std::set - like function object support in my container - c++

Question

I have implemented my own container:
template<typename T>
class MyContainer
{
// body where in some point 2 elements of collection are compared (-1, 0 and 1 possible comparison results)
};
What I want to do is add support of function objects, just like in std::set, where it is possible to do function object like this:
struct Comparator
{
bool operator()(const char* s1, const char* s2) const
{
return strcmp(s1, s2) < 0;
}
};
and then pass it as set parameter:
std::set<const char*, Comparator> SomeSet;
I'm not every-day C++ programmer, so I need help to achieve that. What must I do in order to add support to this? Must I create field in MyContainer in order to store function object in it to use it in my sorting methods inside container?

Answer 1

I resolved it by adding default template value, and defining default comparing class:
template<typename T, class Compare = DefaultTreeOrder<T>>
class MyContainer
{
private:
Compare compare;
public:
MyContainer()
{
compare = Compare();
}
};
where DefaultTreeOrder is:
template<typename T>
class DefaultTreeOrder
{
public:
int operator()(T value1, T value2)
{
less<T> l;
greater<T> g;
if(l(value1, value2))
{
return 1;
}
else if(g(value1, value2))
{
return -1;
}
return 0;
}
};