#include <stdio.h>
#include <stdlib.h>
int main(int argc, char ** argv)
{
char foo[200];
char bar[atoi(argv[1])];
char *wibble = foo;
printf("%p, %p, %lu, %p, %p, %lu, %p, %p, %lu\n",
foo, &foo, sizeof(foo), bar, &bar, sizeof(bar), wibble, &wibble, sizeof(wibble));
return 0;
}