/*  Demoprogramm */                         Namen des HP  Namen des UP                                      
int a, b, c, d;  /* globale Var.*/           a  b  c  d    b  c  e
                                             |  |  |  | 
void ausblende(void)                         |  |  |  |
{                                            |  |  |  |
 int b, c, e;                                |  :  :  |    |  |  | 
 printf("Funktion-Anfang: %d %d %d %d %d\n", |  :  :  |    |  |  |
                            a, b, c, d, e);  |  :  :  |    |  |  |
 a = 10;                                     |  :  :  |    |  |  |
 b = 20;                                     |  :  :  |    |  |  |
 c = 30;                                     |  :  :  |    |  |  |
 d = 40;                                     |  :  :  |    |  |  |
 e = 50;                                     |  :  :  |    |  |  |
 printf("Funktion-Ende: %d %d %d %d %d\n",   |  :  :  |    |  |  |
                         a, b, c, d, e);     |  :  :  |    |  |  |
}                                            |  :  :  |    |  |  |
                                             |  |  |  |
void main(void)                              |  |  |  |
{                                            |  |  |  |
 a = 1;                                      |  |  |  |
 b = 2;                                      |  |  |  |
 c = 3;                                      |  |  |  |
 d = 4;                                      |  |  |  |
 printf("HP-Anfang: %d %d %d %d\n",          |  |  |  |
                     a, b, c, d);	     |  |  |  |
ausblende();                                 |  |  |  |
printf("HP-Ende: %d %d %d %d\n",             |  |  |  |
                    a, b, c, d);             |  |  |  |
}                                            |  |  |  |