What is the use of overloading a function?

class add{int x; public: add(int)}; Write an outline definition for the constructor.

class sale ( int cost, discount ;public: sale(sale &); Write a non inline definition for constructor specified;

Discuss the benefits of constructor overloading?

What is operator overloading? Give some example of operators which can be overloaded.

Answer the questions based on the following program
#include < iostream >
#include < string.h >
using namespace std;
class comp {
public:
char s[10];
void getstring(char str[10])
{
strcpy(s,str);
}
void operator==(comp);
};
void comp::operator==(comp ob)
{
if(strcmp(s,ob.s)==0)
cout << "\nStrings are Equal";
else
cout << "\nStrings are not Equal";
}
int main()
{
comp ob, ob1;
char string1[10], string2[10];
cout << "Enter First String:";
cin>>string1;
ob.getstring(string1);
cout << "\nEnter Second String:";
cin >> string2;
ob1.getstring(string2);
ob==ob1;
return 0;
}
(i) Mention the objects which will have the scope till the end of the program.
(ii) Name the object which gets destroyed in between the program
(iii) Name the operator which is over loaded and write the statement that invokes it.
(iv) Write out the prototype of the overloaded member function
(v) What types of operands are used for the overloaded operator?
(vi) Which constructor will get executed? Write the output of the program.

What are the rules for operator overloading?

#include< iostream >
using namespace std;
class Point {
private:
int x, y;
public:
point(int x1,int y1)
{
x=x1;y=y1;
}
void operator+(Point & pt3);
void showO {cout << "x=" << x << " ,y=" << y;}
};
void Point::operator+(point & pt3)
{
x + =pt3.x;
y+=pt3.y;
}
int main ()
{
point pt1(3,2),pt2(5,4);
pt1+pt2;
pt1.show ();
return 0;
}
What is the output for the above program?

Which of the following operator is by default overloaded by the compiler?

Which of the following is invalid prototype for function overloading

Which of the following reduces the number of comparisons in a program?