# include <cppad/cppad.hpp>

bool Integer(void)
{	bool ok = true;
	using CppAD::AD;
	using CppAD::Integer;

	// domain space vector
	size_t n = 2;
	CPPAD_TEST_VECTOR< AD<double> > x(n);
	x[0] = 3.5;
	x[1] = 4.5;

	// check integer before recording
	ok &= (Integer(x[0]) == 3);
	ok &= (Integer(x[1]) == 4);

	// start recording

	// declare independent variables and start tape recording
	CppAD::Independent(x);

	// check integer during recording
	ok &= (Integer(x[0]) == 3);
	ok &= (Integer(x[1]) == 4);

	// check integer for VecAD element
	CppAD::VecAD<double> v(1);
	AD<double> zero(0);
	v[zero] = 2;
	ok &= (Integer(v[zero]) == 2);

	// range space vector 
	size_t m = 1;
	CPPAD_TEST_VECTOR< AD<double> > y(m);
	y[0] = - x[1];

	// create f: x -> y and stop recording
	CppAD::ADFun<double> f(x, y);

	// check integer after recording
	ok &= (Integer(x[0]) ==  3.);
	ok &= (Integer(x[1]) ==  4.);
	ok &= (Integer(y[0]) == -4.);

	return ok;
}