Liste_bloc.h

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#ifndef Liste_bloc_included
#define Liste_bloc_included
 
#include <TRUST_Deriv.h>
 
/*! @brief The Liste_bloc and Liste_bloc_curseur classes represent a list of Deriv<Objet_U> elements and an associated cursor.
 *
 */
class Liste_bloc: public Objet_U
{
  Declare_instanciable_sans_constructeur_ni_destructeur(Liste_bloc);
public:
  Liste_bloc() { suivant_ = this; }
  ~Liste_bloc() override;
 
  inline int est_vide() const { return suivant_ == this; }
  inline Objet_U& valeur() { return data.valeur(); }
  inline const Objet_U& valeur() const { return data.valeur(); }
  inline int est_dernier() const { return (est_vide() || (!suivant_)); }
  inline Objet_U* operator ->() { return &(valeur()); }
  inline const Objet_U* operator ->() const { return &(valeur()); }
  inline const Liste_bloc& suivant() const { return *suivant_; }
  inline Liste_bloc& suivant() { return *suivant_; }
 
  Objet_U& operator[](int);
  Objet_U& add_deplace(DerObjU&);
 
  void vide();
  Liste_bloc& dernier();
 
protected:
  DerObjU data;
  Liste_bloc *suivant_ = nullptr;
};
 
class Liste_bloc_curseur
{
public :
  inline Liste_bloc_curseur(const Liste_bloc& a_list) : curseur((Liste_bloc*) &a_list) { if(a_list.est_vide()) curseur = nullptr; }
  inline const Objet_U& valeur() const { return curseur->valeur(); }
  inline Objet_U& valeur() { return curseur->valeur(); }
  inline Objet_U* operator ->() { return curseur->operator->(); }
  inline const Objet_U* operator ->() const { return curseur->operator->(); }
  inline const Liste_bloc& list() const { return *curseur; }
  inline Liste_bloc& list() { return *curseur; }
  inline operator bool() const { return (curseur != nullptr); }
  inline void operator ++()
  {
    if (curseur->est_dernier()) curseur = nullptr;
    else curseur = &(curseur->suivant());
  }
 
  inline Liste_bloc& operator=(const Liste_bloc& a_list)
  {
    curseur = (Liste_bloc*) (&a_list);
    return *curseur;
  }
 
private :
  Liste_bloc* curseur = nullptr;
};
 
#endif /* Liste_bloc_included */