Using a template function inside a class

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Hi, I have a template function

C++

template<class /> double RombergIntegral(const double& a, const double& b,const T& f, const int& order)

for calculating the integral of a function in [a,b] which I want to use inside a non-templated class for integrating a class member function like

C++

double MyModel::function(double t)

In particular I would like to do this inside another member function, i.e I want to write something like

double MyModel::integral_function(double t) {

    return RombergIntegral<double(double)>(0.0,t,&MyModel::function,5)

}

which doesn't work. What is the best way to do this?

Posted 19-Nov-09 3:42am

GSyr

Updated 19-Nov-09 11:14am

Gordon Brandly

v2

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CPallini · Answer 1 · 2009-11-20T20:52:00

You may try

template <typename T>
double RombergIntegral(const double& a, const double& b, static T (*f)(T), const int& order)
{
  //stuff here...
}

class MyModel
{ 
public:
  static double function(double t)
  {
    // stuff here...
  }
  double integral_function(double t) 
  {
    return RombergIntegral < double > (0.0, t, &MyModel::function, 5);
  }
};