[llvm-dev] [RFC] migrating past C++11 (original) (raw)

Nathan Froyd via llvm-dev llvm-dev at lists.llvm.org
Tue Jan 22 13:55:57 PST 2019

On Tue, Jan 22, 2019 at 4:45 PM JF Bastien via llvm-dev < llvm-dev at lists.llvm.org> wrote:

I propose instead:

- Clang 3.5 (released 2014/07) to get -std=c++14 instead of -std=c++1y - Apple Clang 6.0 (released 2014/07) to match clang 3.5 - GCC 5.1 (released 2015/04) because C++14 mostly came to be in GCC 5 - Visual Studio 2017 (released 2017/03) so that we get extended constexpr and NSDMI This is a most excellent proposal. I know Firefox's C++ page says that extended constexpr support in GCC 5.0, but my recollection is that the support is much improved in GCC 6.1+. GCC 6.x's constexpr support was certainly the driving motivation for Firefox's requiring GCC 6.1. You may want to consider bumping your GCC support level a bit; according to your table, it leaves Ubuntu 16.04 out in a cold a little bit, but maybe that's OK?

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