              Re: filters Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-06-20 15:53 +0100
                Re: filters lee <lee@yun.yagibdah.de> - 2011-06-27 22:20 +0200
  Re: filters Francois Grieu <fgrieu@gmail.com> - 2011-06-18 13:56 +0200
    Re: filters "Bill Cunningham" <nospam@nspam.invalid> - 2011-06-18 14:24 -0400
      Re: filters Angel <angel+news@spamcop.net> - 2011-06-18 18:51 +0000
        Re: filters Keith Thompson <kst-u@mib.org> - 2011-06-18 11:55 -0700
          Re: filters Angel <angel+news@spamcop.net> - 2011-06-18 19:46 +0000
            Re: filters Keith Thompson <kst-u@mib.org> - 2011-06-18 13:18 -0700
      Re: filters Lew Pitcher <lpitcher@teksavvy.com> - 2011-06-18 14:55 -0400
  Re: filters James Kuyper <jameskuyper@verizon.net> - 2011-06-18 10:14 -0400
    Re: filters cri@tiac.net (Richard Harter) - 2011-06-18 19:58 +0000
    Re: filters Tim Rentsch <txr@alumni.caltech.edu> - 2011-06-19 16:09 -0700
      Re: filters Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-06-20 07:51 +0000
        Re: filters Tim Rentsch <txr@alumni.caltech.edu> - 2011-06-20 12:33 -0700
  Re: filters Nobody <nobody@nowhere.com> - 2011-06-18 15:25 +0100
  Re: filters gordonb.f4hvo@burditt.org (Gordon Burditt) - 2011-06-18 15:17 -0500

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