AD Boolean Functions: Example and Test
Keywords: ad boolean functions: example test bool

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AD Boolean Functions: Example and Test
`

    # include <cppad/cppad.hpp>
    # include <complex>

    // define abbreviation for double precision complex
    typedef std::complex<double> Complex;

    namespace {
    	// a unary bool function with Complex argument
    	static bool IsReal(const Complex &x)
    	{	return x.imag() == 0.; }

    	// a binary bool function with Complex arguments
    	static bool AbsGeq(const Complex &x, const Complex &y)
    	{	double axsq = x.real() * x.real() + x.imag() * x.imag();
    		double aysq = y.real() * y.real() + y.imag() * y.imag();

    		return axsq >= aysq;
    	}

    	// Create version of IsReal with AD<Complex> argument
    	// inside of namespace and outside of any other function.
    	CPPAD_BOOL_UNARY(Complex, IsReal)

    	// Create version of AbsGeq with AD<Complex> arguments
    	// inside of namespace and outside of any other function.
    	CPPAD_BOOL_BINARY(Complex, AbsGeq)

    }
    bool BoolFun(void)
    {	bool ok = true;

    	CppAD::AD<Complex> x = Complex(1.,  0.);
    	CppAD::AD<Complex> y = Complex(1.,  1.);

    	ok &= IsReal(x);
    	ok &= ! AbsGeq(x, y);

    	return ok;
    }

`

Input File: example/bool_fun.cpp