Question

1. Look at the following code and comment each line about how it works with pointer.

int i = 33;

double d = 12.88;

int * iPtr = &i;   

double * dPtr = &d; //

iPtr = &d;   //

dPtr = &i;   //

iPtr = i;    //

int j = 99;

iPtr = &j; //

Answer 1

int i = 33; // An int variable with a value

double d = 12.88;  // An double variable with a value

int * iPtr = &i;   // Declared a pointer variable called iPtr pointing to an int (or int pointer) and Assign the address of the variable number to pointer iPtr

double * dPtr = &d; // Declared a pointer variable called dPtr pointing to an double (or double pointer)

// Assign the address of the variable number to pointer dPtr

iPtr = &d;   //Assign the address of the variable number to pointer iPtr

dPtr = &i; //Assign the address of the variable number to pointer dPtr

iPtr = i;    //Assign variable number to pointer iPtr

int j = 99;//declared j int variable

iPtr = &j; // assign the address of variable to pointer iPtr