Number.h

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//
// File: Number.h
// Authors:
//   Julien Dutheil
// Created: 2003-11-13 16:29:03
//
 
/*
  Copyright or © or Copr. Bio++ Development Team, (November 17, 2004)
  
  This software is a computer program whose purpose is to provide utilitary
  classes. This file belongs to the Bio++ Project.
  
  This software is governed by the CeCILL license under French law and
  abiding by the rules of distribution of free software. You can use,
  modify and/ or redistribute the software under the terms of the CeCILL
  license as circulated by CEA, CNRS and INRIA at the following URL
  "http://www.cecill.info".
  
  As a counterpart to the access to the source code and rights to copy,
  modify and redistribute granted by the license, users are provided only
  with a limited warranty and the software's author, the holder of the
  economic rights, and the successive licensors have only limited
  liability.
  
  In this respect, the user's attention is drawn to the risks associated
  with loading, using, modifying and/or developing or reproducing the
  software by the user in light of its specific status of free software,
  that may mean that it is complicated to manipulate, and that also
  therefore means that it is reserved for developers and experienced
  professionals having in-depth computer knowledge. Users are therefore
  encouraged to load and test the software's suitability as regards their
  requirements in conditions enabling the security of their systems and/or
  data to be ensured and, more generally, to use and operate it in the
  same conditions as regards security.
  
  The fact that you are presently reading this means that you have had
  knowledge of the CeCILL license and that you accept its terms.
*/
 
#ifndef BPP_NUMERIC_NUMBER_H
#define BPP_NUMERIC_NUMBER_H
 
#include <string>
 
#include "../Clonable.h"
#include "../Text/TextTools.h"
 
namespace bpp
{
class BppNumberI : public Clonable
{
public:
  BppNumberI() {}
 
  virtual ~BppNumberI() {}
 
public:
  virtual BppNumberI* clone() const = 0;
 
public:
  virtual std::string toString() const = 0;
};
 
 
class BppNotANumber : public virtual BppNumberI
{
public:
  BppNotANumber() {}
 
  virtual ~BppNotANumber() {}
 
public:
  virtual BppNotANumber* clone() const { return new BppNotANumber(); }
 
public:
  virtual std::string toString() const { return "NaN"; }
};
 
 
template<class T> class Number : public virtual BppNumberI
{
protected:
  T value_;
 
public:
  Number(const T& value = 0) : value_(value) {}
 
  virtual ~Number() {}
 
  Number<T>& operator=(const T& t)
  {
    value_ = t;
    return *this;
  }
 
public:
  Number<T>* clone() const { return new Number<T>(value_); }
public:
  T getValue() const { return value_; }
 
  std::string toString() const { return TextTools::toString(value_); }
};
 
class BppDouble : public virtual Number<double>
{
public:
  BppDouble(double value = 0) : Number<double>(value) {}
 
  virtual ~BppDouble() {}
 
public:
  BppDouble* clone() const { return new BppDouble(*this); }
};
 
class BppInteger : public virtual Number<int>
{
public:
  BppInteger(int value = 0) : Number<int>(value) {}
 
  virtual ~BppInteger() {}
 
public:
  BppInteger* clone() const { return new BppInteger(*this); }
};
 
class BppUnsignedInteger : public virtual Number<unsigned int>
{
public:
  BppUnsignedInteger(unsigned int value = 0) : Number<unsigned int>(value) {}
 
  virtual ~BppUnsignedInteger() {}
 
public:
  BppUnsignedInteger* clone() const { return new BppUnsignedInteger(*this); }
};
} // end of namespace bpp.
#endif // BPP_NUMERIC_NUMBER_H