#include <boost/heap/skew_heap.hpp>
#include <iostream>

class thing {
public:
	thing( int a_, int b_ ) : a(a_), b(b_) {}
public:
	int a;
	int b;
};

class cmpthings {
public:
	bool operator() ( const thing& lhs, const thing& rhs ) const  {
		return lhs.a > rhs.a;
	}
	bool operator() ( const thing& lhs, const thing& rhs ) {
		return lhs.a > rhs.a;
	}
};

int main(){

    cmpthings ord;
	boost::heap::skew_heap<thing, boost::heap::compare<cmpthings>> vpq(ord);

    vpq.emplace(5,6);	
}