01.Function Overloading.BAK

//Program to illustrate the concept of function overloading

#include<iostream.h>
#include<conio.h>

void area(int l,int b);
void area(int l,int b)
  {
    int r;
    r=l*b;
    cout<<"area of triangle: "<<r;

  }

void area(int a);
void area(int a)
  {
    int p;
    p=a*a;
    cout<<"area of square: "<<p;

  }

void area(int x,float y);
void area(int x,float y)
  {
    float s;
    s=0.5*x*y;
    cout<<"area of triangle: "<<s;
  }

void area(float r);
void area(float r)
  {
    float c;
    c=3.14*r*r;
    cout<<"area of circle: "<<c;
  }

void main()
{
  clrscr();
  int m,l,b,a,x;
  float y,r;
 do{
     cout<<"\n\n AREA CALCULATOR ";
     cout<<"\n\t 1. Area of Rectangle";
     cout<<"\n\t 2. Area of Square";
     cout<<"\n\t 3. Area of Triangle";
     cout<<"\n\t 4. Area of Circle"<<endl;
     cout<<"\n Enter your choice: ";
     cin>>m;
     cout<<endl;
 switch(m)
 {
  case 1: cout<<"Enter the dimensions of the rectangle: ";
	  cin>>l>>b;
	  area(l,b);
		  break;
  case 2: cout<<"Enter the side of Square: ";
	  cin>>a;
	  area(a);
		  break;
  case 3: cout<<"Enter the dimensions of triangle: ";
	  cin>>x>>y;
	  area(x,y);
		  break;
  case 4: cout<<"Enter the radius of the circle: ";
	  cin>>r;
	  area(r);
		  break;
		  }

	  }while(m!=5);

	  }