/* Fig. 5.12: fig05_12.c
   A scoping example */
#include <stdio.h>

void a( void );   /* function prototype */
void b( void );   /* function prototype */
void c( void );   /* function prototype */

int x = 1;        /* global variable */

int main()
{
   int x = 5;   /* local variable to main */

   printf("local x in outer scope of main is %d\n", x );

   {            /* start new scope */
      int x = 7;

      printf( "local x in inner scope of main is %d\n", x );
   }            /* end new scope */

   printf( "local x in outer scope of main is %d\n", x );

   a();         /* a has automatic local x */
   b();         /* b has static local x */
   c();         /* c uses global x */
   a();         /* a reinitializes automatic local x */
   b();         /* static local x retains its previous value */
   c();         /* global x also retains its value */

   printf( "local x in main is %d\n", x );
   return 0;
}

void a( void )
{
   int x = 25;  /* initialized each time a is called */

   printf( "\nlocal x in a is %d after entering a\n", x );
   ++x;
   printf( "local x in a is %d before exiting a\n", x );
}

void b( void )
{
    static int x = 50;  /* static initialization only */
                        /* first time b is called */
    printf( "\nlocal static x is %d on entering b\n", x );
    ++x;
    printf( "local static x is %d on exiting b\n", x );
}

void c( void )
{
   printf( "\nglobal x is %d on entering c\n", x );
   x *= 10;
   printf( "global x is %d on exiting c\n", x );
}



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 * (C) Copyright 2000 by Deitel & Associates, Inc. and Prentice Hall.     *
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