| 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 | |
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| 25 | void disconnect(); |
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| 26 | |
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| 27 | public: |
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| 28 | |
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| 29 | Rational( ); |
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| 30 | Rational( int ); |
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| 31 | Rational( const Rational& ); |
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| 32 | Rational( const Rational&,const Rational& ); |
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| 33 | Rational( int,int ); |
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| 34 | ~Rational( ); |
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| 35 | |
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| 36 | Rational& operator = ( int ); |
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| 37 | Rational& operator = ( char *s ); |
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| 38 | Rational& operator = ( const Rational& ); |
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| 39 | |
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| 40 | unsigned int length( ) const; |
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| 41 | Rational get_num( ); |
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| 42 | Rational get_den( ); |
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| 43 | int get_num_si( ); |
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| 44 | int get_den_si( ); |
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| 45 | operator int( ); |
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| 46 | |
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| 47 | Rational operator - ( ); |
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| 48 | Rational operator ~ ( ); |
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| 49 | Rational& operator += ( const Rational& ); |
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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 ++ ( ); |
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| 54 | Rational operator ++ ( int ); |
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| 55 | Rational& operator -- ( ); |
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| 56 | Rational operator -- ( int ); |
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| 57 | |
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| 58 | friend Rational operator - ( const Rational& ); |
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| 59 | |
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| 60 | friend bool operator < ( const Rational&,const Rational& ); |
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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 | |
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| 67 | #ifdef GMPRAT_PRINT |
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| 68 | friend ostream& operator<<( ostream&,const Rational& ); |
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| 69 | #endif |
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| 70 | |
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| 71 | friend int sgn ( const Rational& ); |
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| 72 | friend Rational abs ( const Rational& ); |
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| 73 | friend Rational pow ( const Rational&,int ); |
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| 74 | |
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| 75 | double complexity( ) const; |
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| 76 | |
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| 77 | friend Rational gcd ( const Rational&, const Rational& ); |
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| 78 | friend Rational lcm ( const Rational&, const Rational& ); |
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| 79 | friend Rational gcd ( Rational*, int ); |
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| 80 | friend Rational lcm ( Rational*, int ); |
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| 81 | }; |
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| 82 | |
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| 83 | Rational operator + ( const Rational&, const Rational& ); |
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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 | |
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| 88 | #endif /* GMPRAT_H */ |
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| 89 | |
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| 90 | // ---------------------------------------------------------------------------- |
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| 91 | // GMPrat.h |
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| 92 | // end of file |
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| 93 | // ---------------------------------------------------------------------------- |
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| 94 | |
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