/* This is the C version of src/id3.cpp. It won't compile, because
   C doesn't create the "intdouble" type.  You need to use a typedef. */

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

struct intdouble {
  int i;
  double d;
};

int main()
{
  intdouble id1, id2;       // This line won't compile.

  id1.i = 5;
  id1.d = 3.14;

  id2 = id1; 
  id2.i += 5;
  id2.d += 5;

  printf("1: %d %.2lf\n", id1.i, id1.d);
  printf("2: %d %.2lf\n", id2.i, id2.d);
  exit(0);
}