/**
 *  This attempts to demonstrate the difference between arrays and pointers.  Compile as:
 *     g++  -ansi -pedantic -Wall int_array.cpp  -o test
 *  OR
 *     g++ -DBREAK -ansi -pedantic -Wall int_array.cpp  -o test
 */
#include <iostream>


int
main()
{
  int   first[]   = { 0 , 1 , 2 , 3 } ;
  int   second[]  = { 4 , 5 , 6 , 7 } ;
  int * test_ptr  = 0 ;

  std::cout << "The address of first is:\t"   << first  << '\n' ;
  std::cout << "The address of second is:\t"  << second << '\n' ;

  std::cout << "The address of test_ptr is:\t"  << test_ptr << '\n' ;

  test_ptr = first ;

  std::cout << "The address of test_ptr is:\t"  << test_ptr << '\n' ;

  test_ptr = second ;

  std::cout << "The address of test_ptr is:\t"  << test_ptr << '\n' ;

#ifdef BREAK
  // This breaks because while test_ptr is a pointer, and can point to ANY address, second and first
  // are actual ARRAYS, that is they are variables and the address of a variable cannot change
  second = first ;
#endif

} /* main() */

The address of first is:	[0, 1, 2, 3]
The address of second is:	[4, 5, 6, 7]
The address of test_ptr is:	0
The address of test_ptr is:	0xbf5e2878
The address of test_ptr is:	0xbf5e2868