initialize an array

//-std=c99 -Wall -Wextra -Wpedantic -Wshadow

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

typedef struct Testas {
   int i;
   char c;
} Testas;

int main (int argc, char **argv)
{

unsigned int uiTmp = 3;

//={0}; error: variable-sized object may not be initialized
Testas tst[uiTmp];

//memset( tst, 0, sizeof(Testas)*uiTmp);
memset( tst, 0, sizeof(tst));

printf("size of Testas: %zu\n",sizeof(Testas));
printf("size of tst: %zu\n",sizeof(tst));

for(unsigned int i = 0; i < uiTmp; ++i)
{
   printf("%d %d\n", tst[i].i, tst[i].c);
}

return 0;
}

/*
size of Testas: 8
size of tst: 24
0 0
0 0
0 0
*/