Known type of a rational number Zrf_Ratio, the achievement of the following form of operator overloading: friend std:: ostream & operator < < (std:: ostream & , const zrf_Ratio & ) friend std:: istream & operator> > (std:: istream & , zrf_Ratio & ) friend bool operator == (const zrf_Ratio & , const zrf_Ratio & ) friend bool operator < (const zrf_Ratio & , const zrf_Ratio & )

8_作业8.doc

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