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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 | 2025-03-20 01:32 -0700 |
| Organization | A noiseless patient Spider |
| Message-ID | <868qp0p0eh.fsf@linuxsc.com> (permalink) |
| References | (2 earlier) <vrc4eb$2p28t$1@dont-email.me> <vrc75b$2r4lt$1@dont-email.me> <vrccjb$b3m6$1@news.xmission.com> <86zfhhpl5n.fsf@linuxsc.com> <pjdltjh6tsgu9nt3oov0uhgqtla7tm69ek@4ax.com> |
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 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 (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 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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