<?xml version='1.0'?> <?xml-stylesheet type='text/xsl' href='pmathml.xsl'?> <html xmlns='http://www.w3.org/1999/xhtml'> <head> <title>AD Boolean Functions: Example and Test</title> <meta name="description" id="description" content="AD Boolean Functions: Example and Test"/> <meta name="keywords" id="keywords" content=" example Ad bool test "/> <style type='text/css'> body { color : black } body { background-color : white } A:link { color : blue } A:visited { color : purple } A:active { color : purple } </style> <script type='text/javascript' language='JavaScript' src='_boolfun.cpp_xml.js'> </script> </head> <body> <table><tr> <td> <a href="http://www.coin-or.org/CppAD/" target="_top"><img border="0" src="_image.gif"/></a> </td> <td><a href="boolfun.xml" target="_top">Prev</a> </td><td><a href="parvar.xml" target="_top">Next</a> </td><td> <select onchange='choose_across0(this)'> <option>Index-></option> <option>contents</option> <option>reference</option> <option>index</option> <option>search</option> <option>external</option> </select> </td> <td> <select onchange='choose_up0(this)'> <option>Up-></option> <option>CppAD</option> <option>AD</option> <option>BoolValued</option> <option>BoolFun</option> <option>BoolFun.cpp</option> </select> </td> <td> <select onchange='choose_down3(this)'> <option>AD-></option> <option>Default</option> <option>ad_copy</option> <option>Convert</option> <option>ADValued</option> <option>BoolValued</option> <option>VecAD</option> <option>base_require</option> </select> </td> <td> <select onchange='choose_down2(this)'> <option>BoolValued-></option> <option>Compare</option> <option>NearEqualExt</option> <option>BoolFun</option> <option>ParVar</option> <option>EqualOpSeq</option> </select> </td> <td> <select onchange='choose_down1(this)'> <option>BoolFun-></option> <option>BoolFun.cpp</option> </select> </td> <td>BoolFun.cpp</td> <td>Headings</td> </tr></table><br/> <center><b><big><big>AD Boolean Functions: Example and Test</big></big></b></center> <code><font color="blue"><pre style='display:inline'> # 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 <a href="ad.xml" target="_top">AD</a><Complex> 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><Complex> 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><Complex> x = Complex(1., 0.); CppAD::<a href="ad.xml" target="_top">AD</a><Complex> y = Complex(1., 1.); ok &= IsReal(x); ok &= ! AbsGeq(x, y); return ok; } </pre> </font></code> <hr/>Input File: example/bool_fun.cpp </body> </html>