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Groups > comp.lang.c > #96419

Re: Compiler design in C?

From "Chris M. Thomasson" <invalid@invalid.invalid>
Newsgroups comp.lang.c
Subject Re: Compiler design in C?
Date 2016-11-12 11:12 -0800
Organization n/a
Message-ID <o07pid$hur$1@dont-email.me> (permalink)
References (13 earlier) <edb11f1f-e35c-ee39-a398-85b586d5ca6a@verizon.net> <o00ccg$rq8$1@dont-email.me> <o00cpc$si0$1@dont-email.me> <o05jo6$a7n$1@dont-email.me> <lnoa1lmuad.fsf@kst-u.example.com>

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On 11/11/2016 4:11 PM, Keith Thompson wrote:
> "Chris M. Thomasson" <invalid@invalid.invalid> writes:
>> On 11/9/2016 3:51 PM, jacobnavia wrote:
>>> Le 10/11/2016 á 00:44, Chris M. Thomasson a écrit :
>> [...]
>>> A bug doesn't emit diagnostics, well, at least not normally...
>> [...]
>>
>> I figured out why I cannot run the encrypt/decrypt cycle. The call to
>> scanf in the following code returns -1, when it should not. This all
>> works in GCC and MSVC, but returns -1 in yours using the exact same
>> command line arguments in the same environment:
>> _______________________________________________
>> int
>> ffe_secret_key_parse_from_file(
>>      struct ffe_secret_key* const self,
>>      FILE* in_file
>> ) {
>>      printf("ffe_secret_key_parse_from_file.0\n");
>>
>>      int ret = fscanf(
>>          in_file,
>>          "iters:%u\r\n"
>>          "scale:(%lf, %lf)\r\n"
>>          "julia0:(%lf, %lf)\r\n"
>>          "julia1:(%lf, %lf)\r\n"
>>          "julia2:(%lf, %lf)\r\n"
>>          "axes:(%lf, %lf, %lf, %lf)",
>>          &self->iters,
>>          &self->scale.x, &self->scale.y,
>>          &self->julia[0].x, &self->julia[0].y,
>>          &self->julia[1].x, &self->julia[1].y,
>>          &self->julia[2].x, &self->julia[2].y,
>>          &self->axes.xmin, &self->axes.xmax,
>>          &self->axes.ymin, &self->axes.ymax
>>      );
> [snip]
>
> The use of "\r\n" suggests a misunderstanding about how the *scanf()
> functions work.

The only reason why I used "\r\n" in fscanf to parse the secret key file 
is to mirror the fprintf that creates them here:
_____________________________________________
int
ffe_secret_key_store_to_file(
     struct ffe_secret_key const* const self,
     FILE* out_file
){
     int ret = fprintf(
         out_file,
         "iters:%u\r\n"
         "scale:(" FFE_PREC ", " FFE_PREC ")\r\n"
         "julia0:(" FFE_PREC ", " FFE_PREC ")\r\n"
         "julia1:(" FFE_PREC ", " FFE_PREC ")\r\n"
         "julia2:(" FFE_PREC ", " FFE_PREC ")\r\n"
         "axes:(" FFE_PREC ", " FFE_PREC ", "
                  FFE_PREC ", " FFE_PREC ")",
         self->iters,
         self->scale.x, self->scale.y,
         self->julia[0].x, self->julia[0].y,
         self->julia[1].x, self->julia[1].y,
         self->julia[2].x, self->julia[2].y,
         self->axes.xmin, self->axes.xmax,
         self->axes.ymin, self->axes.ymax
     );

     if (ret > 0)
     {
         return 0;
     }

     return FFE_ERROR;
}
_____________________________________________

The macro FFE_PREC is defined as:

#define FFE_PREC "%.13lf"

The entire code can be found here:

http://pastebin.com/D7N4vBWa



>
> N1570 7.21.6.2p5:
>
>     A directive composed of white-space character(s) is executed
>     by reading input up to the first non-white-space character
>     (which remains unread), or until no more characters can be
>     read. The directive never fails.
>
> Both '\r' and '\n' are white-space characters.  So a '\r' tells fscanf
> to skip any leading white-space, and a following '\n' tells it to do
> exactly the same thing (which, given that it's already been skipped,
> does nothing).
>
> I think you're assuming that input lines will be terminated by "\r\n".
> In fact they generally aren't on Unix-like systems, and even on Windows
> systems where they are, the "\r\n" end-of-line marker is translated to
> "\n" on input for text streams.  It's only because "\r\n" doesn't work
> the way you think it does that this isn't causing problems.
>
> And you're not enforcing line endings.  You could have
>     iters:42 scale:(1.2, 3.4)
> on one line, and the "\r\n" would just consume the blank.
>
> If you really want to force specific white-space characters, such as
> '\n', you can use "%[\n]".
>
> I don't think that's the cause of the problem you're asking about.  (I
> can imagine a bug where scanf doesn't treat '\r' as white-space, but I
> don't think that's plausible.)
>
> fscanf returns EOF (typically -1) only if "an input failure occurs
> before the first conversion (if any) has completed".

Right. My code checks the number of conversions made and only reports 
success if it is equal to FFE_SECRET_KEY_ARGS, defined as:

#define FFE_SECRET_KEY_ARGS 13

FWIW, here is the entire function that parses secret key files, and uses 
fscanf:
_____________________________________________
int
ffe_secret_key_parse_from_file(
     struct ffe_secret_key* const self,
     FILE* in_file
){
     int ret = fscanf(
         in_file,
         "iters:%u\r\n"
         "scale:(%lf, %lf)\r\n"
         "julia0:(%lf, %lf)\r\n"
         "julia1:(%lf, %lf)\r\n"
         "julia2:(%lf, %lf)\r\n"
         "axes:(%lf, %lf, %lf, %lf)",
         &self->iters,
         &self->scale.x, &self->scale.y,
         &self->julia[0].x, &self->julia[0].y,
         &self->julia[1].x, &self->julia[1].y,
         &self->julia[2].x, &self->julia[2].y,
         &self->axes.xmin, &self->axes.xmax,
         &self->axes.ymin, &self->axes.ymax
     );

     if (ret == FFE_SECRET_KEY_ARGS)
     {
         return 0;
     }

     return FFE_ERROR;
}
_____________________________________________

This should tell me that FFE_SECRET_KEY_ARGS conversions were made, if 
not, and error is returned instead of success.


> Are you sure that in_file has been opened correctly?

Yes. The code would have never got to the point where it wanted to parse 
it if the in_file was not opened. That code can be found in the 
ffe_cmdline_app_create function here:
_____________________________________________
int
ffe_cmdline_app_create(
     struct ffe_cmdline_app* const self,
     struct ffe_cmdline_args const* cmdargs
) {
     printf(
         "Funny Fractal Encryption ver:(0.0.0) pre-alpha\r\n"
         "by: Chris M. Thomasson\r\n"
         "==================================================\r\n\r\n");

     self->cmdargs = *cmdargs;
     self->in_file = self->out_file = NULL;

     srand((unsigned int)time(NULL));

     if (self->cmdargs.argc < 2)
     {
         return FFE_ERROR;
     }

     self->flags = 0;
     if (ffe_cnv_uint_from_buffer(self->cmdargs.argv[1], &self->flags))
     {
         return FFE_ERROR;
     }

     if (self->flags == 0)
     {
         return 0;
     }

     else if (self->cmdargs.argc == FFE_CMDLINE_ARGS + 1)
     {
         // Read the secret key
         const char* skey_fname = self->cmdargs.argv[2];
         FILE* skey_file = fopen(skey_fname, "rb");

         if (skey_file)
         {
             if (!ffe_secret_key_parse_from_file(&self->skey, skey_file))
             {
[...]
_____________________________________________


It checks skey_file for NULL, and then passes it over to the 
ffe_secret_key_parse_from_file function as the in_file parameter. But, 
lcc returns -1 in the fscanf function, and my program sees that and does 
not work by reporting an error.

I am kind of at a loss about what to do about it.

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                Re: Compiler design in C? Melzzzzz <Melzzzzz@zzzzz.com> - 2016-11-10 11:10 +0000
                Re: Compiler design in C? Thiago Adams <thiago.adams@gmail.com> - 2016-11-10 03:17 -0800
                Re: Compiler design in C? James Kuyper <jameskuyper@verizon.net> - 2016-11-10 06:56 -0500
                Re: Compiler design in C? Thiago Adams <thiago.adams@gmail.com> - 2016-11-10 04:05 -0800
                Re: Compiler design in C? James Kuyper <jameskuyper@verizon.net> - 2016-11-10 08:09 -0500
                Re: Compiler design in C? jameskuyper@verizon.net - 2016-11-11 16:56 -0800
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-10 07:37 +0000
                Re: Compiler design in C? Melzzzzz <Melzzzzz@zzzzz.com> - 2016-11-10 08:07 +0000
                Re: Compiler design in C? Ian Collins <ian-news@hotmail.com> - 2016-11-10 22:43 +1300
                Re: Compiler design in C? Melzzzzz <Melzzzzz@zzzzz.com> - 2016-11-10 09:50 +0000
                Re: Compiler design in C? BartC <bc@freeuk.com> - 2016-11-10 11:43 +0000
                Re: Compiler design in C? gwowen <gwowen@gmail.com> - 2016-11-10 06:36 -0800
                Re: Compiler design in C? BartC <bc@freeuk.com> - 2016-11-10 15:05 +0000
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-10 16:25 +0100
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-10 13:14 +0100
                Re: Compiler design in C? Thiago Adams <thiago.adams@gmail.com> - 2016-11-10 04:23 -0800
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-09 23:01 +0100
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-10 13:35 +0100
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-10 08:08 -0800
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-10 20:30 +0100
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-10 12:20 -0800
                Re: Compiler design in C? me <crisdunbar@gmail.com> - 2016-11-10 13:48 -0800
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-10 22:53 +0100
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-10 14:38 -0800
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-11 09:52 +0100
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-11 06:09 -0800
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-11 21:54 +0100
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-11 14:10 -0800
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-12 14:17 +0100
                Re: Compiler design in C? supercat <flatfinger@casperkitty.com> - 2016-11-12 10:42 -0800
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-12 19:04 +0000
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-12 16:13 -0800
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-13 00:28 +0000
                Re: Compiler design in C? supercat <flatfinger@casperkitty.com> - 2016-11-12 17:36 -0800
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-13 10:20 +0000
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-13 14:37 -0800
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-13 22:42 +0000
                Re: Compiler design in C? "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-13 18:26 -0500
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-14 07:08 +0000
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-13 15:52 -0800
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-14 07:10 +0000
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-14 07:33 -0800
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-14 18:42 +0000
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-14 11:42 -0800
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-14 19:49 +0000
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-14 12:24 -0800
                Re: Compiler design in C? Keith Thompson <kst-u@mib.org> - 2016-11-14 12:32 -0800
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-16 08:18 -0800
                Re: Compiler design in C? Keith Thompson <kst-u@mib.org> - 2016-11-16 08:50 -0800
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-17 12:02 -0800
                Re: Compiler design in C? Keith Thompson <kst-u@mib.org> - 2016-11-17 12:22 -0800
                Re: Compiler design in C? Tim Rentsch <txr@alumni.caltech.edu> - 2016-11-16 10:35 -0800
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-13 10:52 +0000
                Re: Compiler design in C? Keith Thompson <kst-u@mib.org> - 2016-11-12 14:28 -0800
                Re: Compiler design in C? jameskuyper@verizon.net - 2016-11-09 13:27 -0800
                Re: Compiler design in C? Robert Spanjaard <spamtrap@arumes.com> - 2016-11-09 23:43 +0100
                Re: Compiler design in C? Ian Collins <ian-news@hotmail.com> - 2016-11-10 17:57 +1300
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-09 21:26 +0100
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-10 06:39 +0000
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-09 22:54 +0100
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-09 15:08 -0800
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-10 06:50 +0000
          Re: Compiler design in C? John Bode <jfbode1029@gmail.com> - 2016-11-08 13:44 -0800
            Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-08 23:07 +0100
              Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-08 14:15 -0800
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-08 23:26 +0100
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-08 14:44 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-08 14:48 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-08 15:34 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-08 15:57 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-08 16:17 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-08 16:18 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-08 16:24 -0800
                Re: Compiler design in C? "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-08 19:59 -0500
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-09 15:44 -0800
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-10 00:51 +0100
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-09 15:59 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-10 16:08 -0800
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-11 14:41 +0000
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-11 15:55 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-11 15:21 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-11 15:32 -0800
                Re: Compiler design in C? Keith Thompson <kst-u@mib.org> - 2016-11-11 16:11 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-12 11:12 -0800
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-12 20:03 +0000
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-12 20:21 +0000
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-14 15:30 -0800
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-12 21:51 +0100
                Re: Compiler design in C? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-12 13:16 -0800
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-12 23:04 +0100
                Re: Compiler design in C? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-12 14:12 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-14 15:05 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-14 14:43 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-14 14:49 -0800
                Re: Compiler design in C? Keith Thompson <kst-u@mib.org> - 2016-11-12 14:33 -0800
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-12 22:45 +0000
                Re: Compiler design in C? "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-12 18:14 -0500
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-13 00:12 +0000
                Re: Compiler design in C? "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-13 11:38 -0500
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-14 00:44 +0000
                Re: Compiler design in C? "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-14 11:45 -0500
                Re: Compiler design in C? Keith Thompson <kst-u@mib.org> - 2016-11-14 09:42 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-14 14:14 -0800
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-14 22:59 +0000
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-14 15:15 -0800
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-14 19:11 +0000
                Re: Compiler design in C? "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-14 15:40 -0500
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-14 20:45 +0000
                Re: Compiler design in C? Keith Thompson <kst-u@mib.org> - 2016-11-12 17:20 -0800
                Re: Compiler design in C? "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-09 19:49 -0500
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-10 16:14 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-11 15:28 -0800
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-12 00:45 +0000
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-12 11:40 -0800
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-12 11:42 -0800
                Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-12 20:18 +0000
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-14 15:23 -0800
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-13 11:46 +0100
                Re: Compiler design in C? "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-10 16:22 -0800
                Re: Compiler design in C? jameskuyper@verizon.net - 2016-11-11 16:52 -0800
                Re: Compiler design in C? John Bode <jfbode1029@gmail.com> - 2016-11-08 14:57 -0800
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-09 00:13 +0100
                Re: Compiler design in C? Keith Thompson <kst-u@mib.org> - 2016-11-08 15:46 -0800
                Re: Compiler design in C? Jerry Stuckle <jstucklex@attglobal.net> - 2016-11-08 20:04 -0500
                Re: Compiler design in C? Thiago Adams <thiago.adams@gmail.com> - 2016-11-09 03:23 -0800
                Re: Compiler design in C? Jerry Stuckle <jstucklex@attglobal.net> - 2016-11-09 08:01 -0500
                Re: Compiler design in C? John Bode <jfbode1029@gmail.com> - 2016-11-09 12:27 -0800
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-09 22:32 +0100
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-10 06:43 +0000
                Re: Compiler design in C? Ian Collins <ian-news@hotmail.com> - 2016-11-10 20:30 +1300
                Re: Compiler design in C? Gareth Owen <gwowen@gmail.com> - 2016-11-10 07:35 +0000
                Re: Compiler design in C? Thiago Adams <thiago.adams@gmail.com> - 2016-11-10 03:12 -0800
                Re: Compiler design in C? Melzzzzz <Melzzzzz@zzzzz.com> - 2016-11-10 11:19 +0000
                Re: Compiler design in C? Thiago Adams <thiago.adams@gmail.com> - 2016-11-10 03:46 -0800
                Re: Compiler design in C? Thiago Adams <thiago.adams@gmail.com> - 2016-11-10 04:01 -0800
                Re: Compiler design in C? Melzzzzz <Melzzzzz@zzzzz.com> - 2016-11-11 16:04 +0000
                Re: Compiler design in C? Thiago Adams <thiago.adams@gmail.com> - 2016-11-11 08:36 -0800
                Re: Compiler design in C? Jerry Stuckle <jstucklex@attglobal.net> - 2016-11-09 17:41 -0500
                Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-10 13:58 +0100
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-09 08:10 -0800
                Re: Compiler design in C? supercat@casperkitty.com - 2016-11-09 10:35 -0800
              Re: Compiler design in C? supercat@casperkitty.com - 2016-11-08 14:21 -0800
                Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-08 23:28 +0100
          Re: Compiler design in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-08 22:47 +0000
        Re: Compiler design in C? Richard Heathfield <rjh@cpax.org.uk> - 2016-11-10 09:52 +0000
          Re: Compiler design in C? James Kuyper <jameskuyper@verizon.net> - 2016-11-10 07:33 -0500
          Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-10 14:03 +0100
            Re: Compiler design in C? James Kuyper <jameskuyper@verizon.net> - 2016-11-10 08:15 -0500
              Re: Compiler design in C? David Brown <david.brown@hesbynett.no> - 2016-11-10 14:47 +0100
  Re: Compiler design in C? jacobnavia <jacob@jacob.remcomp.fr> - 2016-11-08 22:55 +0100
    Re: Compiler design in C? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-09 19:44 +0800
  Re: Compiler design in C? luser droog <luser.droog@gmail.com> - 2016-11-08 18:18 -0800
    Re: Compiler design in C? luser droog <luser.droog@gmail.com> - 2016-11-08 18:25 -0800

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