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Groups > comp.lang.c > #58906

Re: Code for strtol/strtoul

From jacob navia <jacob@jacob.remcomp.fr>
Newsgroups comp.lang.c
Subject Re: Code for strtol/strtoul
Date 2015-03-25 09:57 +0100
Organization lccwin
Message-ID <metta0$1q5$2@speranza.aioe.org> (permalink)
References <mejjh4$i17$1@speranza.aioe.org> <3ugPw.110758$Ak4.1277@fx03.iad> <kfnegodel4j.fsf@x-alumni2.alumni.caltech.edu> <metiiu$6gj$1@speranza.aioe.org> <cnf29uFlek5U2@mid.individual.net>

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Le 25/03/2015 07:18, Ian Collins a écrit :
> static unsigned long long
> Strtoull( const char* restrict str,
>            char** restrict      endptr,
>            int                  base,
>            bool*                isNegative )
> {
>    if( !checkPreconditions( str, base ) )
>    {
>      errno = EINVAL;
>      return 0;
>    }
>
>    if( endptr ) *endptr = (char*)str;
>
>    base = (base == 0) ? 10 : base;
>
>    while( isspace(*str) ) ++str;
>
>    checkForAndConsumeSign( &str, isNegative );

If base is zero and the first digit is zero the base is 8. This is not 
done here.

>
>    checkForAndConsumeHexPrefix( &str, base );

This should be done ONLY if the base is zero. For all other bases except 
16 the prefix "0x" is WRONG. But you have overwriten base so you can't 
know now.

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Thread

Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-21 12:09 +0100
  Re: Code for strtol/strtoul Bartc <bc@freeuk.com> - 2015-03-21 11:33 +0000
    Re: Code for strtol/strtoul Bartc <bc@freeuk.com> - 2015-03-21 11:47 +0000
    Re: Code for strtol/strtoul Greg Martin <greg.at.softsprocket@dot.com> - 2015-03-21 15:58 +0000
  Re: Code for strtol/strtoul Lőrinczy Zsigmond <nospam@for.me> - 2015-03-21 16:10 +0100
    Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-21 16:34 +0100
      Re: Code for strtol/strtoul Kaz Kylheku <kaz@kylheku.com> - 2015-03-21 16:10 +0000
    Re: Code for strtol/strtoul James Kuyper <jameskuyper@verizon.net> - 2015-03-21 12:53 -0400
    Re: Code for strtol/strtoul Keith Thompson <kst-u@mib.org> - 2015-03-21 14:18 -0700
      Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-21 22:46 +0100
        Re: Code for strtol/strtoul Keith Thompson <kst-u@mib.org> - 2015-03-21 15:23 -0700
          Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-21 23:42 +0100
            Re: Code for strtol/strtoul Keith Thompson <kst-u@mib.org> - 2015-03-21 16:06 -0700
              Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-22 00:29 +0100
                Re: Code for strtol/strtoul Keith Thompson <kst-u@mib.org> - 2015-03-21 20:18 -0700
      Re: Code for strtol/strtoul Keith Thompson <kst-u@mib.org> - 2015-03-21 15:54 -0700
        Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-22 08:34 +0100
        Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-24 19:42 -0700
          Re: Code for strtol/strtoul Keith Thompson <kst-u@mib.org> - 2015-03-25 10:40 -0700
            Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-25 16:17 -0700
              Re: Code for strtol/strtoul Keith Thompson <kst-u@mib.org> - 2015-03-25 20:27 -0700
                Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-28 09:08 -0700
  Re: Code for strtol/strtoul Greg Martin <greg.at.softsprocket@dot.com> - 2015-03-21 15:53 +0000
    Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-24 21:50 -0700
      Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-25 06:54 +0100
        Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-25 19:18 +1300
          Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-25 09:57 +0100
            Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-26 07:07 +1300
              Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-26 14:22 +1300
                Re: Code for strtol/strtoul asetofsymbols@gmail.com - 2015-03-26 00:17 -0700
                Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-28 12:07 +1300
                Re: Code for strtol/strtoul asetofsymbols@gmail.com - 2015-03-28 02:53 -0700
        Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-25 08:19 -0700
        Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-28 16:13 -0700
      Re: Code for strtol/strtoul Greg Martin <greg.at.softsprocket@dot.com> - 2015-03-25 13:42 +0000
        Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-25 17:20 -0700
          Re: Code for strtol/strtoul Kaz Kylheku <kaz@kylheku.com> - 2015-03-26 04:16 +0000
            Re: Code for strtol/strtoul asetofsymbols@gmail.com - 2015-03-26 00:27 -0700
              Re: Code for strtol/strtoul Kaz Kylheku <kaz@kylheku.com> - 2015-03-26 13:44 +0000
                Re: Code for strtol/strtoul fir <profesor.fir@gmail.com> - 2015-03-26 07:13 -0700
                Re: Code for strtol/strtoul asetofsymbols@gmail.com - 2015-03-26 08:30 -0700
                Re: Code for strtol/strtoul raltbos@xs4all.nl (Richard Bos) - 2015-03-29 15:13 +0000
            Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-28 09:47 -0700
          Re: Code for strtol/strtoul Greg Martin <greg.at.softsprocket@dot.com> - 2015-03-26 15:00 +0000
            Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-27 07:12 +1300
              Re: Code for strtol/strtoul Bartc <bc@freeuk.com> - 2015-03-26 19:11 +0000
                Re: Code for strtol/strtoul Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-03-26 15:09 -0700
                Re: Code for strtol/strtoul Richard Heathfield <rjh@cpax.org.uk> - 2015-03-26 22:13 +0000
                Re: Code for strtol/strtoul Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-03-26 15:20 -0700
                Re: Code for strtol/strtoul raltbos@xs4all.nl (Richard Bos) - 2015-03-30 09:59 +0000
                Re: Code for strtol/strtoul Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-03-30 06:38 -0700
                Re: Code for strtol/strtoul Richard Heathfield <rjh@cpax.org.uk> - 2015-03-30 14:41 +0100
                Re: Code for strtol/strtoul raltbos@xs4all.nl (Richard Bos) - 2015-04-06 12:52 +0000
                Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-27 18:07 +1300
                Re: Code for strtol/strtoul raltbos@xs4all.nl (Richard Bos) - 2015-03-29 15:17 +0000
                Re: Code for strtol/strtoul Kaz Kylheku <kaz@kylheku.com> - 2015-03-29 15:26 +0000
                Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-30 07:09 +1300
                Re: Code for strtol/strtoul raltbos@xs4all.nl (Richard Bos) - 2015-03-30 10:02 +0000
                Re: Code for strtol/strtoul Bartc <bc@freeuk.com> - 2015-03-29 18:53 +0100
            Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-28 15:38 -0700
  Re: Code for strtol/strtoul Robert Wessel <robertwessel2@yahoo.com> - 2015-03-21 16:48 -0500
  Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-22 20:45 +1300
    Re: Code for strtol/strtoul Ike Naar <ike@iceland.freeshell.org> - 2015-03-23 09:40 +0000
      Re: Code for strtol/strtoul Richard Heathfield <rjh@cpax.org.uk> - 2015-03-23 09:46 +0000
        Re: Code for strtol/strtoul Reinhardt Behm <rbehm@hushmail.com> - 2015-03-23 18:44 +0800
        Re: Code for strtol/strtoul Les Cargill <lcargill99@comcast.com> - 2015-03-23 20:29 -0500
          Re: Code for strtol/strtoul Richard Heathfield <rjh@cpax.org.uk> - 2015-03-24 08:12 +0000
      Re: Code for strtol/strtoul Robert Wessel <robertwessel2@yahoo.com> - 2015-03-23 05:27 -0500
      Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-24 07:03 +1300
        Re: Code for strtol/strtoul Ike Naar <ike@iceland.freeshell.org> - 2015-03-23 22:40 +0000
          Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-24 17:17 +1300
            Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-24 21:42 -0700
              Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-25 17:55 +1300
                Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-25 08:43 -0700
                Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-26 14:15 +1300
                Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-28 14:53 -0700
                Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-29 11:04 +1300
                Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-30 12:34 -0700
                Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-31 21:20 +1300
  Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-24 22:31 -0700
    Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-25 19:30 +1300
      Re: Code for strtol/strtoul Tim Rentsch <txr@alumni.caltech.edu> - 2015-03-25 08:24 -0700
  Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-25 22:43 +0100
    Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-27 19:18 +1300
    Re: Code for strtol/strtoul Steve Thompson <stevet810@gmail.com> - 2015-03-27 15:02 +0000
      Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-27 16:10 +0100
        Re: Code for strtol/strtoul Steve Thompson <stevet810@gmail.com> - 2015-03-27 22:44 +0000
        Re: Code for strtol/strtoul raltbos@xs4all.nl (Richard Bos) - 2015-03-29 15:18 +0000
          Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-29 17:35 +0200
    Re: Code for strtol/strtoul Robert Wessel <robertwessel2@yahoo.com> - 2015-03-28 03:57 -0500
      Re: Code for strtol/strtoul jacob navia <jacob@jacob.remcomp.fr> - 2015-03-28 14:09 +0100
  Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-28 22:58 +1300
    Re: Code for strtol/strtoul Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-03-28 11:33 +0000
      Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-29 08:49 +1300
        Re: Code for strtol/strtoul Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-03-28 22:11 +0000
          Re: Code for strtol/strtoul Ian Collins <ian-news@hotmail.com> - 2015-03-29 11:30 +1300

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