[Bug c++/82959] g++ doesn't appreciate C++17 evaluation order rules for overloaded operators

[ixsci at yandex dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82959

--- Comment #1 from Evgeniy Shcherbina <ixsci at yandex dot ru> ---
Not that it matters much, but it should be "int i = -1;" in the code to match
my description fully.