trax

#include <stdio.h>#include <stdlib.h>typedef struct {	int a;	int b;}subTwo;typedef struct{	subTwo *sub;}subOne;typedef struct{	subOne *sub;}mainStruct;void createStruct(mainStruct **s0){	printf("sizeof mainStruct %d\n",sizeof(mainStruct));	(*s0) = (mainStruct *)malloc(sizeof(mainStruct));	(*s0)->sub = (subOne *)malloc(sizeof(subOne));	(*s0)->sub->sub = (subTwo *)malloc(sizeof(subTwo));	printf("sizeof subTwo %d\n",sizeof(subTwo));}int main(){	mainStruct *s0;	createStruct(&s0);	s0->sub->sub->a = 42;	printf("a = %d\n", s0->sub->sub->a);		return 0;}