Re: C++ features for C

From	David Brown <david.brown@hesbynett.no>
Newsgroups	comp.lang.c
Subject	Re: C++ features for C
Date	2018-05-14 13:15 +0200
Organization	A noiseless patient Spider
Message-ID	<pdbr57$qqc$1@dont-email.me> (permalink)
References	(13 earlier) <VHYJC.83441$jb7.60431@fx34.am4> <pda209$go$1@dont-email.me> <en0KC.126946$oo.96240@fx35.am4> <pdbf1k$de1$1@dont-email.me> <2XdKC.101874$ny5.26355@fx17.am4>

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On 14/05/18 12:56, bartc wrote:
> On 14/05/2018 08:49, David Brown wrote:
>> On 13/05/18 21:30, bartc wrote:
> 
>>> And there is NO way to modify that 100 (short of disassembling the code
>>> looking for immediate values of 100s, but you won't know which is which;
>>> and then the code won't usually have write access).
>>
>> When you write "const int a = 100;" in C, there is NO way to modify that
>> 100, short of intentionally writing undefined behaviour by clearly
>> dangerous code, and /hoping/ it will have the modification effect.  It
>> is not really that different.
> 
> It's very easy, you write:
> 
>  *(int*)&a = 999;
> 

Casting pointers /is/ dangerous coding - you do it when you have to for
special purposes, but it should be a rare thing.

It is an unfortunate case that old C did not have const, people have
been lazy about const, and you might need duplications for functions
that sometimes take const data and sometimes non-const data (strchr
being a classic example).  This means getting "const" right in every
case is not practical, and you do sometimes legitimately need to make
such casts from pointer-to-const to pointer-to-non-const.  Thus it can't
be an error, or even a warning by default (gcc needs "-Wcast-qual"
explicitly - it is not even in -Wextra, which I think is questionable).

I would be happier to see compilers being smarter at spotting undefined
behaviour, such as this, and warning on it or giving errors in cases
like this.

> which all C compilers will accept. But it will only work on
> implementations that don't store that 100 in read-only memory
> 

Testing will quickly reveal the problem.  I'd prefer it to be spotted by
tools earlier.

Disabling taking the address of const objects would be too much.  Just
be careful when writing dangerous code constructs like pointer casts.
Prefer to write code without a cast:

	int * p = &a;
	*p = 999;

Then you will get an error or warning in many more cases.

> Also, if it is modified, whether that will affect any of the instances
> of 'a' in a program depends on whether the compiler used an immediate
> 100 or loaded its value from memory. When explicitly using &a to pass
> its value, then likely the 100 will then be seen as 999.

Sometimes you will get the original value, sometimes the changed value, yes.

> 
> So you see, it depends on various different things.

It is undefined behaviour - of course it depends on different things.

> 
> If you see this in C source, without knowing the compiler or machine to
> be used, then you cannot say with 100% certainty that the 100 will not
> be changed.

If you know that "a" is declared const, then you know with 100%
certainty that the code is bad.  If you don't know how "a" is declared,
you don't know anything anyway.

> 
> On the other hand, you can be 100% certain that it can't happen in
> either my language, or C using the 'constant' feature. Because writing
> &a is a hard error.
> 

I'd rather the compiler gave a hard error (or at least a warning) when
it saw the undefined behaviour.  That does not need to limit the
functionality of const.

But I fully agree with you that an error here of some sort would be a
good idea.

Thread

C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 10:13 -0700
  Re: C++ features for C supercat@casperkitty.com - 2018-05-11 10:47 -0700
    Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 11:06 -0700
      Re: C++ features for C Philipp Klaus Krause <pkk@spth.de> - 2018-05-11 21:52 +0200
        Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 16:51 -0700
      Re: C++ features for C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-05-11 21:35 +0100
      Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-11 23:39 -0700
    Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-11 19:20 +0100
      Re: C++ features for C supercat@casperkitty.com - 2018-05-11 12:21 -0700
    Re: C++ features for C Richard Damon <Richard@Damon-Family.org> - 2018-05-12 11:09 -0400
      Re: C++ features for C Tim Rentsch <txr@alumni.caltech.edu> - 2018-05-18 20:48 -0700
        Re: C++ features for C supercat@casperkitty.com - 2018-05-19 12:59 -0700
          Re: C++ features for C Ike Naar <ike@iceland.freeshell.org> - 2018-05-22 06:50 +0000
            Re: C++ features for C supercat@casperkitty.com - 2018-05-22 07:39 -0700
              Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-22 09:54 -0700
        Re: C++ features for C Richard Damon <Richard@Damon-Family.org> - 2018-05-19 16:18 -0400
          Re: C++ features for C supercat@casperkitty.com - 2018-05-19 13:54 -0700
            Re: C++ features for C Richard Damon <Richard@Damon-Family.org> - 2018-05-19 18:05 -0400
          Re: C++ features for C Tim Rentsch <txr@alumni.caltech.edu> - 2018-06-14 04:27 -0700
            Re: C++ features for C supercat@casperkitty.com - 2018-06-14 07:35 -0700
            Re: C++ features for C Richard Damon <Richard@Damon-Family.org> - 2018-06-15 10:25 -0400
              Re: C++ features for C Tim Rentsch <txr@alumni.caltech.edu> - 2018-06-17 12:59 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-06-17 23:44 -0700
    Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-12 12:48 -0700
      Re: C++ features for C supercat@casperkitty.com - 2018-05-12 13:07 -0700
        Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-12 13:59 -0700
  Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-11 18:50 +0100
    Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 11:22 -0700
    Re: C++ features for C Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-05-18 02:45 -0700
  Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 11:28 -0700
  Re: C++ features for C Philipp Klaus Krause <pkk@spth.de> - 2018-05-11 21:49 +0200
    Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 16:44 -0700
    Terse static_assert (was Re: C++ features for C) Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-05-12 05:51 +0000
      Re: Terse static_assert (was Re: C++ features for C) Tim Rentsch <txr@alumni.caltech.edu> - 2018-05-18 22:20 -0700
        Re: Terse static_assert (was Re: C++ features for C) Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-05-22 05:24 +0000
          Re: Terse static_assert (was Re: C++ features for C) Steve Carroll <frelwizzen@gmail.com> - 2018-05-22 00:47 -0700
          Re: Terse static_assert (was Re: C++ features for C) Tim Rentsch <txr@alumni.caltech.edu> - 2018-06-14 03:22 -0700
  Re: C++ features for C Ian Collins <ian-news@hotmail.com> - 2018-05-12 07:59 +1200
    Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 13:28 -0700
      Re: C++ features for C Ian Collins <ian-news@hotmail.com> - 2018-05-12 10:13 +1200
      Re: C++ features for C supercat@casperkitty.com - 2018-05-11 15:36 -0700
      Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-11 15:38 -0700
        Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 16:41 -0700
          Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-12 11:53 +0100
            Re: C++ features for C Philipp Klaus Krause <pkk@spth.de> - 2018-05-12 13:30 +0200
              Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-12 13:48 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-12 12:17 -0700
                Re: C++ features for C Philipp Klaus Krause <pkk@spth.de> - 2018-05-13 09:44 +0200
            Re: C++ features for C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-05-12 14:46 +0100
              Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-12 17:23 +0100
                Re: C++ features for C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-05-12 19:46 +0100
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-12 21:05 +0100
                Re: C++ features for C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-05-13 02:16 +0100
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 12:06 +0100
                Re: C++ features for C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-05-13 14:20 +0100
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 16:19 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-13 21:00 +0200
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 20:30 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 09:49 +0200
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-14 11:56 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 13:15 +0200
                Re: C++ features for C supercat@casperkitty.com - 2018-05-14 09:28 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-14 17:44 +0100
                Re: C++ features for C supercat@casperkitty.com - 2018-05-14 10:13 -0700
                Re: C++ features for C scott@slp53.sl.home (Scott Lurndal) - 2018-05-14 17:46 +0000
                Re: C++ features for C scott@slp53.sl.home (Scott Lurndal) - 2018-05-14 17:13 +0000
                Re: C++ features for C supercat@casperkitty.com - 2018-05-14 11:23 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-14 14:06 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-13 12:40 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 09:11 +0200
            Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-12 18:03 +0200
              Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-12 17:45 +0100
                Re: C++ features for C Ike Naar <ike@iceland.freeshell.org> - 2018-05-12 18:00 +0000
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-12 20:31 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-13 16:57 +0200
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 17:14 +0100
                Re: C++ features for C supercat@casperkitty.com - 2018-05-13 11:38 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 19:52 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-13 21:18 +0200
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-13 12:35 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 21:22 +0100
                Re: C++ features for C mark.bluemel@gmail.com - 2018-05-14 00:49 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-14 01:05 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 10:14 +0200
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-14 11:43 +0100
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-14 12:05 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-14 09:19 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-14 17:29 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 13:24 +0200
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-14 14:07 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 16:19 +0200
                Re: C++ features for C mark.bluemel@gmail.com - 2018-05-14 07:49 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-14 08:07 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-13 13:20 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 10:47 +0200
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-14 10:35 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-15 09:10 +0200
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 08:53 -0700
            Re: C++ features for C Ian Collins <ian-news@hotmail.com> - 2018-05-13 08:19 +1200
              Re: C++ features for C scott@slp53.sl.home (Scott Lurndal) - 2018-05-13 17:44 +0000
            Re: C++ features for C supercat@casperkitty.com - 2018-05-12 13:33 -0700
            Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 22:56 +0100
              Re: C++ features for C supercat@casperkitty.com - 2018-05-13 15:18 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 23:41 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 12:05 +0200
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-14 04:30 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-14 08:31 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-14 08:39 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-14 17:21 +0100
                Re: C++ features for C supercat@casperkitty.com - 2018-05-14 09:33 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-14 17:55 +0100
                Re: C++ features for C supercat@casperkitty.com - 2018-05-14 11:26 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-14 20:24 +0100
                Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-14 13:07 -0700
              Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-13 15:28 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 23:43 +0100
                Re: C++ features for C mark.bluemel@gmail.com - 2018-05-14 00:50 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 12:37 +0200
          Re: C++ features for C Ian Collins <ian-news@hotmail.com> - 2018-05-13 08:32 +1200
            Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-12 22:48 +0100
              Re: C++ features for C Ian Collins <ian-news@hotmail.com> - 2018-05-13 10:08 +1200
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 00:00 +0100
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 00:35 +0100
                Re: C++ features for C Ian Collins <ian-news@hotmail.com> - 2018-05-13 12:24 +1200
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 01:37 +0100
                Re: C++ features for C Ian Collins <ian-news@hotmail.com> - 2018-05-13 13:30 +1200
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-13 17:57 +0200
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 17:31 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-13 21:34 +0200
                Re: C++ features for C supercat@casperkitty.com - 2018-05-13 11:11 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 19:41 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-13 21:42 +0200
                Re: C++ features for C supercat@casperkitty.com - 2018-05-13 13:09 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 12:41 +0200
                Re: C++ features for C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-05-14 14:25 +0100
              Re: C++ features for C supercat@casperkitty.com - 2018-05-12 15:36 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-13 12:05 -0700
              Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-12 15:53 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 00:14 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-12 18:05 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-13 21:59 +0200
                Re: C++ features for C supercat@casperkitty.com - 2018-05-13 13:23 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-13 22:05 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 12:55 +0200
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-14 12:57 +0200
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-14 10:57 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-15 09:14 +0200
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-13 14:10 -0700
              Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-13 17:31 +0200
            Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-14 10:19 -0700
              Re: C++ features for C Ian Collins <ian-news@hotmail.com> - 2018-05-15 08:06 +1200
                Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-14 13:20 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-14 13:46 -0700
                Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-14 14:12 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-14 14:27 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-14 15:21 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-14 15:24 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-15 09:26 +0200
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-15 11:28 +0100
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-15 13:18 +0200
                Re: C++ features for C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-05-15 12:23 +0100
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-15 13:27 +0100
                Re: C++ features for C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-05-15 16:19 +0100
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-15 08:29 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-15 17:18 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 10:23 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-15 19:23 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 11:59 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-15 20:20 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 12:56 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-15 21:01 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 13:15 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-15 22:36 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 14:59 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-15 23:54 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 16:18 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-16 00:40 +0100
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 17:25 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-16 01:32 +0100
                Re: C++ features for C scott@slp53.sl.home (Scott Lurndal) - 2018-05-16 14:32 +0000
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-16 07:41 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-15 21:13 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-16 07:51 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-16 18:09 +0100
                Re: C++ features for C supercat@casperkitty.com - 2018-05-16 13:22 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-16 09:15 +0200
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-16 00:39 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-16 08:31 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-17 15:00 +0200
                Re: C++ features for C supercat@casperkitty.com - 2018-05-17 08:07 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-18 05:04 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-17 09:07 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-17 10:33 -0700
                Re: C++ features for C scott@slp53.sl.home (Scott Lurndal) - 2018-05-17 18:04 +0000
                Re: C++ features for C supercat@casperkitty.com - 2018-05-17 13:15 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-17 14:07 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-17 15:40 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-17 16:28 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-18 09:17 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-18 10:36 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-18 11:41 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-19 14:16 -0700
                Re: C++ features for C Richard Damon <Richard@Damon-Family.org> - 2018-05-18 19:54 -0400
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-17 20:39 +0200
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-17 12:37 -0700
                Re: C++ features for C Ike Naar <ike@iceland.freeshell.org> - 2018-05-17 19:54 +0000
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-17 13:39 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-17 22:48 +0200
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-17 22:47 +0200
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-17 14:13 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-18 10:10 +0200
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-18 17:55 +0200
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-18 08:59 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-18 10:17 -0700
                Re: C++ features for C "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-05-15 15:56 -0700
                Re: C++ features for C "Chris M. Thomasson" <invalid_chris_thomasson@invalid.invalid> - 2018-05-15 15:59 -0700
                Re: C++ features for C supercat@casperkitty.com - 2018-05-15 15:15 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 15:58 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-15 16:48 -0700
                Re: C++ features for C gazelle@shell.xmission.com (Kenny McCormack) - 2018-05-15 20:37 +0000
                Re: C++ features for C supercat@casperkitty.com - 2018-05-15 13:46 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-15 14:43 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 09:17 -0700
                Re: C++ features for C bartc <bc@freeuk.com> - 2018-05-15 18:20 +0100
                Re: C++ features for C scott@slp53.sl.home (Scott Lurndal) - 2018-05-15 17:38 +0000
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 11:13 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-15 06:40 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 09:12 -0700
                Re: C++ features for C Steve Carroll <frelwizzen@gmail.com> - 2018-05-15 03:33 -0700
                Re: C++ features for C Keith Thompson <kst-u@mib.org> - 2018-05-15 09:09 -0700
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-15 23:45 +0200
                Re: C++ features for C Ike Naar <ike@iceland.freeshell.org> - 2018-05-17 18:49 +0000
                Re: C++ features for C David Brown <david.brown@hesbynett.no> - 2018-05-17 22:49 +0200
  Re: C++ features for C Chad <cdalten@gmail.com> - 2018-05-11 15:46 -0700
    Re: C++ features for C supercat@casperkitty.com - 2018-05-11 16:13 -0700
  Re: C++ features for C Andrey Tarasevich <andreytarasevich@hotmail.com> - 2018-05-11 16:52 -0700
    Re: C++ features for C Thiago Adams <thiago.adams@gmail.com> - 2018-05-11 16:56 -0700

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