knumber.h

/* This file is part of the KDE libraries
    Copyright (C) 2005 Klaus Niederkrueger <kniederk@math.uni-koeln.de>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/
#ifndef _KNUMBER_H
#define _KNUMBER_H
 
#include <tdelibs_export.h>
 
#include "knumber_priv.h"
 
class TQString;

class TDE_EXPORT KNumber
{
 public:
  static KNumber const Zero;
  static KNumber const One;
  static KNumber const MinusOne;
  static KNumber const Pi;
  static KNumber const Euler;
  static KNumber const NotDefined;

  enum NumType {SpecialType, IntegerType, FractionType, FloatType};

  enum ErrorType {UndefinedNumber, Infinity, MinusInfinity};
 
  KNumber(signed int num = 0);
  KNumber(unsigned int num);  
  KNumber(signed long int num);
  KNumber(unsigned long int num);
  KNumber(unsigned long long int num);
 
  KNumber(double num);
 
  KNumber(KNumber const & num);
  
  KNumber(TQString const & num);
  
  ~KNumber()
  {
    delete _num;
  }
  
  KNumber const & operator=(KNumber const & num);

  NumType type(void) const;

  static void setDefaultFloatOutput(bool flag);

  static void setDefaultFractionalInput(bool flag);

  static void setDefaultFloatPrecision(unsigned int prec);

  static void setSplitoffIntegerForFractionOutput(bool flag);

  TQString const toTQString(int width = -1, int prec = -1) const;
  
  KNumber const abs(void) const;

  KNumber const sqrt(void) const;

  KNumber const cbrt(void) const;

  KNumber const integerPart(void) const;
 
  KNumber const power(KNumber const &exp) const;
 
  KNumber const operator+(KNumber const & arg2) const;
  KNumber const operator -(void) const;
  KNumber const operator-(KNumber const & arg2) const;
  KNumber const operator*(KNumber const & arg2) const;
  KNumber const operator/(KNumber const & arg2) const;
  KNumber const operator%(KNumber const & arg2) const;
 
  KNumber const operator&(KNumber const & arg2) const;
  KNumber const operator|(KNumber const & arg2) const;
  KNumber const operator<<(KNumber const & arg2) const;
  KNumber const operator>>(KNumber const & arg2) const;
 
  operator bool(void) const;
  operator signed long int(void) const;
  operator unsigned long int(void) const;
  operator unsigned long long int(void) const;
  operator double(void) const;
 
  bool const operator==(KNumber const & arg2) const
  { return (compare(arg2) == 0); }
 
  bool const operator!=(KNumber const & arg2) const
  { return (compare(arg2) != 0); }
 
  bool const operator>(KNumber const & arg2) const
  { return (compare(arg2) > 0); }
 
  bool const operator<(KNumber const & arg2) const
  { return (compare(arg2) < 0); }
 
  bool const operator>=(KNumber const & arg2) const
  { return (compare(arg2) >= 0); }
 
  bool const operator<=(KNumber const & arg2) const
  { return (compare(arg2) <= 0); }
 
  KNumber & operator +=(KNumber const &arg);
  KNumber & operator -=(KNumber const &arg);
 
 
  //KNumber const toFloat(void) const;
  
  
  
  
 private:
  void simplifyRational(void);
  int const compare(KNumber const & arg2) const;
  
  _knumber *_num;
  static bool _float_output;
  static bool _fraction_input;
  static bool _splitoffinteger_output;
};
 
 
 
#endif // _KNUMBER_H