File: 12_1.c

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#include <stdio.h>
main()
{
    int   thing_var;  /* define a variable for thing */
    int  *thing_ptr;  /* define a pointer to thing */

    thing_var = 2;      /* assigning a value to thing */
    (void)printf("Thing %d\n", thing_var);

    thing_ptr = &thing_var; /* make the pointer point to thing */
    *thing_ptr = 3;     /* thing_ptr points to thing_var so */
                        /* thing_var changes to 3 */
    (void)printf("Thing %d\n", thing_var);

    /* another way of doing the printf */
    (void)printf("Thing %d\n", *thing_ptr);
    return (0);
}