#include <stdio.h>

    /* ------------------------
       Structure definition
       ------------------------ */
    struct BankAccount
    {
       int    accNum;
       double balance;
    };

    struct BankAccount a;

    int main(int argc, char *argv[])
    {
       struct BankAccount b;

       a.accNum  = 123;
       a.balance = 1000.0;

       b.accNum  = 444;
       b.balance = 3000.0;

       printf("a = (%d, %f)\n", a.accNum, a.balance);   
       printf("b = (%d, %f)\n\n", b.accNum, b.balance);

       /* ========================
          Copy struct
          ======================== */
       b = a;

       printf("a = (%d, %f)\n", a.accNum, a.balance);   
       printf("b = (%d, %f)\n\n", b.accNum, b.balance);

       /* ============================================
          Proof that a and b are different objects
          ============================================ */
       a.balance = 999999.0;

       printf("a = (%d, %f)\n", a.accNum, a.balance);   
       printf("b = (%d, %f)\n\n", b.accNum, b.balance);
    }