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Rationale Zahlen
//Title of this code #include <iostream> using namespace std; class Q{ double zahler; double nenner; double div; public: Q(double x=0, double y=1){ init(x, y); } void init(double z, double n){ zahler=z; if(n!=0) nenner=n; else nenner=1; } double wert(){ if(zahler==0 && nenner==0){ //cout << "Double Wert ist: 0" << endl; }else{ div=zahler/nenner; //cout << "Double Wert ist: " << div << endl; return div; } } int ggt(int a, int b){ if(a<b){ int temp=a; a=b; b=temp; } if(b==0) return a; else return ggt(b, a%b); } void kuerzen(double zKuerzen, double nKuerzen){ zahler=zKuerzen/ggt(zKuerzen,nKuerzen); nenner=nKuerzen/ggt(zKuerzen,nKuerzen); } void print(){ kuerzen(zahler,nenner); cout << "Bruchform der Zahl ist: " << zahler << "/" << nenner << endl; } Q operator+(Q amount); friend std::ostream& operator<<(std::ostream& stream, Q p); }; Q Q::operator+(Q amount){ return Q(this->zahler+amount.wert()); } std::ostream& operator<<(std::ostream& stream, Q p) { stream << p.wert() << std::endl; return stream; } int main() { Q a; Q b=10; Q c(3,9); a.print(); b.print(); c.print(); a.wert(); b.wert(); c.wert(); Q d=a+b; cout << d; return 0; }
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