On Wed, 2012-03-14 at 12:00 -0700, Richard Henderson wrote: > On 03/14/12 11:54, Paweł Sikora wrote: > > is this yet another libatomic implementation better than atomic_ops? > > > > http://www.hpl.hp.com/research/linux/atomic_ops/ > > https://github.com/ivmai/libatomic_ops/
It's serves a similar purpose. libatomic_ops was library/header-only portable support for atomic operations. libatomic is the fallback library for a compiler that supports the C++11/C11 memory model and atomic types. libatomic_ops has a different set of memory orders, although for example acquire/release should be similar. If you're still using libatomic_ops, consider moving to the C++11/C11 memory model. > > My implementation is targeted at the requirements of C++11. > The projects you reference are not. Nonetheless, libatomic_ops can be an input for libatomic, although we cover a lot of arcs already in the GCC builtins and code generator. Torvald
