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From: Michael S <already5chosen@yahoo.com>
Newsgroups: comp.lang.c
Subject: Re: do { quit; } else { }
Date: Thu, 10 Apr 2025 11:55:01 +0300
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On Wed, 09 Apr 2025 14:44:39 -0700
Keith Thompson <Keith.S.Thompson+u@gmail.com> wrote:

> Michael S <already5chosen@yahoo.com> writes:
> > On Wed, 9 Apr 2025 12:58:08 +0200
> > Janis Papanagnou <janis_papanagnou+ng@hotmail.com> wrote:
> >  
> >> On 09.04.2025 11:42, David Brown wrote:  
> >> > On 08/04/2025 18:28, bart wrote:    
> >> >> [...]    
> >> > 
> >> > I believe the meaning of "extern" in combination with other
> >> > storage-class specifiers was picked to work with existing old
> >> > code from before "extern" was added to the language.    
> >> 
> >> Assuming you mean the "C" language I don't quite understand the
> >> last part of the sentence. Wasn't 'extern' already in "K&R" - so
> >> what was "the language" before the addition of 'extern'?
> >> 
> >> Or did you just mean to say "[...] before _combinations_ of
> >> 'extern' and other storage-class specifier were added to the
> >> language."
> >> 
> >> Janis, puzzled  
> >
> > K&R was published in 1978, 5 years after C got its first users.
> > Back in 1973-74 C language was significantly different from what it
> > became few years later.  
> 
> The earliest C reference I have is cman74.pdf, currently at
> <http://cm.bell-labs.co/who/dmr/cman74.pdf>.  It includes "extern" in
> the list of keywords.
> 
> It was inherited from B, which had "extrn" as a keyword as of 1972.
> 

O.k. Then David Brown will have to look for different justification for
this particular misfeature of great majority of Unix implementations of
C language.