1 #undef DEF 2 #include "header.h" 3 foo()4 static int foo() { 5 return 0; 6 } 7 main()8 int main() { 9 f1(); 10 11 long *x; 12 f2(&x); 13 14 double *y; 15 f2(&y); 16 17 f3(); 18 19 return foo(); 20 } 21