# include <cppad/cppad.hpp>
# include <sstream> // std::ostringstream# include <string> // std::string# include <iomanip> // std::setprecision, setw, setfill, rightnamespace {
template <class S>
void set_ostream(S &os)
{ os
<< std::setprecision(4) // 4 digits of precision
<< std::setw(6) // 6 characters per field
<< std::setfill(' ') // fill with spaces
<< std::right; // adjust value to the right
}
}
bool ad_output(void)
{ bool ok = true;
// This output stream is an ostringstream for testing purposes.// You can use << with other types of streams; i.e., std::cout.
std::ostringstream stream;
// ouput an AD<double> object
CppAD::AD<double> pi = 4. * atan(1.); // 3.1415926536set_ostream(stream);
stream << pi;
// ouput a VecAD<double>::reference object
CppAD::VecAD<double> v(1);
CppAD::AD<double> zero(0);
v[zero] = exp(1.); // 2.7182818285set_ostream(stream);
stream << v[zero];
// convert output from stream to string
std::string str = stream.str();
// check the output
ok &= (str == " 3.142 2.718");
return ok;
}