1 2#include <stdlib.h> 3 4void ddd ( char* x ) 5{ 6 free(x); 7 free(x); 8} 9 10void ccc (char* x) 11{ 12 ddd(x); 13} 14 15void bbb (char* x) 16{ 17 ccc(x); 18} 19 20void aaa (char* x) 21{ 22 bbb(x); 23} 24 25int main ( void ) 26{ 27 char* x = malloc(10); 28 aaa(x); 29 return 0; 30} 31