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Date:	Wed, 14 Jul 1999 14:09:35 +0200
To:	djgpp AT delorie DOT com
From:	Anton Helm <tony AT dictator DOT nt DOT tuwien DOT ac DOT at>
Subject:	Re: Hiding globals when using flex/bison in a library
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At 10:12 AM 7/14/99 +0300, Eli Zaretskii wrote:

>On 13 Jul 1999, Martin Str|mberg wrote:
>
>Any name that begins with three underscores has two underscores at its
>beginning, right?
>
> > Is there some other way to get unique identifiers?
>
>Not in C, not that I know of, anyway.
>
>The Standard promises that if you don't use any of the names reserved
>by it, you should be safe, but that's only good for applications, not
>for libraries. 

Just for reference:
ISO/IEC 9899:1990 Programming Languages - C, p.97
7.1.3 Reserved identifiers
[...]
- All identifiers that begin with an underscore and either with an 
   uppercase letter or another underscore are always reserved for any use.
- All identifiers that begin with an underscore are always reserved for use
   as identifiers with file scope in both the ordinary identifiers and tag
   name spaces.
[...]


The second paragraph is somewhat unclear to me. 
Well, my english has been better some time ...

Does it mean:
- I am allowed to use _abcdef as an identifier with file scope *ONLY*.

   or

- I am *NOT* allowed to use _abcdef as an identifier with file scope.


Anyone out there to explain that in easy wording ...
... preferably a lawyer ;-)

Tony

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