kcalc

knumber.h

00001 // -*- c-basic-offset: 2 -*-
00002 /* This file is part of the KDE libraries
00003     Copyright (C) 2005 Klaus Niederkrueger <kniederk@math.uni-koeln.de>
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public License
00016     along with this library; see the file COPYING.LIB.  If not, write to
00017     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00018     Boston, MA 02110-1301, USA.
00019 */
00020 #ifndef _KNUMBER_H
00021 #define _KNUMBER_H
00022 
00023 #include <kdemacros.h>
00024 
00025 #include "knumber_priv.h"
00026 
00027 class QString;
00028 
00029 class _knumber;
00030 
00065 class KDE_EXPORT KNumber
00066 {
00067  public:
00068   static KNumber const Zero;
00069   static KNumber const One;
00070   static KNumber const MinusOne;
00071   static KNumber const Pi;
00072   static KNumber const Euler;
00073   static KNumber const NotDefined;
00074 
00089   enum NumType {SpecialType, IntegerType, FractionType, FloatType};
00090 
00108   enum ErrorType {UndefinedNumber, Infinity, MinusInfinity};
00109 
00110   KNumber(qint32 num = 0);
00111   KNumber(quint32 num);  
00112   KNumber(quint64 num);
00113 
00114   KNumber(double num);
00115 
00116   KNumber(KNumber const & num);
00117   
00118   KNumber(QString const & num);
00119   
00120   virtual ~KNumber();
00121   
00122   KNumber const & operator=(KNumber const & num);
00123 
00127   NumType type(void) const;
00128 
00139   static void setDefaultFloatOutput(bool flag);
00140 
00148   static void setDefaultFractionalInput(bool flag);
00149 
00155   static void setDefaultFloatPrecision(unsigned int prec);
00156 
00165   static void setSplitoffIntegerForFractionOutput(bool flag);
00166 
00179   QString const toQString(int width = -1, int prec = -1) const;
00180   
00188   KNumber const abs(void) const;
00189 
00201   KNumber const sqrt(void) const;
00202 
00216   KNumber const cbrt(void) const;
00217 
00225   KNumber const integerPart(void) const;
00226 
00227   KNumber const power(KNumber const &exp) const;
00228 
00229   KNumber const operator+(KNumber const & arg2) const;
00230   KNumber const operator -(void) const;
00231   KNumber const operator-(KNumber const & arg2) const;
00232   KNumber const operator*(KNumber const & arg2) const;
00233   KNumber const operator/(KNumber const & arg2) const;
00234   KNumber const operator%(KNumber const & arg2) const;
00235 
00236   KNumber const operator&(KNumber const & arg2) const;
00237   KNumber const operator|(KNumber const & arg2) const;
00238   KNumber const operator<<(KNumber const & arg2) const;
00239   KNumber const operator>>(KNumber const & arg2) const;
00240 
00241   operator bool(void) const;
00242   operator qint32(void) const;
00243   operator quint32(void) const;
00244   operator quint64(void) const;
00245   operator double(void) const;
00246 
00247   bool const operator==(KNumber const & arg2) const
00248   { return (compare(arg2) == 0); }
00249 
00250   bool const operator!=(KNumber const & arg2) const
00251   { return (compare(arg2) != 0); }
00252 
00253   bool const operator>(KNumber const & arg2) const
00254   { return (compare(arg2) > 0); }
00255 
00256   bool const operator<(KNumber const & arg2) const
00257   { return (compare(arg2) < 0); }
00258 
00259   bool const operator>=(KNumber const & arg2) const
00260   { return (compare(arg2) >= 0); }
00261 
00262   bool const operator<=(KNumber const & arg2) const
00263   { return (compare(arg2) <= 0); }
00264 
00265   KNumber & operator +=(KNumber const &arg);
00266   KNumber & operator -=(KNumber const &arg);
00267 
00268 
00269   //KNumber const toFloat(void) const;
00270 
00271  private:
00272   void simplifyRational(void);
00273   int const compare(KNumber const & arg2) const;
00274   
00275   _knumber *_num;
00276   static bool _float_output;
00277   static bool _fraction_input;
00278   static bool _splitoffinteger_output;
00279 };
00280 
00281 
00282 
00283 #endif // _KNUMBER_H
kcalc

knumber.h

kcalc

kdeutils
