pointers in c++ programming language

 Pointer refers to variable that hold the address of another variable or memory location

Pointer hold the address of same type

Char can hold char int can store int address

& used to store address

code:

#include <iostream>

using namespace std;

int main(){

   int *p;

   int a;

   a=2000;

   p = &a;

   cout<<"Address of a: "<<&a<<endl;

   cout<<"Address of a: "<<p<<endl;

   cout<<"Address of p: "<<&p<<endl;

   cout<<"Value of a: "<<*p;

   return 0;

}

output:

Address of a: 0x78fe14
Address of a: 0x78fe14
Address of p: 0x78fe18
Value of a: 2000

explaination:

Adress of a and p will be the same because we refers the value of a to &p and &p is showing in third line it store nothing but address of a and value is stored to *p;

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