Simple2x2DetComputer.h

#pragma once

#if defined(Simple2x2DetComputer_RECURSES)
#error Recursive header files inclusion detected in Simple2x2DetComputer.h
#else // defined(Simple2x2DetComputer_RECURSES)

#define Simple2x2DetComputer_RECURSES

#if !defined Simple2x2DetComputer_h

#define Simple2x2DetComputer_h

// Inclusions
#include <iostream>
#include "DGtal/base/Common.h"

#include "DGtal/kernel/NumberTraits.h"
#include "DGtal/kernel/CEuclideanRing.h"

namespace DGtal
{

  // template class Simple2x2DetComputer
  template <typename TArgumentInteger, typename TResultInteger = TArgumentInteger>
  class Simple2x2DetComputer
  {
    // ----------------------- Types  ------------------------------------
  public:
    typedef TArgumentInteger ArgumentInteger; 
    BOOST_CONCEPT_ASSERT(( concepts::CEuclideanRing<ArgumentInteger> )); 
    typedef ArgumentInteger Integer; 
    typedef ArgumentInteger argument_type; 

    typedef TResultInteger ResultInteger; 
    BOOST_CONCEPT_ASSERT(( concepts::CEuclideanRing<ArgumentInteger> )); 

    typedef ResultInteger Value; 
    typedef ResultInteger result_type;
 
    // ----------------------- Standard services ------------------------------
  public:

    Simple2x2DetComputer();

    Simple2x2DetComputer ( const Simple2x2DetComputer & other );

    Simple2x2DetComputer & operator= ( const Simple2x2DetComputer & other );

    ~Simple2x2DetComputer();

    // ----------------------- Interface --------------------------------------
  public:

    void init(const ArgumentInteger& aA, const ArgumentInteger& aB);

    ResultInteger operator()(const ArgumentInteger& aX, const ArgumentInteger& aY) const;

    ResultInteger operator()(const ArgumentInteger& aA, const ArgumentInteger& aB, 
                             const ArgumentInteger& aX, const ArgumentInteger& aY);

    void selfDisplay ( std::ostream & out ) const;

    bool isValid() const;

    // ------------------------- Private Datas --------------------------------
  private:
    ResultInteger myA; 
    ResultInteger myB; 
    mutable ResultInteger myAY; 
    mutable ResultInteger myBX; 

    // ------------------------- Hidden services ------------------------------
  protected:


    // ------------------------- Internals ------------------------------------
  private:

  }; // end of class Simple2x2DetComputer


  template <typename TI, typename TO>
  std::ostream&
  operator<< ( std::ostream & out, const Simple2x2DetComputer<TI,TO> & object );

} // namespace DGtal


// Includes inline functions.
#include "DGtal/geometry/tools/determinant/Simple2x2DetComputer.ih"

//                                                                           //

#endif // !defined Simple2x2DetComputer_h

#undef Simple2x2DetComputer_RECURSES
#endif // else defined(Simple2x2DetComputer_RECURSES)