#include <stdio.h>

/* ------------------------------------------------------------------------
   Structure definition (included here for brevity)
   (I should have use a header file to store the struct definition....)
   ------------------------------------------------------------------------ */
struct BankAccount
{
   int    accNum;
   double balance;
};

int main(int argc, char *argv[])
{
   printf("* sizeof(int) = %lu\n", sizeof(int) );
   printf("* sizeof(float) = %lu\n", sizeof(float) );
   printf("* sizeof(double) = %lu\n\n", sizeof(double) );

   printf("* sizeof(struct BankAccount) = %lu\n\n", 
			     sizeof(struct BankAccount) );

   struct BankAccount a;

   printf("address of a.accNum  = %lu\n", &(a.accNum) );  // ignore warning..
   printf("address of a.balance = %lu\n\n", &(a.balance) ); // ignore warning..

   printf("** Why is there a GAP between accNum and balance ?\n");
   printf("** Try using:  float balance --> no gap, why ?\n\n");
}