difference between single star and multi star in pointer code example
Example 1: pionter in c++
#include <iostream>
using namespace std;
int main(){
int *p, var=101;
p = &var;
cout<<"Address of var: "<<&var<<endl;
cout<<"Address of var: "<<p<<endl;
cout<<"Address of p: "<<&p<<endl;
cout<<"Value of var: "<<*p;
return 0;
}
Example 2: double pointers C++
#include <stdio.h>
int main(void)
{
int value = 100;
int *value_ptr = &value;
int **value_double_ptr = &value_ptr;
printf("Value: %d\n", value);
printf("Pointer to value: %d\n", *value_ptr);
printf("Double pointer to value: %d\n", **value_double_ptr);
}