\(\newcommand{\W}[1]{ \; #1 \; }\) \(\newcommand{\R}[1]{ {\rm #1} }\) \(\newcommand{\B}[1]{ {\bf #1} }\) \(\newcommand{\D}[2]{ \frac{\partial #1}{\partial #2} }\) \(\newcommand{\DD}[3]{ \frac{\partial^2 #1}{\partial #2 \partial #3} }\) \(\newcommand{\Dpow}[2]{ \frac{\partial^{#1}}{\partial {#2}^{#1}} }\) \(\newcommand{\dpow}[2]{ \frac{ {\rm d}^{#1}}{{\rm d}\, {#2}^{#1}} }\)

function_name.cpp

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ADFun Function Name: Example and Test

# include <cppad/cppad.hpp>

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

   // create empty function
   CppAD::ADFun<double> f;

   // check its name
   ok &= f.function_name_get() == "";

   // set and check a new name
   f.function_name_set("empty_function");
   ok &= f.function_name_get() == "empty_function";

   // store an operation sequence in f
   size_t nx = 1;
   size_t ny = 1;
   CPPAD_TESTVECTOR( AD<double> ) ax(nx), ay(ny);
   ax[0] = 1.0;
   CppAD::Independent(ax);
   ay[0] = sin(ax[0]);
   f.Dependent(ax, ay);

   // check function name has not changed
   ok &= f.function_name_get() == "empty_function";

   // now set a better name for this function
   f.function_name_set("sin");
   ok &= f.function_name_get() == "sin";

   return ok;
}