c++运算符重载经典举例

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1、c++运算符重载经典举例算法运算符重载//AclassComplex,anditsarithmeticoperations.#include#include#includeclassComplex{public:    Complex(floatr=0,floati=0):_r(r),_i(i)  {  }    voidprint()const;  friendconstComplexoperator+(constComplex&x,constComplex&y);  friendconstComplexoper

2、ator-(constComplex&x,constComplex&y);  friendconstComplexoperator*(constComplex&x,constComplex&y);  friendconstComplexoperator/(constComplex&x,constComplex&y);private:  float_r;  float_i;};voidComplex::print()const{    cout<<"_r="<<_r<

3、tor+(constComplex&x,constComplex&y){    returnComplex(x._r+y._r,x._i+y._i);}inlineconstComplexoperator-(constComplex&x,constComplex&y){    returnComplex(x._r-y._r,x._i-y._i);}inlineconstComplexoperator*(constComplex&x,constComplex&y){    returnComplex(x._r*y._r-x._i*y._i,x._r*y._i+x._i*y._r

4、);}constComplexoperator/(constComplex&x,constComplex&y){  if(y._r==0&&y._i==0)  {    exit(1);  }  floatden=y._r*y._r+y._i*y._i;    ComplexaComplex((x._r*y._r+x._i*y._i)/den,          (x._i*y._r-x._r*y._i)/den);  //returnComplex((x._r*y._r+x._i*y._i)/den,  //        (x._i*y._r-x._r*y._i)/den

5、);    returnaComplex;}intmain(){  Complexx(2,3),y(-1,3);  cout<<"xis";x.print();  cout<<"yis";y.print();  cout<<"x+yis";  (x+y).print();    cout<<"x-yis";  (x-y).print();    cout<<"x*yis";  (x*y).print();    cout<<"x/yis";  (x/y).print();    return0;} 引用 报告回复sdb新手上路UID1050精华0积分0帖子24阅读权限10注册

6、2007-4-2状态离线#2使用道具  发表于2007-7-1114:52 资料 个人空间 短消息 加为好友 重载为成员函数//AclassComplex,anditsarithmeticoperations.#include#include#includeclassComplex{public:    Complex(floatr=0,floati=0):_r(r),_i(i)  {  }    voidprint()const;  constComplexoperator+(constComplex&y);  

7、constComplexoperator-(constComplex&y);  constComplexoperator*(constComplex&y);  constComplexoperator/(constComplex&y);private:  float_r;  float_i;};voidComplex::print()const{    cout<<"_r="<<_r<