/*
 * stack.c
 *
 * Computer Science 50, Fall 2011
 * section4
 *
 * Working with variables created in the stack.
 */

#include <stdio.h>

// functions prototypes
int* f();
int* g();

int
main(void)
{
    // creates a pointer to a variable created in f()
    int* x = f();

    printf("x has the value: %d\n", *x);

    // creates a pointer to a variable created in g()    
    int* y = g();

    printf("x (still) has the value %d\n", *x);
    printf("y has the value %d\n", *y);
}

int*
f()
{
    // creates a local variables and returns its address
    int a = 5;
    return &a;
}

int*
g()
{
    // creates a local variables and returns its address
    int b = 10;
    return &b;
}