[Bug c++/98822] Rejects-valid: instantiation of class template instantiates (all) constrained non-template friend definitions (, even those) with unsatisfied constraints

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98822

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
> MSVC accepts the final example above
Looks like that has changed in a recent build.
MSVC now errors out with:
<source>(4): error C2084: function 'void S<1>::f(int)' already has a body
<source>(4): note: see previous definition of 'f'
<source>(9): note: see reference to class template instantiation 'S<2>' being
compiled