#include <iostream>
#include "StatTools/Funct/FunctManip.h"
#include "StatTools/Funct/FunctIO.h"

struct Exponential
{
  explicit Exponential( double ll ) : l( ll ) { }
  double operator()( double x ) const { return exp( l * x ); }
  double l;
};

std::ostream& operator<<( std::ostream& cout, const Exponential& e )
{ return cout << "exp( " << e.l << " x )"; }

using namespace Funct;

int main()
{
  Exponential e1( 2 );
  Exponential e2( 3 );
  // verify no simplification occours
  std::cout << e1 / e2 << std::endl;
  return 0;
}