Re: what does __foo means.

[Kyle Moffett]

On Dec 07, 2004, at 10:52, Bodo Eggert wrote:
> ---http://www.mozilla.org/hacking/portable-cpp.html---
> According to the C++ Standard, 17.4.3.1.2 Global Names 
> [lib.global.names],
> paragraph 1:
>
> Certain sets of names and function signatures are always reserved to 
> the
> implementation:
> Each name that contains a double underscore (__) or begins with an
> underscore followed by an uppercase letter (2.11) is reserved to the
> implemenation for any use.
> Each name that begins with an underscore is reserved to the 
> implementation
> for use as a name in the global namespace.
> ---

The Linux kernel, however, _is_ "the implementation", at least in 
kernel space.
Aside from a very few libgcc functions, almost all symbols are 
available to
kernel developers, though not all are necessarily a good idea. :-D

Cheers,
Kyle Moffett

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