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Groups > comp.lang.c > #129871
| From | Ian Collins <ian-news@hotmail.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: gcc_centric C code |
| Date | 2018-04-28 07:32 +1200 |
| Message-ID | <fkhc61Fi91uU3@mid.individual.net> (permalink) |
| References | (16 earlier) <BcsEC.25942$ga6.7856@fx24.am4> <fkf220Fi91uU1@mid.individual.net> <lGsEC.12310$Pv4.1229@fx23.am4> <fkg61mFi91uU2@mid.individual.net> <LgDEC.29568$Hc3.19774@fx30.am4> |
On 04/27/2018 10:51 PM, bartc wrote:
> On 27/04/2018 09:41, Ian Collins wrote:
>> On 04/27/2018 10:48 AM, bartc wrote:
>
>>> (Out of interest, what happens when you compile that pcc64.c file I
>>> linked to earlier [1] on that other machine, assuming it's 64-bit
>>> capable?
>>
>> It breaks the current version of the compiler, an older version rejects
>> it with 3101 warnings/errors. Mostly along the lines of
>>
>> "pcc64.c", line 2785: cannot use an address to initialize a field of a
>> packed struct (#pragma pack)
>>
>> and
>>
>> "pcc64.c", line 16749: improper member use: mutable
>
> (Warning or error? And what's wrong with it? ('mutable' is a member of
> an anonymous union.))
C99 doesn't have anonymous unions... That compiler's default mode is
roughly equivalent to "gcc -std=c99 -pedantic"
>> and
>>
>> "pcc64.c", line 3395: warning: initialization type mismatch
>
> OK, thanks. If I add as many options as I can find, I get roughly 2000
> warnings (mostly about unused stuff), for example:
>
> gcc -m64 -Wall -Wextra -Wformat=2 -Wno-format-nonliteral -Wshadow
> -Wpointer-arith -Wcast-qual -Wmissing-prototypes -Wno-missing-braces
> -std=c11 -D_GNU_SOURCE pcc64.c -opcc64.exe
>
> but no errors. The pcc64.exe program is produced, and it will run,
> giving a usage message.
>
> What options did you use? (Pretty strict I would bet.)
>
> With C compilers as I normally use them:
>
> gcc (5.1.0 Windows) 0 warnings
> Pelles C 500 warnings (unused labels, unreachable code)
> lccwin 30 warnings
> MSVC 3 warnings
> Tiny C 0 warnings (don't know if it does warnings)
> bcc --- (does not generate warnings)
> gcc (4.4.2 Linux) 1 warning (overflow in numeric constant)
> gcc (6.2.0 Linux) 4 warnings (printf argument mismatch)
> DMC 23 warnings (possible unintended assignments)
>
> It's nice to see how much in agreement C compilers can be about what
> might be amiss in a program!
>
> > It breaks the current version of the compiler
>
> What do you mean by it breaks it?
It warns that an internal static error checker encountered an unexpected
error. It does produce an executable output with 49 warnings, its
default mode is c11.
--
Ian
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gcc_centric C code bartc <bc@freeuk.com> - 2018-04-25 16:21 +0100
gcc_centric C code Chad <cdalten@gmail.com> - 2018-04-25 08:34 -0700
Re: gcc_centric C code Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-04-25 16:41 +0100
Re: gcc_centric C code Spiros Bousbouras <spibou@gmail.com> - 2018-04-25 16:19 +0000
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-25 18:02 +0100
Re: gcc_centric C code Nick Bowler <nbowler@draconx.ca> - 2018-04-25 17:15 +0000
Re: gcc_centric C code Robert Wessel <robertwessel2@yahoo.com> - 2018-04-25 12:33 -0500
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-25 20:51 +0100
Re: gcc_centric C code supercat@casperkitty.com - 2018-04-25 13:01 -0700
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-25 21:21 +0100
Re: gcc_centric C code jameskuyper@verizon.net - 2018-04-25 13:45 -0700
Re: gcc_centric C code Spiros Bousbouras <spibou@gmail.com> - 2018-04-25 17:20 +0000
Re: gcc_centric C code supercat@casperkitty.com - 2018-04-25 10:30 -0700
Re: gcc_centric C code Robert Wessel <robertwessel2@yahoo.com> - 2018-04-25 12:35 -0500
Re: gcc_centric C code Keith Thompson <kst-u@mib.org> - 2018-04-25 10:54 -0700
Re: gcc_centric C code Philipp Klaus Krause <pkk@spth.de> - 2018-04-25 20:27 +0200
Re: gcc_centric C code Keith Thompson <kst-u@mib.org> - 2018-04-25 12:38 -0700
Re: gcc_centric C code Robert Wessel <robertwessel2@yahoo.com> - 2018-04-25 19:53 -0500
Re: gcc_centric C code Keith Thompson <kst-u@mib.org> - 2018-04-25 18:13 -0700
Re: gcc_centric C code Nick Bowler <nbowler@draconx.ca> - 2018-04-26 15:16 +0000
Re: gcc_centric C code Tim Rentsch <txr@alumni.caltech.edu> - 2018-04-27 08:17 -0700
Re: gcc_centric C code Philipp Klaus Krause <pkk@spth.de> - 2018-04-26 08:03 +0200
Re: gcc_centric C code Nick Bowler <nbowler@draconx.ca> - 2018-04-26 14:30 +0000
Re: gcc_centric C code jameskuyper@verizon.net - 2018-04-26 08:26 -0700
Re: gcc_centric C code Philipp Klaus Krause <pkk@spth.de> - 2018-04-26 19:04 +0200
Re: gcc_centric C code Ian Collins <ian-news@hotmail.com> - 2018-04-27 07:48 +1200
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 21:08 +0100
Re: gcc_centric C code Ian Collins <ian-news@hotmail.com> - 2018-04-27 08:18 +1200
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 21:44 +0100
Re: gcc_centric C code Ian Collins <ian-news@hotmail.com> - 2018-04-27 09:01 +1200
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 23:16 +0100
Re: gcc_centric C code Ian Collins <ian-news@hotmail.com> - 2018-04-27 10:27 +1200
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 23:48 +0100
Re: gcc_centric C code Ian Collins <ian-news@hotmail.com> - 2018-04-27 20:41 +1200
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-27 11:51 +0100
Re: gcc_centric C code Ian Collins <ian-news@hotmail.com> - 2018-04-28 07:32 +1200
Re: gcc_centric C code Steven Petruzzellis <frelwizzen@gmail.com> - 2018-04-28 04:34 -0700
Re: gcc_centric C code Steven Petruzzellis <frelwizzen@gmail.com> - 2018-04-26 23:05 -0700
Re: gcc_centric C code jacobnavia <jacob@jacob.remcomp.fr> - 2018-04-27 00:52 +0200
Re: gcc_centric C code supercat@casperkitty.com - 2018-04-26 16:23 -0700
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-28 11:24 +0100
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-28 01:42 +0100
Re: gcc_centric C code Dan Purgert <dan@djph.net> - 2018-04-26 21:40 +0000
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 23:34 +0100
Re: gcc_centric C code "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-04-26 14:13 -0700
Re: gcc_centric C code "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-04-26 14:16 -0700
Re: gcc_centric C code Tim Rentsch <txr@alumni.caltech.edu> - 2018-04-27 08:08 -0700
Re: gcc_centric C code Keith Thompson <kst-u@mib.org> - 2018-04-27 09:11 -0700
Re: gcc_centric C code supercat@casperkitty.com - 2018-04-27 09:26 -0700
Re: gcc_centric C code Tim Rentsch <txr@alumni.caltech.edu> - 2018-04-27 09:49 -0700
Re: gcc_centric C code supercat@casperkitty.com - 2018-04-25 12:31 -0700
Re: gcc_centric C code Nick Bowler <nbowler@draconx.ca> - 2018-04-25 20:13 +0000
Re: gcc_centric C code supercat@casperkitty.com - 2018-04-25 13:50 -0700
Re: gcc_centric C code Nick Bowler <nbowler@draconx.ca> - 2018-04-25 18:02 +0000
Re: gcc_centric C code Steven Petruzzellis <frelwizzen@gmail.com> - 2018-04-25 22:39 -0700
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-25 18:36 +0100
Re: gcc_centric C code Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-04-25 23:15 +0100
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 02:02 +0100
Re: gcc_centric C code Keith Thompson <kst-u@mib.org> - 2018-04-25 18:28 -0700
Re: gcc_centric C code Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-04-26 11:45 +0100
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 14:53 +0100
Re: gcc_centric C code Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-04-26 23:38 +0100
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-27 00:31 +0100
Re: gcc_centric C code Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-04-27 00:47 +0100
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-27 02:28 +0100
Re: gcc_centric C code Thiago Adams <thiago.adams@gmail.com> - 2018-04-27 03:44 -0700
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-05-03 13:57 +0100
Re: gcc_centric C code Thiago Adams <thiago.adams@gmail.com> - 2018-05-03 11:02 -0700
Re: gcc_centric C code Thiago Adams <thiago.adams@gmail.com> - 2018-05-03 11:07 -0700
Re: gcc_centric C code Steven Petruzzellis <frelwizzen@gmail.com> - 2018-05-03 11:13 -0700
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-05-03 19:50 +0100
Re: gcc_centric C code Thiago Adams <thiago.adams@gmail.com> - 2018-05-03 13:37 -0700
Re: gcc_centric C code Thiago Adams <thiago.adams@gmail.com> - 2018-05-03 13:44 -0700
Re: gcc_centric C code Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 10:25 -0700
Re: gcc_centric C code Steven Petruzzellis <frelwizzen@gmail.com> - 2018-04-26 07:01 -0700
Re: Clearly everyone else likes to do things the hard way Noob <root@127.0.0.1> - 2018-04-26 14:51 +0200
Re: Clearly everyone else likes to do things the hard way mark.bluemel@gmail.com - 2018-04-26 07:09 -0700
Re: Clearly everyone else likes to do things the hard way gazelle@shell.xmission.com (Kenny McCormack) - 2018-04-26 17:05 +0000
Re: Clearly everyone else likes to do things the hard way bartc <bc@freeuk.com> - 2018-04-26 18:38 +0100
Re: Clearly everyone else likes to do things the hard way 1alvinalbrecht1@gmail.com - 2018-04-26 11:34 -0700
Re: Clearly everyone else likes to do things the hard way bartc <bc@freeuk.com> - 2018-04-26 21:36 +0100
Re: Clearly everyone else likes to do things the hard way C W Rose <cwr@seckford.org> - 2018-04-27 19:23 +0100
Re: Clearly everyone else likes to do things the hard way bartc <bc@freeuk.com> - 2018-04-28 14:34 +0100
Re: Clearly everyone else likes to do things the hard way Steven Petruzzellis <frelwizzen@gmail.com> - 2018-04-28 10:32 -0700
Re: Clearly everyone else likes to do things the hard way supercat@casperkitty.com - 2018-04-30 10:16 -0700
Re: Clearly everyone else likes to do things the hard way bartc <bc@freeuk.com> - 2018-04-30 19:41 +0100
Re: Clearly everyone else likes to do things the hard way supercat@casperkitty.com - 2018-04-30 12:11 -0700
Re: Clearly everyone else likes to do things the hard way scott@slp53.sl.home (Scott Lurndal) - 2018-04-30 19:14 +0000
Re: Clearly everyone else likes to do things the hard way scott@slp53.sl.home (Scott Lurndal) - 2018-04-30 19:12 +0000
Re: Clearly everyone else likes to do things the hard way bartc <bc@freeuk.com> - 2018-04-30 21:19 +0100
Re: Clearly everyone else likes to do things the hard way Steven Petruzzellis <frelwizzen@gmail.com> - 2018-04-30 19:23 -0700
Re: Clearly everyone else likes to do things the hard way Philipp Klaus Krause <pkk@spth.de> - 2018-04-26 19:45 +0200
Re: gcc_centric C code luser droog <luser.droog@gmail.com> - 2018-04-25 21:56 -0700
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 11:06 +0100
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 11:27 +0100
Re: gcc_centric C code antispam@math.uni.wroc.pl - 2018-04-26 17:00 +0000
Re: gcc_centric C code Thiago Adams <thiago.adams@gmail.com> - 2018-04-25 09:26 -0700
Re: gcc_centric C code Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-04-26 12:39 +0000
Re: gcc_centric C code gazelle@shell.xmission.com (Kenny McCormack) - 2018-04-26 13:09 +0000
Re: gcc_centric C code Wouter Verhelst <w@uter.be> - 2018-04-26 13:26 +0200
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-26 18:03 +0100
Re: gcc_centric C code Steven Petruzzellis <frelwizzen@gmail.com> - 2018-04-26 14:32 -0700
Re: gcc_centric C code Tim Rentsch <txr@alumni.caltech.edu> - 2018-04-27 09:41 -0700
Re: gcc_centric C code bartc <bc@freeuk.com> - 2018-04-27 19:37 +0100
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