svn commit: r251804 - head/sys/sys

[Tijl Coosemans]

On 2013-06-16 12:48, Ed Schouten wrote:
> Author: ed
> Date: Sun Jun 16 10:48:47 2013
> New Revision: 251804
> URL: http://svnweb.freebsd.org/changeset/base/251804
> 
> Log:
>   Move _Atomic() into <sys/cdefs.h>.
>   
>   That way _Atomic() is defined next to all the other C11 keywords for
>   which we provide compatibility for pre-C11 compilers. While there, fix
>   the definition to place "volatile" at the end. Otherwise pointer types
>   will become "volatile T *" instead of "T * volatile".

Do you even need volatile? It seems the only place this has an effect
is initialisation, but there's not supposed to be any concurrent access
then, meaning the value isn't volatile at that point.

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