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Re: C naming conventions

From Lew Pitcher <lew.pitcher@digitalfreehold.ca>
Newsgroups comp.lang.c
Subject Re: C naming conventions
Date 2022-08-31 17:14 +0000
Organization A noiseless patient Spider
Message-ID <teo4te$1qe66$2@dont-email.me> (permalink)
References (1 earlier) <20220831013815.a0e201e18452d8a859800db9@gmail.com> <98bb37c0-c9cb-47b5-a7d2-a3423b7dfab1n@googlegroups.com> <87pmggqycm.fsf@bsb.me.uk> <tensff$1qe66$1@dont-email.me> <875yi8pdaq.fsf@bsb.me.uk>

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On Wed, 31 Aug 2022 17:50:53 +0100, Ben Bacarisse wrote:

> Lew Pitcher <lew.pitcher@digitalfreehold.ca> writes:
> 
>> On Wed, 31 Aug 2022 15:30:49 +0100, Ben Bacarisse wrote:
>>
>>> Thiago Adams <thiago.adams@gmail.com> writes:
>>> 
>>>> I was considering prefix when I had this problem.
>>>>
>>>> struct X {
>>>>  char * name; char email[100];
>>>> };
>>>>
>>>> if (strcmp(pX->name, "a") == ) {}
>>>> if (strcmp(pX->email, "a") == ) {}
>>>>
>>>> Both compiles and have the same syntax. Bust just one of then can
>>>> "explode" that is strcmp(pX->name, "a").
>>> 
>>> What do you mean "explode"?  (BTW, I'm assuming struct X *pX;)
>>
>> I won't see Thiago's reply.
>>
>> Consider
>>   struct X liveX = {NULL,"a"};
>>   struct X *pX = &liveX;
>>
>>   strcmp(pX->name,"a");
>>
>> What happens when strcmp() dereferences pX->name and tries to compare
>> the string at NULL to the string "a" ?
> 
> Is this what TA meant?  Does he want the naming convention to somew how
> prevent this?  Thanks for suggesting a meaning, but I am left with more
> questions...

I get the impression that TA is looking for someone to codify
"Systems Hungarian" notation[1] or something similar as either a C
language standard or a "shop" requirement for C programming.

In that case, the example would change to something like:
  struct X {
    char * pszName; char rgchszEmail[100];
  };

  struct X structX = {NULL,"a"};
  struct X *pX = &structX;

  strcmp(pX->pszName,"a");
  strcmp(pX->rgchszEmail,"a");

(Forgive me if I've mangled some of these identifiers. I abhor
Hungarian notation, and do not practice it myself.)

[1] https://en.wikipedia.org/wiki/Hungarian_notation#Systems_Hungarian_vs._Apps_Hungarian

-- 
Lew Pitcher
"In Skills, We Trust"

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Thread

C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-27 16:06 -0700
  Re: C naming conventions antispam@math.uni.wroc.pl - 2022-08-27 23:42 +0000
    Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-28 20:42 -0700
      Re: C naming conventions luser droog <luser.droog@gmail.com> - 2022-08-29 19:12 -0700
        Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-30 10:54 -0700
          Re: C naming conventions Opus <ifonly@youknew.org> - 2022-08-30 20:21 +0200
  Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-29 09:02 -0700
    Re: C naming conventions Opus <ifonly@youknew.org> - 2022-08-29 20:06 +0200
      Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-29 18:15 -0700
        Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-29 18:46 -0700
          Re: C naming conventions Blue-Maned_Hawk <bluemanedhawk@example.invalid> - 2022-09-06 02:21 -0400
            Re: C naming conventions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-09-06 10:52 +0100
            Re: C naming conventions Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-09-06 11:03 -0700
        Re: C naming conventions Opus <ifonly@youknew.org> - 2022-08-30 05:22 +0200
    Re: C naming conventions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-08-29 21:25 +0100
  Re: C naming conventions Anton Shepelev <anton.txt@gmail.com> - 2022-08-31 01:38 +0300
    Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-31 04:37 -0700
      Re: C naming conventions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-08-31 15:30 +0100
        Re: C naming conventions Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2022-08-31 14:50 +0000
          Re: C naming conventions scott@slp53.sl.home (Scott Lurndal) - 2022-08-31 14:57 +0000
            Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-31 08:44 -0700
          Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-31 08:36 -0700
            Re: C naming conventions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-08-31 17:54 +0100
          Re: C naming conventions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-08-31 17:50 +0100
            Re: C naming conventions Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2022-08-31 17:14 +0000
              Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-08-31 10:21 -0700
      Re: C naming conventions Anton Shepelev <anton.txt@gmail.com> - 2022-09-05 23:31 +0300
      Re: C naming conventions Bart <bc@freeuk.com> - 2022-09-05 21:44 +0100
        Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-09-05 18:00 -0700
      Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-09-11 09:22 -0700
        Re: C naming conventions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-09-11 20:33 +0100
          Re: C naming conventions Thiago Adams <thiago.adams@gmail.com> - 2022-09-11 13:18 -0700
          Re: C naming conventions luser droog <luser.droog@gmail.com> - 2022-09-11 21:16 -0700
            Re: C naming conventions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-09-12 11:51 +0100
  Re: C naming conventions luser droog <luser.droog@gmail.com> - 2022-08-30 19:36 -0700
  Re: C naming conventions kegs@provalid.com (Kent Dickey) - 2022-09-05 17:59 +0000
    Re: C naming conventions Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-09-12 07:12 -0700
      Re: C naming conventions kegs@provalid.com (Kent Dickey) - 2022-09-13 03:53 +0000
        Re: C naming conventions Kaz Kylheku <480-992-1380@kylheku.com> - 2022-09-13 05:38 +0000
          Re: C naming conventions scott@slp53.sl.home (Scott Lurndal) - 2022-09-13 13:30 +0000
        Re: C naming conventions Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-09-13 05:18 -0700
          Re: C naming conventions kegs@provalid.com (Kent Dickey) - 2022-09-13 22:55 +0000
            Re: C naming conventions "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-09-13 16:58 -0700
            Re: C naming conventions Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-09-14 08:05 -0700
  Re: C naming conventions Blue-Maned_Hawk <bluemanedhawk@example.invalid> - 2022-09-06 02:16 -0400
  Re: C naming conventions Bonita Montero <Bonita.Montero@gmail.com> - 2022-09-11 19:31 +0200
    Re: C naming conventions "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2022-09-12 00:45 -0700
  Re: C naming conventions Jonathan Harston <jgh@mdfs.net> - 2022-09-27 06:00 -0700
  Re: C naming conventions John Bode <jfbode1029@gmail.com> - 2022-09-30 13:02 -0500
    Re: C naming conventions Kaz Kylheku <864-117-4973@kylheku.com> - 2022-09-30 18:32 +0000
      Re: C naming conventions scott@slp53.sl.home (Scott Lurndal) - 2022-10-01 16:26 +0000
    Re: C naming conventions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-10-01 00:54 +0100
      Re: C naming conventions Blue-Maned_Hawk <bluemanedhawk@gmail.com> - 2022-10-01 00:35 -0400
        Re: C naming conventions Kaz Kylheku <864-117-4973@kylheku.com> - 2022-10-01 08:12 +0000
      Re: C naming conventions Kaz Kylheku <864-117-4973@kylheku.com> - 2022-10-01 08:11 +0000

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