| 16 | 
  | 
  void   set_a(int index)    {a = index;} | 
| 17 | 
  | 
  int    get_b()             {return b;} | 
| 18 | 
  | 
  void   set_b(int index)    {b = index;} | 
| 19 | 
< | 
0  double get_dsqr()          {return dsqr;} | 
| 19 | 
> | 
  double get_dsqr()          {return dsqr;} | 
| 20 | 
  | 
  void   set_dsqr(double ds) {dsqr = ds;} | 
| 21 | 
  | 
 | 
| 22 | 
  | 
private: | 
| 45 | 
  | 
}; | 
| 46 | 
  | 
 | 
| 47 | 
  | 
 | 
| 48 | 
< | 
class Integrator{ | 
| 48 | 
> | 
class BaseIntegrator{ | 
| 49 | 
  | 
   | 
| 50 | 
  | 
public: | 
| 51 | 
< | 
  Integrator(){} | 
| 52 | 
< | 
  virtual ~Integrator(){} | 
| 51 | 
> | 
  BaseIntegrator(){} | 
| 52 | 
> | 
  virtual ~BaseIntegrator(){} | 
| 53 | 
  | 
   | 
| 54 | 
  | 
  virtual void integrate( void ) = 0; | 
| 55 | 
+ | 
  virtual double  getConservedQuantity(void) = 0;   | 
| 56 | 
  | 
}; | 
| 57 | 
  | 
 | 
| 57 | 
– | 
 | 
| 58 | 
  | 
#endif |