#include "Minuit2/FCNBase.h"
#include "Minuit2/MnStrategy.h"
#include "Minuit2/MnMigrad.h"
#include "Minuit2/MnUserParameters.h"
#include "Minuit2/FunctionMinimum.h"
#include <iostream>
using std::cout;
using std::endl;

using namespace ROOT::Minuit2;

class myFunc : public FCNBase {
public: 
	virtual double operator() (const std::vector<double> & x) const {cout << "!"<< endl;return 1;}
	virtual double Up() const { return 0.5; }
};

void testscript()
{
	MnStrategy Strategy(0);

	MnUserParameters upar;
	upar.Add("par0", 0, 0.1);
	
	myFunc Fcn;

	MnMigrad Minimizer(Fcn, upar, Strategy);
	
	FunctionMinimum Minimum = Minimizer();
	
	cout << Minimizer.Params()[0] << endl;
}