1 extern int a(void); 2 extern int b(void); 3 extern int c(void); 4 5 static int or(void) 6 { 7 return a() || b() || c(); 8 } 9 10 static int and(void) 11 { 12 return a() && b() && c(); 13 } 14 /* 15 * check-name: Logical and/or 16 */ 17 18