[Bug libstdc++/101482] operator== for basic_string and __versa_string should check sizes first

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101482

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-06-16
           Assignee|unassigned at gcc dot gnu.org      |redi at gcc dot gnu.org
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |ASSIGNED

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jiang An from comment #0)
> It seems that the resolution should be generalized to all specializations of
> basic_string (by removing the legacy operator== overload and SFINAE in the
> new overload, which is already done by libc++ and msvc stl).

Yes, https://wg21.link/lwg2852 clarified that we can do that.


> IMO the
> generalized resolution can also be applied to operator== for __versa_string.

Yes I'll do that, thanks.