#include <iostream>
#include <cstdlib>
#include <functional>   //for greater, binder2nd, and bind2nd
using namespace std;

template <class PREDICATE>
void f(const PREDICATE& predicate)
{
	if (predicate(100.0)) {
		cout << "100.0 passes the test.\n";
	} else {
		cout << "100.0 fails the test.\n";
	}
}

int main()
{
	greater<double> g;

	if (g(100.0, 98.6)) {                //if (g.operator()(100.0, 98.6)) {
		cout << "You have a fever.\n";
	} else {
		cout << "Your temperature is normal.\n";
	}

	binder2nd<greater<double> > fever(g, 98.6);

	if (fever(100.0)) {                  //if (fever.operator()(100.0)) {
		cout << "You have a fever.\n";
	} else {
		cout << "Your temperature is normal.\n";
	}

	f(fever);
	f(binder2nd<greater<double> >(g, 98.6));
	f(bind2nd(g, 98.6));
	f(bind2nd(greater<double>(), 98.6));

	return EXIT_SUCCESS;
}