Function main

tests/Issue184.cpp:28–38

};

int main()
{
    std::unordered_set<Customer, CustomerHash, CustomerEq> set1;
    std::unordered_set<Customer, ManyParentsWithOperator<CustomerHash, CustomerEq>, ManyParentsWithOperator<CustomerHash, CustomerEq>> set2;
    std::unordered_set<Customer, ManyParentsWithOperator<CustomerEq, CustomerHash>, ManyParentsWithOperator<CustomerEq, CustomerHash>> set3;

    set1.emplace("Test");
    set2.emplace("Test");
    set3.emplace("Test");
    return 0;
}