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Accessor and Mutator Functions

Accessor and Mutator Functions. Private Access Woes. // fraction.h ... class Fraction { ... private: int m_Numerator ; int m_Denominator ; };. //fraction.cpp ... Fraction mult_fracs (const Fraction & lhs, const Fraction & rhs ) { Fraction temp;

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Accessor and Mutator Functions

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  1. Accessor and Mutator Functions

  2. Private Access Woes //fraction.h ... class Fraction { ... private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... Fractionmult_fracs(const Fraction & lhs, const Fraction & rhs) { Fraction temp; temp.m_Numerator = lhs.m_Numerator * rhs.m_Numerator; ...

  3. Private Access Woes //fraction.h ... class Fraction { ... private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... Fractionmult_fracs(const Fraction & lhs, const Fraction & rhs) { Fraction temp; • temp.m_Numerator= lhs.m_Numerator * rhs.m_Numerator; ...

  4. Private Access Woes //fraction.h ... class Fraction { ... private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... Fractionmult_fracs(const Fraction & lhs, const Fraction & rhs) { Fraction temp; • temp.m_Numerator = lhs.m_Numerator * rhs.m_Numerator; ...

  5. Accessor and Mutator Functions //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum(); intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; };

  6. Accessor and Mutator Functions //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum(); intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... int Fraction::getNum() { return m_Numerator; }

  7. Accessor and Mutator Functions //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum(); intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... int Fraction::getDen() { return m_Denominator; }

  8. Accessor and Mutator Functions //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum(); intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... void Fraction::setNumer(const intnumer) { m_Numerator = numer; return; }

  9. Accessor and Mutator Functions //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum(); intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... bool Fraction::setDenom(const intdenom) { bool set = false; if(denom != 0) { set = true; m_Denominator = denom; } return set; }

  10. Inlining //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum(); intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... int Fraction::getNum() { return m_Numerator; }

  11. Inlining //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum(); intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... int Fraction::getNum() { return m_Numerator; }

  12. Inlining //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum() { } intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... int Fraction::getNum() { return m_Numerator; }

  13. Inlining //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum() { } intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... int Fraction::getNum() { return m_Numerator; }

  14. Inlining //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum() { return m_Numerator; } intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... int Fraction::getNum() { }

  15. Inlining //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum() { return m_Numerator; } intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ...

  16. Inlining //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum() { return m_Numerator; } intgetDen(); void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... • int Fraction::getDen() • { • return m_Denominator; • }

  17. Inlining //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum() { return m_Numerator; } intgetDen() { return m_Denominator; } void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ... • int Fraction::getDen() • { • return m_Denominator; • }

  18. Inlining //fraction.h ... class Fraction { public: void readin(); void print(); Fraction reciprocal(); void unreduce(const int m); intgetNum() { return m_Numerator; } intgetDen() { return m_Denominator; } void setNumer(const intnumer); boolsetDenom(const intdenom); private: intm_Numerator; intm_Denominator; }; //fraction.cpp ...

  19. Private Access Woes • // in the Fractions.cpp file • Fraction mult_fracs(const Fraction & lhs, const Fraction & rhs) • { •     Fraction temp; • temp.setNumer(lhs.getNumer() * rhs.getNumer()); •     if (! (temp.setDenom(lhs.getDenom() * rhs.getDenom())) •     { • cout<<"ERROR: denominator is 0 "<<endl; •         exit(2); •     } •     return temp; • }

  20. Private Access Woes • // in the Fractions.cpp file • Fraction mult_fracs(const Fraction & lhs, const Fraction & rhs) • { •     Fraction temp; • temp.setNumer(lhs.getNumer() * rhs.getNumer()); •     if (! (temp.setDenom(lhs.getDenom() * rhs.getDenom())) •     { • cout<<"ERROR: denominator is 0 "<<endl; •         exit(2); •     } •     return temp; • }

  21. Private Access Woes • // in the Fractions.cpp file • Fraction mult_fracs(const Fraction & lhs, const Fraction & rhs) • { •     Fraction temp; • temp.setNumer(lhs.getNumer() * rhs.getNumer()); •     if (! (temp.setDenom(lhs.getDenom() * rhs.getDenom())) •     { • cout<<"ERROR: denominator is 0 "<<endl; •         exit(2); •     } •     return temp; • }

  22. Private Access Woes • // in the Fractions.cpp file • Fraction mult_fracs(const Fraction & lhs, const Fraction & rhs) • { •     Fraction temp; • temp.setNumer(lhs.getNumer() * rhs.getNumer()); •     if (! (temp.setDenom(lhs.getDenom() * rhs.getDenom())) •     { • cout<<"ERROR: denominator is 0 "<<endl; •         exit(2); •     } •     return temp; • }

  23. Private Access Woes • // in the Fractions.cpp file • Fraction mult_fracs(const Fraction & lhs, const Fraction & rhs) • { •     Fraction temp; • temp.setNumer(lhs.getNumer() * rhs.getNumer()); •     if (! (temp.setDenom(lhs.getDenom() * rhs.getDenom())) •     { • cout<<"ERROR: denominator is 0 "<<endl; •         exit(2); •     } •     return temp; • }

  24. End of Session

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