[llvm-dev] [RFC] migrating past C++11
Stephen Kelly via llvm-dev
llvm-dev at lists.llvm.org
Wed Jan 23 12:55:50 PST 2019
On 22/01/2019 21:44, JF Bastien via llvm-dev wrote:
> The compiler versions I propose allow us to use all of C++14, which
> includes:
>
> * Binary literals
> <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf>
> * decltype(auto), Return type deduction for normal functions
> <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3638.html>
> * Initialized/Generalized lambda captures (init-capture)
> <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3648.html>
> * Generic (polymorphic) lambda expressions
> <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3649.html>
> * Variable templates
> <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3651.pdf>
> * Member initializers and aggregates (NSDMI)
> <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3653.html>
> * A bunch of new constexpr language and library features
> * Various other language and library features
>
> See CppReference
> <https://en.cppreference.com/w/cpp/compiler_support> for details.
>
> Of these, I think polymorphic lambdas are the big feature. Of course,
> just like Almost Always Auto, we should use such things only where it
> makes sense.
Note that when we discussed moderate use of `auto` recently, there was
no consensus that auto-in-lambdas (ie polymorphic lambdas) should be
permitted. It's kind of strange to see it hailed as a 'big feature' if
consensus is not that it should be permitted.
Is there a need for more guidelines about this or any other of these
newly-unlocked features?
Thanks,
Stephen.
More information about the llvm-dev
mailing list