Re: Merging .h and .c source files

From	glen herrmannsfeldt <gah@ugcs.caltech.edu>
Newsgroups	comp.lang.c
Subject	Re: Merging .h and .c source files
Date	2015-06-20 17:07 +0000
Organization	Aioe.org NNTP Server
Message-ID	<mm46lc$28s$1@speranza.aioe.org> (permalink)
References	(8 earlier) <mm1485$723$1@dont-email.me> <87wpyzof7i.fsf@bsb.me.uk> <83aa6187-775d-4e41-a6b2-4c30ffef7054@googlegroups.com> <ln4mm3imic.fsf@nuthaus.mib.org> <b6661a71-0d41-48ea-8916-e09cdd851dcc@googlegroups.com>

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David Kleinecke <dkleinecke@gmail.com> wrote:
> On Friday, June 19, 2015 at 11:25:22 AM UTC-7, Keith Thompson wrote:

(snip)
>> I don't believe that's true.  As far as I know, C has always permitted
>> tokens to be arranged across lines in any manner the author chooses.
>> The preprocessor adds a line-oriented layer on top of C's token-oriented
>> grammar.  There have always been conventions for how to format code for
>> readability, but I'm not aware that any C compiler has ever cared which
>> conventions, if any, you follow.

Seems like at least some parts of C have roots in PL/I, the comment
convention for one.  Unlike some other languages of the time, 
PL/I is not line oriented, and neither is its preprocessor. 

It is interesting that the C preprocessor is line oriented.

The PL/I preprocessor language is very similar to PL/I itself,
including %DO loops and %PROCEDURE calls. 
 
> Ritchie used to have his earliest surviving C compiler on his website
> and I studied it. It was obviously not the first C compiler - only the
> oldest one that survives. Ritchie himself seemed to be reluctant to 
> discuss how C came about. I have seen nothing about the pre-history of
> the pre-processor but I think we all agree that it shows definite signs
> of line-orientation. The question hinges on what long-lost software
> looked like. My guess is more like the pre-processor.

Which computer was it meant to run on?
 
> This question cannot be settled - but it is no matter except in the
> context of the pre-processor. C, as it stands today, is receptive to a
> line-oriented presentation and that is what matters.

-- glen

Thread

Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-17 16:27 -0700
  Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-18 00:35 +0100
    Re: Merging .h and .c source files Reinhardt Behm <rbehm@hushmail.com> - 2015-06-18 12:51 +0800
      Re: Merging .h and .c source files Michael Sorn <invalid@example.com> - 2015-06-18 13:27 +0000
        Re: Merging .h and .c source files David Brown <david.brown@hesbynett.no> - 2015-06-18 15:38 +0200
        Re: Merging .h and .c source files gazelle@shell.xmission.com (Kenny McCormack) - 2015-06-18 13:42 +0000
        Re: Merging .h and .c source files Reinhardt Behm <rbehm@hushmail.com> - 2015-06-18 22:47 +0800
    Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-18 06:21 -0700
    Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-18 16:07 +0200
      Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-18 15:29 +0100
        Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-18 16:48 +0200
          Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-06-18 21:52 +0000
            Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 03:57 +0200
              Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-06-19 10:02 +0000
                Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-19 11:24 +0100
                Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 12:10 +0100
                Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 13:24 +0100
                Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 14:09 +0100
                Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 15:30 +0200
                Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 17:34 +0100
                Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 17:06 +0100
                Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-19 09:40 -0700
                Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 18:12 +0100
                Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-19 11:25 -0700
                Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-20 07:31 -0700
                Re: Merging .h and .c source files glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-06-20 17:07 +0000
                Re: Merging .h and .c source files "Charles Richmond" <numerist@aquaporin4.com> - 2015-06-23 17:44 -0500
                Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-24 01:48 +0100
                Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-20 12:37 -0700
                Re: Merging .h and .c source files Robert Wessel <robertwessel2@yahoo.com> - 2015-06-19 22:04 -0500
                Re: Merging .h and .c source files Les Cargill <lcargill99@comcast.com> - 2015-06-19 22:36 -0500
                Re: Merging .h and .c source files Robert Wessel <robertwessel2@yahoo.com> - 2015-06-20 01:23 -0500
                Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 17:54 +0100
                Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 19:45 +0100
                Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-21 07:19 -0700
                Re: Merging .h and .c source files Ian Collins <ian-news@hotmail.com> - 2015-06-20 08:52 +1200
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-10 18:44 -0700
        Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-18 08:26 -0700
          Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-18 16:41 +0100
            Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-18 17:13 +0100
              Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-18 09:26 -0700
                Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-18 18:03 +0100
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-10 18:33 -0700
                Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-18 10:28 -0700
                Re: Merging .h and .c source files gazelle@shell.xmission.com (Kenny McCormack) - 2015-06-18 17:28 +0000
                Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-18 21:07 +0100
                Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-18 15:04 -0700
                Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 00:38 +0100
                Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 01:00 +0100
                Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-19 00:10 -0700
                Re: Merging .h and .c source files mark.bluemel@gmail.com - 2015-06-19 00:56 -0700
                Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-19 09:18 +0100
                Re: Merging .h and .c source files John Bode <jfbode1029@gmail.com> - 2015-06-24 08:43 -0700
                Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-24 11:15 -0700
                Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-24 19:23 +0100
                Re: Merging .h and .c source files James Kuyper <jameskuyper@verizon.net> - 2015-06-24 14:40 -0400
                Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-24 19:45 +0100
              Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-18 10:19 -0700
                Re: Merging .h and .c source files gwowen <gwowen@gmail.com> - 2015-06-19 05:29 -0700
                Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-19 08:26 -0700
            Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 04:08 +0200
            Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-10 17:53 -0700
              Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-10 18:40 -0700
                Re: Merging .h and .c source files Udyant Wig <udyantw@gmail.com> - 2015-07-11 10:19 +0530
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-11 15:59 -0700
                Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-07-13 18:50 +0000
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 08:37 -0700
                Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-07-19 21:30 +0000
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-20 09:46 -0700
                Re: Merging .h and .c source files Richard Damon <Richard@Damon-Family.org> - 2015-07-11 20:08 -0400
                Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-11 18:26 -0700
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 08:38 -0700
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-11 15:57 -0700
                Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-11 16:30 -0700
                Re: Merging .h and .c source files Ian Collins <ian-news@hotmail.com> - 2015-07-12 15:51 +1200
                Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-12 06:03 -0700
                Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-07-12 21:36 +0100
                Re: Merging .h and .c source files gazelle@shell.xmission.com (Kenny McCormack) - 2015-07-12 21:27 +0000
                Re: Merging .h and .c source files Ian Collins <ian-news@hotmail.com> - 2015-07-13 10:00 +1200
                Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-13 04:16 -0700
                Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-07-13 12:47 +0100
                Re: Merging .h and .c source files Ian Collins <ian-news@hotmail.com> - 2015-07-14 08:32 +1200
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 11:33 -0700
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 11:24 -0700
                Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-15 12:29 -0700
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-20 09:50 -0700
                Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-07-13 18:52 +0000
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 08:52 -0700
                Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-07-15 20:33 -0700
                Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-20 09:53 -0700
        Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-10 17:47 -0700
    Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-18 11:18 -0700
      Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-18 11:34 -0700
        Re: Merging .h and .c source files Morris Dovey <mrdovey@iedu.com> - 2015-06-18 15:59 -0500
      Re: Merging .h and .c source files Philipp Klaus Krause <pkk@spth.de> - 2015-06-19 12:46 +0200
    Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-18 19:23 +0100
  Re: Merging .h and .c source files Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2015-06-18 07:48 -0600
  Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-18 18:27 +0100

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