[PATCH] D40381: Parse concept definition

Saar Raz via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Fri Nov 24 06:37:01 PST 2017


saar.raz added inline comments.


================
Comment at: test/CXX/concepts-ts/expr/expr.prim/expr.prim.id/p3.cpp:1
+// RUN:  %clang_cc1 -std=c++1z -fconcepts-ts -fcxx-exceptions -x c++ -verify %s
+// expected-no-diagnostics
----------------
hubert.reinterpretcast wrote:
> saar.raz wrote:
> > Rakete1111 wrote:
> > > There is no `-fconcepts-ts` flag AFAIK. Also, why `-fcxx-exceptions`, it's not needed here. The `-x c++` part too. It should also be `-std=c++2a`.
> > There is a -fconcepts-ts flag (clang -Xclang -fconcepts-ts), I believe now that there is no more Concepts TS the flag should be removed as well and all concepts-related code be put under C++2a ifs.
> This was discussed with Richard, Faisal, and Aaron Ballman before. We would like to use -Xclang -fconcepts until there is enough of an implementation. When we are ready, then we switch to having it directly under C++2a. There is no reason why dealing with the option cannot be done as a separate patch, so I don't think we need to hold up this one for that work.
OK, wasn't aware this was discussed before.
I agree then, leave the -fconcepts-ts for now.


https://reviews.llvm.org/D40381





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