[En-Nut-Discussion] Hardware Register Access Using Volatile Pointer

[Bernard Fouché]

Le 26/04/2011 18:45, Bernd Walter a écrit :
>> A few tests with GCC 4.6 showed, that the read is conserved. But is that
>> a proof?
> It's just an evidence - the documentation is a proof, but just for GCC.
>
volatile being implementation defined, the compiler's documentation is 
the only proof we can have. The number of endless discussions regarding 
this keyword proves that the C standard committee missed something.

An interesting reading about volatile: http://blog.regehr.org/archives/28 .