variable.h

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 *   Copyright (c) 2005-2026 by                                             *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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#ifndef GUM_VARIABLE_H
#define GUM_VARIABLE_H
 
#include <iostream>
#include <string>
 
#include <agrum/agrum.h>
 
#include <string_view>
 
namespace gum {
 
  enum class VarType : char { DISCRETIZED, LABELIZED, INTEGER, NUMERICAL, RANGE, CONTINUOUS };
 
  /* ===========================================================================
   */
  /* ===========================================================================
   */
  /* ===                            GUM_VARIABLE                             ===
   */
  /* ===========================================================================
   */
  /* ===========================================================================
   */
  /* ===========================================================================
   */
 
  class GUM_SHARED_PUBLIC Variable {
    public:
    // ############################################################################
    // ############################################################################

 
    virtual ~Variable();

    [[nodiscard]] virtual Variable* clone() const = 0;

 
    // ############################################################################
    // ############################################################################


 
    Variable& operator=(const Variable& aRV);

    bool operator==(const Variable& aRV) const;
 

 
    // ############################################################################
    // ############################################################################


    void setName(std::string_view theValue);

    const std::string& name() const;


    void setDescription(std::string_view theValue) const;

    const std::string& description() const;

    virtual VarType varType() const = 0;

    virtual std::string domain() const = 0;

 
    protected:
    Variable() { GUM_CONSTRUCTOR(Variable); }


    void copy_(const Variable& aRV);


    Variable(std::string_view aName, std::string_view aDesc);


    Variable(const Variable& aRV);
 
    private:
    std::string _name_;

    mutable std::string _description_;


    virtual bool _checkSameDomain_(const Variable& aRV) const = 0;
  };
 
} /* namespace gum */

std::ostream& operator<<(std::ostream& s, const gum::Variable& LDRV);
 
#ifndef GUM_NO_INLINE
#  include <agrum/base/variables/variable_inl.h>
#endif /* GUM_NO_INLINE */
 
#endif /* GUM_VARIABLE_H */