Re: [boost] Attribute names with underscores for GCC

Subject: Re: [boost] Attribute names with underscores for GCC
From: Eric Niebler (eric_at_[hidden])
Date: 2012-01-20 21:38:09

On 1/20/2012 10:16 AM, Michel Morin wrote:
> Recently, Petr Machata created several trac tickets for requesting
> the use of attribute names with underscores for GCC.
> Since there is no link to the GCC's documentation in the tickets,
> I'd like to put a link to the documentation.
> 
> In the GCC's manuals --> "Extensions to the C Language Family" -->
> "Declaring Attributes of Functions", "Specifying Attributes of Variables",
> and "Specifying Attributes of Types",
> there is description about attributes with preceding and following `__`:
> 
>     You may also specify attributes with `__' preceding and following
>     each keyword. This allows you to use them in header files without
>     being concerned about a possible macro of the same name.
>     For example, you may use __noreturn__ instead of noreturn.
> 
> Here are links to the gcc-2.9.5's documentation:
>     http://gcc.gnu.org/onlinedocs/gcc-2.95.3/gcc_4.html#SEC84
>     http://gcc.gnu.org/onlinedocs/gcc-2.95.3/gcc_4.html#SEC90
>     http://gcc.gnu.org/onlinedocs/gcc-2.95.3/gcc_4.html#SEC91
> 
> I also checked manuals of gcc-3.0.4 and 4.0.4, and found the same description.
> 
> Hope this helps,
> Michel

Thank you, yes it helps. I was disinclined to make the change, but now
I'll accept his patches.

-- 
Eric Niebler
BoostPro Computing
http://www.boostpro.com