Convert From AD to its Base Type: Example and Test
Keywords: convert from ad to its base type: example test Value record

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Convert From AD to its Base Type: Example and Test
`

    # include <cppad/cppad.hpp>

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

    	// domain space vector
    	size_t n = 2;
    	CPPAD_TESTVECTOR(AD<double>) x(n);
    	x[0] = 3.;
    	x[1] = 4.;

    	// check value before recording
    	ok &= (Value(x[0]) == 3.);
    	ok &= (Value(x[1]) == 4.);

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

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

    	// cannot call Value(x[j]) or Value(y[0]) here (currently variables)
    	AD<double> p = 5.;        // p is a parameter (does not depend on x)
    	ok &= (Value(p) == 5.);

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

    	// can call Value(x[j]) or Value(y[0]) here (currently parameters)
    	ok &= (Value(x[0]) ==  3.);
    	ok &= (Value(x[1]) ==  4.);
    	ok &= (Value(y[0]) == -4.);

    	return ok;
    }

`

Input File: example/value.cpp