Re: int a = a (Was: Bart's Language)

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From	Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups	comp.lang.c
Subject	Re: int a = a (Was: Bart's Language)
Date	Thu, 20 Mar 2025 01:32:54 -0700
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Rosario19 <Ros@invalid.invalid> writes:

> On Tue, 18 Mar 2025 23:52:20 -0700, Tim Rentsch  wrote:
>
>> (Kenny McCormack) writes:
>>
>>> David Brown wrote:
>>> ...
>>>
>>>>> gcc won't warn until you say '-Wextra', and then only for:
>>>>>
>>>>>    int a = a + 1;
>>>>
>>>> People would not normally write "int a = a;".  It is used as a
>>>> common idiom meaning "I know it is not clear to the compiler
>>>> that the variable is always initialised before use, but /I/
>>>> know it is - so disable the use-without-initialisation warnings
>>>> for this variable".  So it makes perfect sense for the compiler
>>>> not to warn about it!
>>
>> An addle-brained view.  Anyone who thinks that should be forcibly
>> removed from any activity involving software development.
>>
>>> Wouldn't it just be easier and clearer to write:  int a = 0;
>>> and be done with it?
>>
>> There are two problems:  one, the semantics are different;  and
>> two, the impression given of the author's intent is different.
>> It's kind of like saying "isn't it just easier and clearer to
>> write 'red' rather than 'yellow'?"  Writing 'int a = 0;' might be
>> better or it might be worse, depending on one's point of view,
>> but it shouldn't be considered either more clear or less clear,
>> because it isn't saying the same thing.
>
> int a=a;
> for me initialize "a" variable with a value the compiler found
> right as in
>
> int a;
>
> only possibly silence compiler warning for variable not
> initializated

If you want to take it that way, there is nothing wrong with
that.

But it's a mistake to assume everyone else will also take it to
mean the same thing that you do.

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Bart's Language bart <bc@freeuk.com> - 2025-03-17 23:51 +0000
  Re: Bart's Language antispam@fricas.org (Waldek Hebisch) - 2025-03-18 12:17 +0000
    Re: Bart's Language bart <bc@freeuk.com> - 2025-03-18 13:54 +0000
      Re: Bart's Language antispam@fricas.org (Waldek Hebisch) - 2025-03-18 15:10 +0000
        Re: Bart's Language bart <bc@freeuk.com> - 2025-03-18 15:45 +0000
          Re: Bart's Language David Brown <david.brown@hesbynett.no> - 2025-03-18 17:31 +0100
            int a = a (Was: Bart's Language) gazelle@shell.xmission.com (Kenny McCormack) - 2025-03-18 18:04 +0000
              Re: int a = a (Was: Bart's Language) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-03-18 19:36 +0100
                Re: int a = a (Was: Bart's Language) Kaz Kylheku <643-408-1753@kylheku.com> - 2025-03-18 19:11 +0000
                Re: int a = a (Was: Bart's Language) David Brown <david.brown@hesbynett.no> - 2025-03-19 15:56 +0100
                Re: int a = a (Was: Bart's Language) scott@slp53.sl.home (Scott Lurndal) - 2025-03-19 16:38 +0000
                Re: int a = a (Was: Bart's Language) "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-19 14:29 -0700
                Re: int a = a (Was: Bart's Language) David Brown <david.brown@hesbynett.no> - 2025-03-20 09:39 +0100
                Re: int a = a (Was: Bart's Language) bart <bc@freeuk.com> - 2025-03-20 11:59 +0000
                Re: int a = a (Was: Bart's Language) David Brown <david.brown@hesbynett.no> - 2025-03-20 15:46 +0100
                Re: int a = a (Was: Bart's Language) wij <wyniijj5@gmail.com> - 2025-03-20 23:13 +0800
                Re: int a = a (Was: Bart's Language) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-03-20 02:02 -0700
                Re: int a = a (Was: Bart's Language) David Brown <david.brown@hesbynett.no> - 2025-03-20 15:57 +0100
                Re: int a = a (Was: Bart's Language) Kaz Kylheku <643-408-1753@kylheku.com> - 2025-03-19 17:07 +0000
                Re: int a = a Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-03-19 13:34 -0700
                Re: int a = a Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-03-20 02:54 -0700
                Re: int a = a Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-03-20 03:20 -0700
                Re: int a = a David Brown <david.brown@hesbynett.no> - 2025-03-20 16:22 +0100
                Re: int a = a Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-03-20 12:46 -0700
                Re: int a = a David Brown <david.brown@hesbynett.no> - 2025-03-21 10:44 +0100
                Re: int a = a Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-03-21 12:23 -0700
                Re: int a = a David Brown <david.brown@hesbynett.no> - 2025-03-21 21:46 +0100
                Re: int a = a Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-03-22 13:59 -0700
                Re: int a = a Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-03-22 15:37 -0700
                Re: int a = a Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-04-28 09:39 -0700
                Re: int a = a Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-04-29 13:12 -0700
                Re: int a = a Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-04-29 13:34 -0700
                Re: int a = a David Brown <david.brown@hesbynett.no> - 2025-03-20 15:42 +0100
              Re: int a = a (Was: Bart's Language) scott@slp53.sl.home (Scott Lurndal) - 2025-03-18 19:37 +0000
              Re: int a = a (Was: Bart's Language) David Brown <david.brown@hesbynett.no> - 2025-03-18 20:51 +0100
                Re: int a = a (Was: Bart's Language) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2025-03-18 23:27 +0100
                Re: int a = a (Was: Bart's Language) David Brown <david.brown@hesbynett.no> - 2025-03-19 11:40 +0100
              Re: int a = a (Was: Bart's Language) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-03-18 23:52 -0700
                Re: int a = a Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-03-19 01:55 -0700
                Re: int a = a Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-04-27 13:41 -0700
                Re: int a = a (Was: Bart's Language) David Brown <david.brown@hesbynett.no> - 2025-03-19 11:43 +0100
                Re: int a = a (Was: Bart's Language) Rosario19 <Ros@invalid.invalid> - 2025-03-19 13:23 +0100
                Re: int a = a (Was: Bart's Language) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-03-20 01:32 -0700
          Re: Bart's Language antispam@fricas.org (Waldek Hebisch) - 2025-03-20 22:55 +0000
            Re: Bart's Language Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-03-20 16:22 -0700
              Re: Bart's Language antispam@fricas.org (Waldek Hebisch) - 2025-03-22 14:37 +0000
                Re: Bart's Language James Kuyper <jameskuyper@alumni.caltech.edu> - 2025-03-22 11:41 -0400
                Re: Bart's Language antispam@fricas.org (Waldek Hebisch) - 2025-03-22 16:52 +0000
                Re: Bart's Language James Kuyper <jameskuyper@alumni.caltech.edu> - 2025-03-22 20:12 -0400
                By definition... (Was: Bart's Language) gazelle@shell.xmission.com (Kenny McCormack) - 2025-03-23 17:20 +0000
              Re: Bart's Language Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-04-27 11:53 -0700
                Re: Bart's Language Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2025-04-27 14:29 -0700
                Re: Bart's Language Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-01-06 14:04 -0800
                Re: Bart's Language Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-01-06 17:12 -0800
                Re: Bart's Language Tim Rentsch <tr.17687@z991.linuxsc.com> - 2026-03-06 09:04 -0800
        Re: Bart's Language bart <bc@freeuk.com> - 2025-03-18 22:19 +0000
          Re: Bart's Language antispam@fricas.org (Waldek Hebisch) - 2025-03-20 22:38 +0000
            Re: Bart's Language Kaz Kylheku <643-408-1753@kylheku.com> - 2025-03-20 23:45 +0000
              Re: Bart's Language bart <bc@freeuk.com> - 2025-03-21 00:56 +0000
                Re: Bart's Language Kaz Kylheku <643-408-1753@kylheku.com> - 2025-03-21 17:47 +0000
                Re: Bart's Language Tim Rentsch <tr.17687@z991.linuxsc.com> - 2025-03-22 07:12 -0700
            Re: Bart's Language bart <bc@freeuk.com> - 2025-03-21 00:33 +0000

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