// Chapter 3 - Program 1
#include <iostream.h>

main()
{
int   *pointer_int;//declaring an integer pointer
float *pointer_float;//declaring a float pointer
int   pig = 7, dog = 27;
float x = 1.2345, y = 32.14;
void *general;//a pointer to point--can be assigned any point.

pointer_int = &pig;//assigns the address of pig to pointer_int.
*pointer_int += dog;//adds the value of pig, (pointed to by *pointer_int),
// to value of dog, and stores it in the address of pig, since it is pointed to
//with *pointer_int.
//next line uses cout to print the new value of pig
cout << "Pig now has the value of " << *pointer_int << "\n";

general = pointer_int;//now general points to pointer_int
//address), to general.

pointer_float = &x;//assigns address of x to pointer_float
y += 5 * (*pointer_float); //does calculation of amount stored in y to the value
//of 5 times the value of x, since *pointer_float is pointing to x.
cout << "y now has the value of " << y << "\n";
general = pointer_float;//now points to pointer_float!

const char *name1 = "John";    // Value cannot be changed
char *const name2 = "John";    // Pointer cannot be changed
}




// Result of execution
//
// Pig now has the value of 34
// y now has the value of 38.3125