1 #define deref(X) (*X) 2 helper(char * out,int doDereference)3 char helper( 4 char *out, 5 int doDereference) { 6 if (doDereference) { 7 return deref(out); 8 } else { 9 return 'x'; 10 } 11 return 'c'; 12 } 13