/*  Scope.c  (c) Kari Laitinen

    http://www.naturalprogramming.com/

    2013-11-27 File created.
    2013-11-27 Last modification.
*/

#include  <stdio.h>

int  global_array[]  =  { 0x1111, 0x2222 } ;
int  variable_aa     =  0x3333 ;

void  function_aa()
{
   int  variable_aa  =  0x4444 ;

   do
   {
      int  variable_aa  =  0x5555 ;

      printf( "\n variable_aa (loop)   contains %X in address %X",
              variable_aa, &variable_aa ) ;
   }
      while ( 1 == 0 ) ;

   printf( "\n variable_aa (local)  contains %X in address %X",
           variable_aa, &variable_aa ) ;

   global_array[ 0 ]  =  0x8888 ;
}

void  function_bb()
{
   printf( "\n variable_aa (global) contains %X in address %X",
           variable_aa, &variable_aa ) ;

   function_aa() ;

   global_array[ 1 ]  =  0x9999 ;
}

int main()
{
   printf( "\n global_array contains %X and %X"
           " in addresses %X and %X \n",
           global_array[ 0 ], global_array[ 1 ],
           &global_array[ 0 ], &global_array[ 1 ] ) ;

   function_bb() ;

   printf( "\n\n global_array contains %X and %X"
           " in addresses %X and %X \n",
           global_array[ 0 ], global_array[ 1 ],
           &global_array[ 0 ], &global_array[ 1 ] ) ;
}