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odeprobl.h

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// FILE odeprobl.h


#ifndef  INCLUDED_ODEPROBL_H
#define  INCLUDED_ODEPROBL_H


#include "vndinl.h"
#include "vndobj.h"
#include "odesol.h"


typedef void (*FCN)( INTERVAL *yp, const INTERVAL *y );

typedef void  (*EXACT_SOL)( INTERVAL_VECTOR & Yexact, 
                            const INTERVAL & t,
                            const INTERVAL_VECTOR & Y0, 
                            double t0 );


class ODE_PROBLEM : private NAME
{
  
public:
  
  NAME::GetName;
  
  ODE_PROBLEM( int n, FCN fcn, const string & name );

  int GetSize() const;  
  
  void SetT0( double t0 );
    
  void SetInitCond( const INTERVAL_VECTOR & Y ); 

  void SetInitCond( const PtrSolution IC ); 
  
  double  GetT0() const;
  
  const INTERVAL_VECTOR & GetInitCond() const;
  
  const PtrSolution GetPtrInitCond() const;
    
  void  ConstCoeff( bool cc );
    
  bool  ExactSol()      const;
  
  bool  PointInitCond() const;
  
  bool  ScalarProblem() const;
    
  bool  ConstCoeff()    const;
                                   
  void CompRightSide( INTERVAL_VECTOR & YP, const INTERVAL_VECTOR & Y ) const;
  
  void SetCompExactSol( EXACT_SOL f );
  
  void CompExactSol( INTERVAL_VECTOR & Y, const INTERVAL & t );
  
  virtual ~ODE_PROBLEM();
  
private:
  
  int   Size;             
  
  FCN   Fcn;             
  
  PtrSolution  InitCond;     
  
  EXACT_SOL CompSol;         
  
  class PROBLEM_INFO
  {
  public:
    bool ConstCoeff;   
    
    bool Scalar;       
    
    bool ExactSol;     
    
    bool PointInitCond;
    
    PROBLEM_INFO() : ConstCoeff(false), Scalar(false), 
      ExactSol(false), PointInitCond(true) {;}
  } 
  ProblemInfo; 
  
};



inline void ODE_PROBLEM :: SetT0( double t0 ) 
{ 
  assert( NotNull(InitCond) );
  InitCond->SetTcur(t0); 
}


inline void ODE_PROBLEM :: SetInitCond( const PtrSolution IC ) 
{ 
  assert( NotNull(IC) );
  assert( GetSize() == IC->GetDim() );
  DELETE(InitCond); 
  InitCond = IC; 
}


inline void  ODE_PROBLEM :: SetCompExactSol( EXACT_SOL f ) 
{ 
  assert(NotNull(f)); 
  CompSol = f; 
}


inline int ODE_PROBLEM :: GetSize() const 
{ 
  return Size;
}


inline double ODE_PROBLEM :: GetT0() const    
{ 
  assert( NotNull(InitCond) ); 
  return InitCond->GetTcur(); 
}


inline const INTERVAL_VECTOR & ODE_PROBLEM :: GetInitCond() const 
{ 
  assert( NotNull(InitCond) );
  return InitCond->GetTightEncl(); 
}


inline const PtrSolution ODE_PROBLEM :: GetPtrInitCond() const 
{ 
  assert( NotNull(InitCond) );
  return InitCond;
}


inline void ODE_PROBLEM :: ConstCoeff( bool cc ) 
{ 
  ProblemInfo.ConstCoeff = cc; 
}


inline bool ODE_PROBLEM :: ExactSol() const       
{ 
  return CompSol == NULL? false:true; 
}


inline bool ODE_PROBLEM :: PointInitCond() const  
{ 
  return  ProblemInfo.PointInitCond; 
}


inline bool ODE_PROBLEM :: ScalarProblem() const  
{ 
  return ProblemInfo.Scalar; 
}  


inline bool ODE_PROBLEM :: ConstCoeff() const  
{ 
  return ProblemInfo.ConstCoeff; 
}


inline void  ODE_PROBLEM :: CompExactSol( INTERVAL_VECTOR & Y, 
                                          const INTERVAL & t ) 
{ 
  assert(CompSol); 
  CompSol(Y,t, GetInitCond(), GetT0() ); 
}


inline void ODE_PROBLEM::
CompRightSide( INTERVAL_VECTOR & YP, const INTERVAL_VECTOR & Y ) const
{
  assert(Fcn);
  Fcn( THE_ELEM(YP), THE_ELEM(Y) );  
}


inline ODE_PROBLEM :: ~ODE_PROBLEM()  
{ 
  DELETE(InitCond); 
}


#endif 

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