Reading a struct from a formatted text file

struct info_type
{
    std::string name;
    int age;
    float height;
    
    // we define an overload of operator>> as a friend function which
    // gives in privileged access to private data members 
    friend std::istream& operator>>(std::istream& is, info_type& info)
    {
        // skip whitespace
        is >> std::ws;
        std::getline(is, info.name);
        is >> info.age;
        is >> info.height;
        return is;
    }
};

void func4()
{
    auto file = std::ifstream("file4.txt");

    std::vector<info_type> v;

    for(info_type info; file >> info;) // keep reading until we run out
    {
        // we only get here if the read succeeded
        v.push_back(info);
    }

    for(auto const& info: v)
    {
        std::cout << "  name: " << info.name << '\n';
        std::cout << "   age: " << info.age << " years" << '\n';
        std::cout << "height: " << info.height << "lbs" << '\n';
        std::cout << '\n';
    }
}