rectangular_function.h

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#ifndef MYGSL_RECTANGULAR_FUNCTION_H
#define MYGSL_RECTANGULAR_FUNCTION_H

// Third party:
// - Bayeux/datatools :
#include <datatools/i_cloneable.h>

// This project:
#include <mygsl/i_unary_function.h>

namespace mygsl {

  class rectangular_function
    : public i_unary_function,
      public datatools::i_cloneable
  {
  public:

    enum convention_type {
      CONVENTION_INVALID          = 0,
      CONVENTION_HALF_MAXIMUM     = 1,
      CONVENTION_INNER_CONTINUOUS = 2,
      CONVENTION_OUTER_CONTINUOUS = 3,
      CONVENTION_CONTINUOUS       = 4
    };

    rectangular_function(convention_type convention_ = CONVENTION_INVALID);

    virtual ~rectangular_function();

    void set_convention(convention_type convention_);

    convention_type get_convention() const;

    virtual bool is_initialized() const;

    virtual void initialize(const datatools::properties & config_,
                            const unary_function_dict_type & functors_);

    virtual void reset();

    double get_non_zero_domain_min() const;

    double get_non_zero_domain_max() const;

    virtual void tree_dump(std::ostream & out_ = std::clog,
                           const std::string & title_  = "",
                           const std::string & indent_ = "",
                           bool inherit_ = false) const;

  protected:

    double _eval(double x_) const;

    void _set_defaults();

  private:

    convention_type _convention_ = CONVENTION_HALF_MAXIMUM; 

    MYGSL_UNARY_FUNCTOR_REGISTRATION_INTERFACE(rectangular_function)

    
    DATATOOLS_CLONEABLE_DECLARATION(rectangular_function)

  };

} // namespace mygsl

#endif // MYGSL_RECTANGULAR_FUNCTION_H

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