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<center><b><big><big>AD Boolean Functions: Example and Test</big></big></b></center>
<code><font color="blue"><pre style='display:inline'> 

# include &lt;cppad/cppad.hpp&gt;
# include &lt;complex&gt;


// define abbreviation for double precision complex 
typedef std::complex&lt;double&gt; Complex;

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

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

		return axsq &gt;= aysq;
	}

	// Create version of IsReal with <a href="ad.xml" target="_top">AD</a>&lt;Complex&gt; argument
	// inside of namespace and outside of any other function.
	CPPAD_BOOL_UNARY(Complex, IsReal)

	// Create version of AbsGeq with <a href="ad.xml" target="_top">AD</a>&lt;Complex&gt; arguments
	// inside of namespace and outside of any other function.
	CPPAD_BOOL_BINARY(Complex, AbsGeq)

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

	CppAD::<a href="ad.xml" target="_top">AD</a>&lt;Complex&gt; x = Complex(1.,  0.);
	CppAD::<a href="ad.xml" target="_top">AD</a>&lt;Complex&gt; y = Complex(1.,  1.);

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

	return ok;
}

</pre>

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<hr/>Input File: example/bool_fun.cpp

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