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/Pointers in CPP C++/CPP Tutorial./

In this pointers cpp program, we have assigned as value of mypointer a reference to firstvalue using the reference operator (&). And then we have assigned the value 5 to the memory location pointed by mypointer, that because at this moment is pointing to the memory location of firstvalue, this in fact modifies the value of firstvalue.

#include <iostream.h>
using namespace std;

int main ()
{
int firstvalue, secondvalue;
int * mypointer;

// www.freecprograms.com pointers in cpp

mypointer = &firstvalue;
*mypointer = 5;
mypointer = &secondvalue;
*mypointer = 10;
cout << "firstvalue is " << firstvalue << endl;
cout << "secondvalue is " << secondvalue << endl;
return 0;
}

Output

firstvalue is 5

secondvalue is 10

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/*Pointers in CPP C++/CPP Tutorial.*/

/Pointers in CPP C++/CPP Tutorial./