Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Transcribed Image Text:/* Printing values after update by calling function print by reference */
printByReference(&circleObject);
}
Task1.1: define the function
float getRandomNumber(int min, int max);
that returns a random number generated within the range min and max.
Task1.2: define the function
void printByValue(struct Circle cirobj);
that prints on the screen values of circle (xCoord, yCoord, and radius).
Task1.3: define the function
void setValue(float *target, float newValue);
that updates the given variable var with the new value. Use this to update the value of circle
object in the activity. For example, call it to update values of xCoord, yCoord, and radius.
Task1.4: define the function
void printByReference (struct Circle *cirobj);
that prints on the screen the values of circle object after using the function in Task1.3 above
but with call by reference (pointer of circle).
Transcribed Image Text:Activity 1
This program firstly initializes an object of struct Cirele with values and then updates those
using pointers. The program uses structure notation once and pointer notation another
afterwards.
#include<stdio.h>
#include<stdlib.>
#define MIN 1
#define MAX 30
struct Circle {
float xCoord;
float yCoord;
float radius;
};
/* prototypes */
float getRandomNumber (int min, int max);
void printByValue(struct Circle cirobj);
void setValue(float *target, float newValue);
void printByReference(struct Circle *cirObj);
int main(void) {
/* Declare a struct circle and name it circleobject */
struct Circle circleObject;
/* Fill circleObject's members with random numbers */
circleobject.xCoord = getRandomNumber(MIN, MAX);
circleobject.yCoord = getRandomNumber (MIN, MAX);
circleobject.radius = getRandomNumber (MIN, MAX);
/* Printing values of the circle by calling function print by value */
printByValue(circleobject);
/* update values of circle one by one */
setValue (&circleobject.xCoord, getRandomNumber(MIN, MAX));
setValue (&circleobject.yCoord, getRandomNumber (MIN, MAX));
setvalue (&circleobject.radius, getRandomNumber(MIN, MAX));
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