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// Program 4.4.1 #include using namespace std; int main () {  int var = 20; // actual variable declaration.  int *ip; // pointer variable  ip = &var; // store address of var in pointer variable  cout << "Value of var variable: "; // print the variable value  cout << var << endl<

// Program 4.4.1 #include using namespace std; int main () {  int var = 20; // actual variable declaration.  int *ip; // pointer variable  ip = &var; // store address of var in pointer variable  cout << "Value of var variable: "; // print the variable value  cout << var << endl<

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:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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// Program 4.4.1
#include <iostream>
using namespace std;
int main ()
{
 int var = 20; // actual variable declaration.
 int *ip; // pointer variable
 ip = &var; // store address of var in pointer variable
 cout << "Value of var variable: "; // print the variable value
 cout << var << endl<<endl;
 cout << "Address stored in ip variable: "; // print the address stored in ip pointer variable
 cout << ip << endl<<endl;
 cout << "Value of *ip variable: "; // access the value at the address available in pointer
 cout << *ip << endl;
 return 0;
}

 

TASK

1. Explain in details what the program does? 

2.  What is the output. 

Pointer 1 // Program 4.4.1 #include <iostream> using namespace std; int main () int var = 20; int *ip; ip = &var; // actual variable declaration. // pointer variable // store address of var in pointer variable // print the variable value cout << "Value of var variable: "; cout « var <« endlk<endl; cout « "Address stored in ip variable: "; // print the address stored in ip pointer variable cout « ip <« endkcendl; cout << "Value of *ip variable: "; cout <« *ip «endl; // occess the value at the address available in pointer return 0; }
Transcribed Image Text:Pointer 1 // Program 4.4.1 #include <iostream> using namespace std; int main () int var = 20; int *ip; ip = &var; // actual variable declaration. // pointer variable // store address of var in pointer variable // print the variable value cout << "Value of var variable: "; cout « var <« endlk<endl; cout « "Address stored in ip variable: "; // print the address stored in ip pointer variable cout « ip <« endkcendl; cout << "Value of *ip variable: "; cout <« *ip «endl; // occess the value at the address available in pointer return 0; }
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