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Re: C: How to convert a \0 char into a dot for printf output?

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On 18.05.18 19.34, Andreas Schnellbacher wrote:
> On 18.05.18 19:26, James Moe wrote:
>
>> On 05/18/2018 09:30 AM, Andreas Schnellbacher wrote:
>>
>>> I've tried to write a function that should convert each zero char into a
>>> dot. The following function doesn't work and I don't know why.
>>
>> It is because you are removing the string terminator.
>> You need to add a terminator to each string where you replace the
>> terminator so that downstream string processing works as expected.
>
> Thanks. I see, that makes sense. Sure, that's why in another function
> double-zero-terminated strings exist.
>
That's not really true. In C, if you define a string like

"String1\0String2\0"
then in fact, the C compiler will create a string that adds an 
additional zero terminator after this string. Just as it does for any 
string.
What you really need to do is check for the DOUBLE occurrence of a zero 
terminator in order to find the end of the string. Something like this 
(untested):

static PSZ _zerotodot( PSZ pszString)
{
          PSZ            p = pszString;

    if (p != NULL)
       {
       while ((*p != 0) || (*(p+1) != 0)) // !a || !b == !(a && b)
          {
          if (*p == 0)
             *p = '.';
          p++;
          }
          *p = '.';  // treat the very last "visible" zero terminator
       }

    return pszString; // you want to return the conv. string, don't you ?
}

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C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-18 18:30 +0200
  Re: C: How to convert a \0 char into a dot for printf output? James Moe <jimoeDESPAM@sohnen-moe.com> - 2018-05-18 10:26 -0700
    Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-18 19:34 +0200
      Re: C: How to convert a \0 char into a dot for printf output? Lars Erdmann <lars.erdmann@arcor.de> - 2018-05-18 21:29 +0200
        Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-19 14:29 +0200
          Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-19 15:30 +0200
            Re: C: How to convert a \0 char into a dot for printf output? "Steven Levine" <steve53@nomail.earthlink.net> - 2018-05-19 09:43 -0500
              Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-19 18:11 +0200
                Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-20 13:37 +0200
                Re: C: How to convert a \0 char into a dot for printf output? Peter Flass <peter_flass@yahoo.com> - 2018-05-20 10:36 -0400
                Re: C: How to convert a \0 char into a dot for printf output? "Steven Levine" <steve53@nomail.earthlink.net> - 2018-05-20 10:49 -0500
                Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-20 18:46 +0200
                Re: C: How to convert a \0 char into a dot for printf output? "Steven Levine" <steve53@nomail.earthlink.net> - 2018-05-21 09:42 -0500
                Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-21 18:37 +0200
                Re: C: How to convert a \0 char into a dot for printf output? nospam_2018@efbe.prima.de - 2018-05-20 19:06 +0200
                Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-20 23:30 +0200
                Re: C: How to convert a \0 char into a dot for printf output? Peter Flass <peter_flass@yahoo.com> - 2018-05-20 18:03 -0400
                Re: C: How to convert a \0 char into a dot for printf output? Lars Erdmann <lars.erdmann@arcor.de> - 2018-05-21 09:07 +0200
                Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-21 11:30 +0200
                Re: C: How to convert a \0 char into a dot for printf output? "Steven Levine" <steve53@nomail.earthlink.net> - 2018-05-21 10:01 -0500
                Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-21 18:41 +0200
                Re: C: How to convert a \0 char into a dot for printf output? nospam_2018@efbe.prima.de - 2018-05-21 22:56 +0200
                Re: C: How to convert a \0 char into a dot for printf output? "Steven Levine" <steve53@nomail.earthlink.net> - 2018-05-22 10:00 -0500
                Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-22 21:37 +0200
                Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-22 21:41 +0200
                Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-23 23:56 +0200
                Re: C: How to convert a \0 char into a dot for printf output? nospam_2018@efbe.prima.de - 2018-05-22 21:44 +0200
          Re: C: How to convert a \0 char into a dot for printf output? Peter Flass <peter_flass@yahoo.com> - 2018-05-19 11:42 -0400
            Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-19 18:13 +0200
  Re: C: How to convert a \0 char into a dot for printf output? Andreas Kohl <ak120@arcor.de> - 2018-05-21 09:05 +0200
    Re: C: How to convert a \0 char into a dot for printf output? Andreas Schnellbacher <aschn@despammed.com> - 2018-05-21 11:35 +0200

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