#include <cstdlib>
#include <iostream>
#include <string>
#include <vector>
#include <set>
 
class MyClass
{
public:
    typedef unsigned int ContentType;
 
    struct MyCompare
    {
        const MyClass& obj;
        MyCompare(  const MyClass& mc ) : obj(mc) { }
 
        bool operator ()(const ContentType& lhs,
                         const ContentType& rhs) const
        {
            // return something meaningful
            return obj.otherMember[lhs] < obj.otherMember[rhs];
        }
    };
 
    MyClass() : mySet(*this)
    {
    }
 
private:
    std::set<ContentType, MyCompare> mySet;
    std::vector<int> otherMember;
};
 
int main()
{
    MyClass mc;
    return 0;
}

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