#include <stdio.h>

int main()
{
  // Part 1: Numeric type casts

  long long int lli = 987654321987654321LL;
  long double   ld  = 3.1e-200;
  float         f1   = 1.6;
  float         f2   = 1.4;

  printf("lli        is %lli\n",lli);
  printf("(int)lli   is %d (precision lost)\n", (int)lli);
  printf("(float)lli is %f (precision lost)\n", (float)lli);
  printf("ld         is %Lg\n",ld);
  printf("(float)ld  is %g (precision lost)\n",(float)ld);
  printf("f1         is %f\n",f1);
  printf("(int)f1    is %d (truncation)\n",(int)f1);
  printf("f2         is %f\n",f2);
  printf("(int)f2    is %d (truncation)\n",(int)f2);
  printf("-------------------\n\n");


  // Part 2: Pointer type casts

  printf("sizeof long long int is %d\n",sizeof(long long int));
  printf("sizeof float         is %d\n",sizeof(float));
  printf("sizeof long double   is %d\n",sizeof(long double));
  printf("sizeof double        is %d\n",sizeof(double));
  printf("sizeof int           is %d\n",sizeof(int));
  printf("sizeof void          is %d\n\n",sizeof(void));

  long double *pld = &ld;

  printf("pld            is %p\n",pld);
  printf("pld+1          is %p\n",pld+1);
  printf("(double*)pld   is %p\n",(double*)pld);
  printf("(double*)pld+1 is %p\n",(double*)pld + 1);
  printf("(int*)pld+1    is %p\n",(int*)pld + 1);
  printf("(void*)pld+1   is %p\n",(void*)pld + 1);
  printf("-------------------\n\n");


  // Part 3: Struct type casts
  typedef struct _Foo {
    int i;
  } Foo;

  typedef struct _Bar {
    int j;
  } Bar;

  Foo foo = { 5 };
  printf("foo.i is %d\n",foo.i);
  // COMPILE TIME ERROR
  //printf("((Bar)foo).i is %d\n",((Bar)foo).i);

  return 0;
}