[Bug libstdc++/71098] uniform initialization for nested tuples work in c++11/14 mode but should only work >=c++17

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71098

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I assume you're referring to the conditionally EXPLICIT constructors. That
fixed a defect and is supported all the way back to C++11, as per our usual
policy.