NotCached.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2005 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// psrchive/More/MEAL/MEAL/NotCached.h
 
#ifndef __NotCached_H
#define __NotCached_H
 
#include "MEAL/CalculatePolicy.h"
 
namespace MEAL
{
  
 
  template<class T>
  class NotCached : public CalculatePolicy<T>
  {
  public:
 
    typedef typename T::Result Result;
 
    NotCached (T* context) : CalculatePolicy<T> (context) { }
 
    Result evaluate (std::vector<Result>* grad) const try
    { 
      if (grad)
        grad->resize (this->get_context()->get_nparam());
 
      Result r; 
      this->calculate (r, grad);
 
      this->get_context()->set_evaluation_changed (false);
      return r;
    }
    catch (Error& error)
      {
        throw error += class_name() + "evaluate";
      }
 
    std::string class_name() const
    { return "MEAL::NotCached[" + this->get_context()->get_name() + "]::"; }
 
  };
 
}
 
#endif