[Bug c++/80390] std::pair of aligned type gives bogus warning

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80390

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-04-20
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The new-expression comes from <type_traits> where we check if the pair members
are constructible.

I'm not sure whether we'd want to suppress this warning in a SFINAE context, or
if the library should use a placement new-expression there instead.