Structurepointer.cpp

// C++ program to illustrate the

// structure pointer

#include <iostream>

#include <stdio.h>

using namespace std;

 

// Structure declaration for

// vertices

struct point {

    int x;

    int y;

};

 

// Structure declaration for

// rectangle

struct rect {

 

    // An object left is declared

    // with 'point'

    struct point left;

 

    // An object right is declared

    // with 'point'

    struct point right;

};

 

// Function to calculate area of

// the given rectangle

void areaOfRectangle(struct rect r)

{

    // Find the area of the rectangle

    // using variables of point

    // structure where variables of

    // point structure is accessed

    // by left and right objects

    int area

        = (r.right.x - r.left.x)

          * (r.right.y - r.left.y);

 

    // Print the area

    cout << area;

}

 

// Driver Code

int main()

{

    // Initialize variable 'r'

    // with vertices of rectangle

    struct rect r = { { 0, 0 }, { 1, 1 } };

 

    // Function Call

    areaOfRectangle(r);

 

    return 0;

}


Output: 

1