2.2. void examples

void example, with global counter:

  int c = 0;

  void prompt( void)
  {
    ++c;  if( c > 100) return;

    printf( "Enter value #%i: ", c);
  }

void example, with static counter:

  void prompt( void)
  {
    static int c = 0;

    ++c;  if( c > 100) return;

    printf( "Enter value #%i: ", c);
  }

storage class: automatic vs. static

scope: local vs. global