[Bug c++/107958] Ambiguity with uniform initialization in overloaded operator and explicit constructor

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107958

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Obvious workaround is to do:
    p = PairPtr{ a, b };