On Thu, Feb 10, 2022 at 8:36 AM Casey Bodley <cbodley@xxxxxxxxxx> wrote: > > the R release could be a good opportunity to make the switch to c++20 > > gcc and clang both track their support for c++20 features over > compiler versions in: > https://gcc.gnu.org/projects/cxx-status.html#cxx20 > https://clang.llvm.org/cxx_status.html#cxx20 > > thanks to the dev toolset in rhel/centos, we should already have > access to compilers that support c++20. for ubuntu, focal is still on > gcc-9 which doesn't understand -std=c++20 at all, but clang-10 does > > if we're willing to switch our ubuntu builds to clang, we could start > experimenting with c++20 on master now. otherwise, we can wait for the > jammy release in april Don't forget we also need to keep building for older distros. I know it's supposed to be possible and sometimes we've managed to cross-build, but it always seems to be hit-or-miss on any given distro/compiler version. That would be my main concern. -Greg > > in the longer term, i'd love to take advantage of c++20's modules to > speed up ceph builds, but it could take another year or so before > cmake and the compilers support everything we need > > are there any other concerns or obstacles to making this switch? > > _______________________________________________ > Dev mailing list -- dev@xxxxxxx > To unsubscribe send an email to dev-leave@xxxxxxx > _______________________________________________ Dev mailing list -- dev@xxxxxxx To unsubscribe send an email to dev-leave@xxxxxxx
