On Mon, 3 Oct 2011, Andrew MacLeod wrote: > On 10/03/2011 01:31 PM, Richard Henderson wrote: > > On 09/30/2011 01:36 PM, Andrew MacLeod wrote: > > > http://gcc.gnu.org/wiki/Atomic/GCCMM/LIbrary > > > > > __atomic_store (size_t obj_size, T *mem, T val, enum memory_model > > > model) > > I don't like this. I really cannot imagine any situation for which the > > compiler can't resolve SIZE to a compile-time constant. I think it's > > pointless to have a dispatch routine that just calls all of > > > its a library call for arbitrary sized objects... C++ can have any class > declared atomic, so it doesn't have to map to one of those optimized lock-free > routines.
Likewise, in C1X you can also apply _Atomic to arbitrary-size structures. -- Joseph S. Myers jos...@codesourcery.com
