extern int printf(const char*, ...); struct fred; void fred$(struct fred* this){    printf("~fred()\n");} struct __attribute__((__cleanup__(fred$))) fred{   int boris;   int natasha;}; int main(){    struct fred  __attribute__((__cleanup__(fred$))) bloggs;    bloggs.boris = 12;   bloggs.natasha = 34;    printf("%d\n", bloggs.boris);   printf("%d\n", bloggs.natasha);    struct fred jones[2];   jones[0].boris = 12;   jones[0].natasha = 34;   jones[1].boris = 56;   jones[1].natasha = 78;    printf("%d\n", jones[0].boris);   printf("%d\n", jones[0].natasha);   printf("%d\n", jones[1].boris);   printf("%d\n", jones[1].natasha);    return 0;}