C++ define class member struct and return it in a member function

Question

My goal is a class like:

class UserInformation
{
public:
    userInfo getInfo(int userId);
private:
    struct userInfo
    {
        int repu, quesCount, ansCount;
    };
    userInfo infoStruct;
    int date;
};

userInfo UserInformation::getInfo(int userId)
{
    infoStruct.repu = 1000; 
    return infoStruct;
}

but the compiler gives error that in defintion of the public function getInfo(int) the return type userInfo is not a type name.

Answer 1

If the member function is public, then the return type must be publicly visible! Therefore, move the inner struct definition into the public section.

Note also that it must be defined before the function that uses it.