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From: James Kuyper <jameskuyper@alumni.caltech.edu>
Newsgroups: comp.lang.c
Subject: Re: question about linker
Date: Thu, 12 Dec 2024 14:39:09 -0500
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On 12/12/24 00:07, Janis Papanagnou wrote:
> On 12.12.2024 05:38, James Kuyper wrote:
>> On 12/10/24 20:32, Scott Lurndal wrote:
>>> [...]
>>
>> You're confusing name spaces and namespaces.
> 
> It became quite obvious that you both were talking at cross purposes.
> 
> Personally I'd colloquially take both those terms as the same thing,
> but I'm not a native speaker.

They are not.
The C standard does not define the term "name space", relying instead
upon the general CS definition of the term. However, it has a whole
section (6.2.3) devoted to listing and explaining the name spaces that
are relevant to the C language.

In C++, "namespace" is a both a keyword (listed in 5.11p3) and a piece
of terminology (defined in 9.8p1) for the feature enabled by that
keyword. It is clear from those descriptions that a C++ namespace is
significantly different thing from a C name space.
Unlike the C standard, the C++ standard doesn't even bother explaining
name spaces. It makes only two uses of that term on it's own behalf, in
connection with statement labels and macro names - neither usage has any
plausible connection with a namespace. There are several occurrences of
"name space" in the section describing the differences between C and
C++, which make it clear that both standards are using the same meaning
for "name space", but that the two languages have a different number of
name spaces, with different contents.