Andrew Haley wrote:
David Daney writes:> There is nothing that says that __sync_compar_and_swap() cannot expand > to a libcall.Err, if a port doen't have an implementation, that's what gcc does anyway. :-)
That's what the docs say, but actually if you try to use __sync_* on ARM you'll get a linker error. A library implementation would need to be OS-specific.
Phil.
