On 20/11/2014 12:45, Dr. David Alan Gilbert wrote: > > For this case QEMU has atomic_read/atomic_set (corresponding to > > __ATOMIC_RELAXED in C/C++1x), so you could use those as well. > > Ah, so those look like they just volatile cast anyway.
Yeah, but it explicitly shows that the assignment is a) for a multi-threaded operation b) using relaxed semantics. It attaches the information to the use instead of the variable; it just happens that volatile is the pre-C11 way to express those. Paolo