kcalc

knumber_priv.h

00001 /* This file is part of the KDE libraries
00002     Copyright (C) 2005 Klaus Niederkrueger <kniederk@math.uni-koeln.de>
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public License
00015     along with this library; see the file COPYING.LIB.  If not, write to
00016     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017     Boston, MA 02110-1301, USA.
00018 */
00019 #ifndef _KNUMBER_PRIV_H
00020 #define _KNUMBER_PRIV_H
00021 
00022 
00023 #include <cstdio>
00024 #include <gmp.h>
00025 
00026 // work-around for pre-C99-libs
00027 #ifndef INFINITY
00028 #define INFINITY  HUGE_VAL
00029 #endif
00030 // this is really ugly
00031 #ifndef NAN
00032 #define NAN (atof("nan"))
00033 #endif
00034 
00035 class _knumber
00036 {
00037  public:
00038   enum NumType {SpecialType, IntegerType, FractionType, FloatType};
00039   enum ErrorType {UndefinedNumber, Infinity, MinusInfinity};
00040 
00041   _knumber() {}
00042 
00043   virtual ~_knumber() {}
00044 
00045   virtual void copy(_knumber const & num) = 0;
00046 
00047   virtual NumType type(void) const = 0;
00048 
00049   virtual QString const ascii(int prec = -1) const = 0;
00050 
00051   virtual _knumber * abs(void) const = 0;
00052   virtual _knumber * intPart(void) const = 0;
00053   virtual int sign(void) const = 0;
00054   virtual _knumber * sqrt(void) const = 0;
00055   virtual _knumber * cbrt(void) const = 0;
00056   virtual _knumber * change_sign(void) const = 0;
00057   virtual _knumber * reciprocal(void) const = 0;
00058   virtual _knumber * add(_knumber const & arg2) const = 0;
00059   virtual _knumber * multiply(_knumber const & arg2) const = 0;
00060   _knumber * divide(_knumber const & arg2) const;
00061 
00062   virtual _knumber * power(_knumber const & exponent) const = 0;
00063 
00064   virtual int compare(_knumber const &arg2) const = 0;
00065 
00066   virtual operator long int(void) const = 0;
00067   virtual operator unsigned long int(void) const = 0;
00068   virtual operator double (void) const = 0;
00069 };
00070 
00071 
00072 
00073 class _knumerror : public _knumber
00074 {
00075  public:
00076   _knumerror(ErrorType error = UndefinedNumber)
00077     : _error(error) { }
00078   
00079   _knumerror(_knumber const & num);
00080 
00081   _knumerror(const QString & num);
00082 
00083   //virtual ~_knumerror() { }
00084 
00085   _knumerror const & operator = (_knumerror const & num);
00086 
00087   virtual void copy(_knumber const & num)
00088   {
00089     _error = dynamic_cast<_knumerror const &>(num)._error;
00090   }
00091 
00092   virtual NumType type(void) const {return SpecialType;}
00093 
00094   virtual QString const ascii(int prec = -1) const;
00095 
00096   virtual _knumber * abs(void) const;
00097   virtual _knumber * intPart(void) const;
00098   virtual int sign(void) const;
00099   virtual _knumber * cbrt(void) const;
00100   virtual _knumber * sqrt(void) const;
00101   virtual _knumber * change_sign(void) const;
00102   virtual _knumber * reciprocal(void) const;
00103   virtual _knumber * add(_knumber const & arg2) const;
00104   virtual _knumber * multiply(_knumber const & arg2) const;
00105 
00106   virtual _knumber * power(_knumber const & exponent) const;
00107 
00108   virtual int compare(_knumber const &arg2) const;
00109 
00110   virtual operator long int(void) const;
00111   virtual operator unsigned long int(void) const;
00112   virtual operator double (void) const;
00113 
00114  private:
00115 
00116   ErrorType _error;
00117 
00118   friend class _knuminteger;
00119   friend class _knumfraction;
00120   friend class _knumfloat;
00121 };
00122 
00123 
00124 
00125 class _knuminteger : public _knumber
00126 {
00127  public:
00128   _knuminteger(qint32 num = 0)
00129   {
00130     mpz_init_set_si(_mpz, static_cast<signed long int>(num));
00131   }
00132 
00133   _knuminteger(quint32 num)
00134   {
00135     mpz_init_set_ui(_mpz, static_cast<unsigned long int>(num));
00136   }
00137   
00138   _knuminteger(quint64 num);
00139 
00140   _knuminteger(_knumber const & num);
00141 
00142   _knuminteger(const QString & num);
00143 
00144   virtual ~_knuminteger()
00145   {
00146     mpz_clear(_mpz);
00147   }
00148 
00149   _knuminteger const & operator = (_knuminteger const & num);
00150 
00151   virtual void copy(_knumber const & num)
00152   {
00153     mpz_set(_mpz, dynamic_cast<_knuminteger const &>(num)._mpz);
00154   }
00155 
00156   virtual NumType type(void) const {return IntegerType;}
00157 
00158   virtual QString const ascii(int prec = -1) const;
00159 
00160   virtual _knumber * abs(void) const;
00161   virtual _knumber * intPart(void) const;
00162   virtual int sign(void) const;
00163   virtual _knumber * cbrt(void) const;
00164   virtual _knumber * sqrt(void) const;
00165   virtual _knumber * change_sign(void) const;
00166   virtual _knumber * reciprocal(void) const;
00167   virtual _knumber * add(_knumber const & arg2) const;
00168   virtual _knumber * multiply(_knumber const & arg2) const;
00169 
00170   virtual int compare(_knumber const &arg2) const;
00171 
00172   virtual _knumber * power(_knumber const & exponent) const;
00173 
00174   virtual operator long int (void) const;
00175   virtual operator unsigned long int (void) const;
00176   virtual operator double (void) const;
00177 
00178   _knuminteger * intAnd(_knuminteger const &arg2) const;
00179   _knuminteger * intOr(_knuminteger const &arg2) const;
00180   _knumber * mod(_knuminteger const &arg2) const;
00181   _knumber * shift(_knuminteger const &arg2) const;
00182   
00183  private:
00184   mpz_t _mpz;
00185 
00186   friend class _knumfraction;
00187   friend class _knumfloat;
00188 };
00189 
00190 
00191 
00192 class _knumfraction : public _knumber
00193 {
00194  public:
00195   
00196   explicit _knumfraction(signed long int nom = 0, signed long int denom = 1)
00197   {
00198     mpq_init(_mpq);
00199     mpq_set_si(_mpq, nom, denom);
00200     mpq_canonicalize(_mpq);
00201   }
00202 
00203   _knumfraction(_knumber const & num);
00204   
00205   _knumfraction(QString const & num);
00206 
00207   virtual ~_knumfraction()
00208   {
00209     mpq_clear(_mpq);
00210   }
00211   
00212   virtual void copy(_knumber const & num)
00213   {
00214     mpq_set(_mpq, dynamic_cast<_knumfraction const &>(num)._mpq);
00215   }
00216 
00217   virtual NumType type(void) const {return FractionType;}
00218 
00219   virtual QString const ascii(int prec = -1) const;
00220   
00221   bool isInteger(void) const;
00222 
00223   virtual _knumber * abs(void) const;
00224   virtual _knumber * intPart(void) const;
00225   virtual int sign(void) const;
00226   virtual _knumber * cbrt(void) const;
00227   virtual _knumber * sqrt(void) const;
00228   virtual _knumber * change_sign(void) const;
00229   virtual _knumber * reciprocal(void) const;
00230   virtual _knumber * add(_knumber const & arg2) const;
00231   virtual _knumber * multiply(_knumber const & arg2) const;
00232 
00233   virtual _knumber * power(_knumber const & exponent) const;
00234   
00235   virtual int compare(_knumber const &arg2) const;
00236 
00237   virtual operator long int (void) const;
00238   virtual operator unsigned long int (void) const;
00239   virtual operator double (void) const;
00240 
00241  private:
00242   mpq_t _mpq;
00243 
00244   friend class _knuminteger;
00245   friend class _knumfloat;
00246 };
00247 
00248 class _knumfloat : public _knumber
00249 {
00250  public:
00251   _knumfloat(double num = 1.0)
00252   {
00253     mpf_init(_mpf);
00254     mpf_set_d(_mpf, num);
00255   }
00256   
00257   _knumfloat(_knumber const & num);
00258 
00259   _knumfloat(QString const & num);
00260   
00261   virtual ~_knumfloat()
00262   {
00263     mpf_clear(_mpf);
00264   }
00265 
00266   virtual void copy(_knumber const & num)
00267   {
00268     mpf_set(_mpf, dynamic_cast<_knumfloat const &>(num)._mpf);
00269   }
00270 
00271   virtual NumType type(void) const {return FloatType;}
00272 
00273   virtual QString const ascii(int prec = -1) const;
00274 
00275   virtual _knumber * abs(void) const;
00276   virtual _knumber * intPart(void) const;
00277   virtual int sign(void) const;
00278   virtual _knumber * cbrt(void) const;
00279   virtual _knumber * sqrt(void) const;
00280   virtual _knumber * change_sign(void) const;
00281   virtual _knumber * reciprocal(void) const;
00282   virtual _knumber * add(_knumber const & arg2) const;
00283   virtual _knumber * multiply(_knumber const & arg2) const;
00284   virtual _knumber * divide(_knumber const & arg2) const;
00285 
00286   virtual _knumber * power(_knumber const & exponent) const;
00287 
00288   virtual int compare(_knumber const &arg2) const;
00289 
00290   virtual operator long int (void) const;
00291   virtual operator unsigned long int (void) const;
00292   virtual operator double (void) const;
00293 
00294  private:
00295     mpf_t _mpf;
00296 
00297   friend class _knuminteger;
00298   friend class _knumfraction;
00299 };
00300 
00301 
00302 #endif //  _KNUMBER_PRIV_H
kcalc

knumber_priv.h

kcalc

kdeutils
