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#include <stdlib.h>
#include <string.h>
#include <stdio.h>


typedef struct TestStruct {
    char * data;
    unsigned long long size;
}TestStruct;

void func2 (TestStruct * tmp) {
tmp->size = 1;
printf("%i\r\n",tmp->size);
tmp->data = NULL;
tmp->data = realloc(tmp->data, 20);
if (tmp->data != NULL) {
memcpy(tmp->data,"12334",6);
strcat(tmp->data,"asadsd");
printf("%i %s\r\n",tmp->size,tmp->data);
}
}

void func1(TestStruct ** tmp) {
*tmp = malloc(sizeof(TestStruct) * 2);
func2(&(*tmp)[0]);
}
int main () {
TestStruct * tmp;
func1(&tmp);
printf("%i %s\r\n",tmp[0].size,tmp[0].data);
getchar();
return 0;
}