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Re: Challenge: tightest code to find-replace a string

From Ian Collins <ian-news@hotmail.com>
Newsgroups comp.lang.c
Subject Re: Challenge: tightest code to find-replace a string
Date 2014-06-08 21:20 +1200
Message-ID <bvio71F41odU3@mid.individual.net> (permalink)
References <lmrer6$4l3$1@dont-email.me> <slrn3vfslp2mhd.n1p.ike@iceland.freeshell.org> <lmrtes$f8j$1@dont-email.me>

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Noob wrote:
> Ike Naar wrote:
>
>>   while (stop = strstr(start, find), stop != NULL)
>
> This doesn't "feel" very idiomatic.
>
> Perhaps
>
>    while ((stop = strstr(start, find)) != NULL)
>
> or even
>
>    while (stop = strstr(start, find))
>
> The second one raises warnings with most compilers.
>
>    while ((stop = strstr(start, find)))
>
> may shut them up.

Or just write:

     const size_t findSize = strlen(find);
     const char* stop      = strstr(start, find);

     while( stop )
     {
       fwrite(start, 1, stop - start, outFile);
       fputs(replace, outFile);
       start = stop + findSize;
       k++;
       stop = strstr(start, find);
     }

     fputs(start, outFile);

-- 
Ian Collins

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Thread

Challenge: tightest code to find-replace a string DFS <nospam@dfs.com> - 2014-06-06 00:08 -0400
  Re: Challenge: tightest code to find-replace a string DFS <nospam@dfs.com> - 2014-06-06 04:34 -0400
    Re: Challenge: tightest code to find-replace a string Jorgen Grahn <grahn+nntp@snipabacken.se> - 2014-06-06 10:04 +0000
    Re: Challenge: tightest code to find-replace a string Mark Storkamp <mstorkamp@yahoo.com> - 2014-06-06 07:27 -0500
    Re: Challenge: tightest code to find-replace a string Robert Wessel <robertwessel2@yahoo.com> - 2014-06-06 11:55 -0500
      Re: Challenge: tightest code to find-replace a string Johannes Bauer <dfnsonfsduifb@gmx.de> - 2014-06-06 20:47 +0200
  Re: Challenge: tightest code to find-replace a string Ike Naar <ike@iceland.freeshell.org> - 2014-06-06 06:05 +0000
    Re: Challenge: tightest code to find-replace a string Noob <root@127.0.0.1> - 2014-06-06 10:17 +0200
      Re: Challenge: tightest code to find-replace a string Ian Collins <ian-news@hotmail.com> - 2014-06-08 21:20 +1200
  Re: Challenge: tightest code to find-replace a string Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-06-06 14:41 +0100
    Re: Challenge: tightest code to find-replace a string "BartC" <bc@freeuk.com> - 2014-06-06 16:29 +0100
      Re: Challenge: tightest code to find-replace a string Jorgen Grahn <grahn+nntp@snipabacken.se> - 2014-06-06 17:27 +0000
      Re: Challenge: tightest code to find-replace a string Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-06-06 22:16 +0100
        Re: Challenge: tightest code to find-replace a string "BartC" <bc@freeuk.com> - 2014-06-06 23:26 +0100
          Re: Challenge: tightest code to find-replace a string Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-06-06 23:38 +0100
    Re: Challenge: tightest code to find-replace a string Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-06-06 08:31 -0700
      Re: Challenge: tightest code to find-replace a string Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-06-06 22:12 +0100
    Re: Challenge: tightest code to find-replace a string Chad <cdalten@gmail.com> - 2014-06-07 12:19 -0700
      Re: Challenge: tightest code to find-replace a string Chad <cdalten@gmail.com> - 2014-06-07 13:38 -0700
        Re: Challenge: tightest code to find-replace a string raltbos@xs4all.nl (Richard Bos) - 2014-06-08 10:34 +0000
    Re: Challenge: tightest code to find-replace a string DFS <nospam@dfs.com> - 2014-06-07 18:30 -0400
      Re: Challenge: tightest code to find-replace a string Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-06-08 13:09 +0100
        Re: Challenge: tightest code to find-replace a string DFS <nospam@dfs.com> - 2014-06-08 12:42 -0400
          Re: Challenge: tightest code to find-replace a string Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-06-09 01:44 +0100
            Re: Challenge: tightest code to find-replace a string Siri Crews <chine.bleu@yahoo.com> - 2014-06-08 22:15 -0700
              Re: Challenge: tightest code to find-replace a string Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-06-09 12:58 +0100
            Re: Challenge: tightest code to find-replace a string Ike Naar <ike@iceland.freeshell.org> - 2014-06-09 06:40 +0000
              Re: Challenge: tightest code to find-replace a string Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-06-09 13:04 +0100
                Re: Challenge: tightest code to find-replace a string "BartC" <bc@freeuk.com> - 2014-06-09 15:27 +0100
                Re: Challenge: tightest code to find-replace a string Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-06-09 16:22 +0100
                Re: Challenge: tightest code to find-replace a string "BartC" <bc@freeuk.com> - 2014-06-09 18:06 +0100
                Re: Challenge: tightest code to find-replace a string "BartC" <bc@freeuk.com> - 2014-06-09 22:38 +0100
      Re: Challenge: tightest code to find-replace a string Tim Rentsch <txr@alumni.caltech.edu> - 2014-06-10 00:57 -0700
  Re: Challenge: tightest code to find-replace a string DFS <nospam@dfs.com> - 2014-06-07 17:36 -0400
    Re: Challenge: tightest code to find-replace a string "BartC" <bc@freeuk.com> - 2014-06-08 09:57 +0100
      Re: Challenge: tightest code to find-replace a string DFS <nospam@dfs.com> - 2014-06-08 12:43 -0400
        Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-08 15:27 -0700
        Re: Challenge: tightest code to find-replace a string "BartC" <bc@freeuk.com> - 2014-06-09 10:02 +0100
          Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-09 08:03 -0700
    Re: Challenge: tightest code to find-replace a string Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-06-08 04:43 -0700
      Re: Challenge: tightest code to find-replace a string DFS <nospam@dfs.com> - 2014-06-08 13:26 -0400
      Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-08 15:24 -0700
        Re: Challenge: tightest code to find-replace a string Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-06-09 08:39 -0700
          Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-09 08:57 -0700
            Re: Challenge: tightest code to find-replace a string Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-06-09 09:52 -0700
              Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-09 11:25 -0700
                Re: Challenge: tightest code to find-replace a string Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-06-09 13:42 -0700
                Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-09 15:02 -0700
                Re: Challenge: tightest code to find-replace a string Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-06-09 16:04 -0700
                Re: Challenge: tightest code to find-replace a string raltbos@xs4all.nl (Richard Bos) - 2014-06-10 10:23 +0000
          Re: Challenge: tightest code to find-replace a string raltbos@xs4all.nl (Richard Bos) - 2014-06-09 16:57 +0000
            Re: Challenge: tightest code to find-replace a string raltbos@xs4all.nl (Richard Bos) - 2014-06-10 10:06 +0000
  Re: Challenge: tightest code to find-replace a string "Chris M. Thomasson" <no@spam.invalid> - 2014-06-09 12:43 -0700
    Re: Challenge: tightest code to find-replace a string "Chris M. Thomasson" <no@spam.invalid> - 2014-06-09 14:32 -0700
      Re: Challenge: tightest code to find-replace a string "Chris M. Thomasson" <no@spam.invalid> - 2014-06-09 16:09 -0700
      Re: Challenge: tightest code to find-replace a string James Kuyper <jameskuyper@verizon.net> - 2014-06-09 21:35 -0400
    Re: Challenge: tightest code to find-replace a string DFS <nospam@dfs.com> - 2014-06-10 09:39 -0400
      Re: Challenge: tightest code to find-replace a string James Kuyper <jameskuyper@verizon.net> - 2014-06-10 11:26 -0400
      Re: Challenge: tightest code to find-replace a string raltbos@xs4all.nl (Richard Bos) - 2014-06-11 16:16 +0000
      Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-11 09:25 -0700
        Re: Challenge: tightest code to find-replace a string Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-06-11 13:48 -0700
          Re: Challenge: tightest code to find-replace a string "BartC" <bc@freeuk.com> - 2014-06-11 22:04 +0100
            Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-11 14:59 -0700
          Re: Challenge: tightest code to find-replace a string Ike Naar <ike@iceland.freeshell.org> - 2014-06-11 21:35 +0000
          Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-11 14:56 -0700
            Re: Challenge: tightest code to find-replace a string Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-06-12 02:24 -0700
              Re: Challenge: tightest code to find-replace a string Keith Thompson <kst-u@mib.org> - 2014-06-12 09:09 -0700
                Re: Challenge: tightest code to find-replace a string Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-06-13 00:40 -0700
                Re: Challenge: tightest code to find-replace a string "BartC" <bc@freeuk.com> - 2014-06-13 09:17 +0100
  Re: Challenge: tightest code to find-replace a string "Chris M. Thomasson" <no@spam.invalid> - 2014-06-14 13:12 -0700

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