[Bug c++/81182] result of ‘operator->()’ yields non-pointer result

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81182

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Reduced:

struct S
{
  int i;
};

template<typename>
struct T
{
    auto operator->() { return &s; }
    S s;
};

template<typename>
void problem(T<void>& t)
{
    t->i;
}