1 | // ---------------------------------------------------------------------------- |
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2 | // GMPrat.h |
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3 | // begin of file |
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4 | // originally written by Gerd Sussner, sussner@mi.uni-erlangen.de |
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5 | // copied by Stephan Endrass, endrass@mathematik.uni-mainz.de |
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6 | // 23.7.99 |
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7 | // ---------------------------------------------------------------------------- |
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8 | |
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9 | #ifndef GMPRAT_H |
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10 | #define GMPRAT_H |
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11 | |
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12 | #include <coeffs/si_gmp.h> |
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13 | |
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14 | class Rational |
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15 | { |
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16 | struct rep |
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17 | { |
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18 | mpq_t rat; |
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19 | int n; |
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20 | rep() { n=1; } |
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21 | }; |
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22 | |
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23 | rep *p; |
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24 | static Rational save; |
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25 | |
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26 | void disconnect(); |
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27 | |
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28 | public: |
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29 | |
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30 | Rational( ); |
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31 | Rational( int ); |
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32 | Rational( const Rational& ); |
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33 | Rational( const Rational&,const Rational& ); |
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34 | Rational( int,int ); |
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35 | ~Rational( ); |
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36 | |
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37 | Rational& operator = ( int ); |
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38 | Rational& operator = ( char *s ); |
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39 | Rational& operator = ( const Rational& ); |
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40 | |
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41 | unsigned int length( ) const; |
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42 | Rational get_num( ); |
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43 | Rational get_den( ); |
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44 | int get_num_si( ); |
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45 | int get_den_si( ); |
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46 | operator int( ); |
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47 | |
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48 | Rational operator - ( ); |
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49 | Rational operator ~ ( ); |
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50 | Rational& operator += ( const Rational& ); |
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51 | Rational& operator -= ( const Rational& ); |
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52 | Rational& operator *= ( const Rational& ); |
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53 | Rational& operator /= ( const Rational& ); |
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54 | Rational& operator ++ ( ); |
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55 | Rational operator ++ ( int ); |
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56 | Rational& operator -- ( ); |
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57 | Rational operator -- ( int ); |
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58 | |
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59 | friend Rational operator - ( const Rational& ); |
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60 | |
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61 | friend bool operator < ( const Rational&,const Rational& ); |
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62 | friend bool operator <= ( const Rational&,const Rational& ); |
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63 | friend bool operator > ( const Rational&,const Rational& ); |
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64 | friend bool operator >= ( const Rational&,const Rational& ); |
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65 | friend bool operator == ( const Rational&,const Rational& ); |
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66 | friend bool operator != ( const Rational&,const Rational& ); |
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67 | |
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68 | #ifdef GMPRAT_PRINT |
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69 | friend ostream& operator<<( ostream&,const Rational& ); |
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70 | #endif |
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71 | |
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72 | friend int sgn ( const Rational& ); |
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73 | friend Rational abs ( const Rational& ); |
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74 | friend Rational pow ( const Rational&,int ); |
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75 | |
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76 | double complexity( ) const; |
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77 | |
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78 | friend Rational gcd ( const Rational&, const Rational& ); |
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79 | friend Rational lcm ( const Rational&, const Rational& ); |
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80 | friend Rational gcd ( Rational*, int ); |
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81 | friend Rational lcm ( Rational*, int ); |
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82 | }; |
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83 | |
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84 | Rational operator + ( const Rational&, const Rational& ); |
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85 | Rational operator - ( const Rational&, const Rational& ); |
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86 | Rational operator * ( const Rational&, const Rational& ); |
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87 | Rational operator / ( const Rational&, const Rational& ); |
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88 | |
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89 | #endif /* GMPRAT_H */ |
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90 | |
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91 | // ---------------------------------------------------------------------------- |
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92 | // GMPrat.h |
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93 | // end of file |
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94 | // ---------------------------------------------------------------------------- |
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95 | |
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