On Sat, 10 Oct 2020 at 20:47, David Brown <david.brown@xxxxxxxxxxxx> wrote: > On 09/10/2020 23:35, Toby Douglass wrote: > > The 4.1.2 atomics or the later, replacement API? > > > > I am not sure what you mean here, or what "4.1.2" refers to - it doesn't > match either the gcc manual or the C standards as far as I can see. I assume this means GCC 4.1.2 which was the first to support the __sync built-ins <https://gcc.gnu.org/onlinedocs/gcc/_005f_005fsync-Builtins.html>, which were superseded by the __atomic ones <https://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html>
