1 #include <stdio.h> 2 3 int foo1; 4 int foo2; 5 6 extern void xxx1 (void); 7 extern void xxx2 (void); 8 9 void 10 bar (int x) 11 { 12 if (foo1 == 1) 13 printf ("bar OK1\n"); 14 else if (foo1 == 0) 15 printf ("bar OK2\n"); 16 if (foo2 == 1) 17 printf ("bar OK3\n"); 18 else if (foo2 == 0) 19 printf ("bar OK4\n"); 20 foo1 = -1; 21 foo2 = -1; 22 xxx1 (); 23 xxx2 (); 24 } 25