[PATCH] D41977: [libc++] Fix PR20855 -- libc++ incorrectly diagnoses illegal reference binding in std::tuple.

[Eric Fiselier via Phabricator via cfe-commits]

EricWF added a comment.

In https://reviews.llvm.org/D41977#975403, @rsmith wrote:

> This will still diagnose valid and reasonable programs, such as:
>
>   struct ConvertToRef { operator int&(); };
>   std::tuple<int&> t = {ConvertToRef()};
>
>
> ... on compilers that don't provide the trait. You could maybe try to work around that by checking to see if the type has a member `.operator int&()`. But perhaps it's better to remove the non-conforming check entirely, at least in the case where you can't reasonably get it right.


I agree with both your comments. I'll remove the non-conforming check.


https://reviews.llvm.org/D41977