Rules of Operator Overloading

• It is a function defined to an operator with new term or meaning.
• It cannot produce new operator.
• It cannot modified the meaning of the existing operator.
• It can generate new functionality for the existing operators.
• It helps to produce mathematical expression to replace arguments in function.
• Binary and Unary operator overloading.
• The following operators cannot be overloaded class member access (., .*), conditional (?:)sizeof, and scope (::).

Regular Function in a class

class SI

{float i,p,n,r,a;

public:

SI(){};

SI(int gp,int gn, int gr);

void putdata(void);

SI sum(SI, SI);

};

SI SI::sum(SI i1, SI i2)

{SI i3; i3.p=i1.p+i2.p; i3.i=i1.i+i2.i; i3.a=i1.a+i2.a; return i3;

}

void SI::putdata(void)

{cout<<"Principle is: "<

}

SI::SI(int gp,int gn, int gr){

p=gp;n=gn;r=gr; i=(p*n*r)/100; a=p+i;

}

int main()

{           SI i1,i2,i3;

i1=SI(1000,2,10); i1.putdata(); cout<

return 0;

}