https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88466
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Duarte from comment #0) > It seems, however, that neither std::hardware_destructive_interference_size > nor std::hardware_constructive_interference_size have been included in > libstdc++. As clearly documented: https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.2017 The feature is broken by design and it's unclear how we want to proceed. Once we pick a value we can never change it, because it becomes an ABI property.
