/* This program demonstrates the scope of variables.
							Gang Qu
							Sept. 1, 2015
*/

#include <stdio.h>

int a=1;
int b = 12;
 
void showvalue(void);

int main(void)
{ int i;

  for (i = 10; i <= b; i++)
  { a++;
    printf("in main(), a = %d, \n", a);
    showvalue();
  }

  return 0;
}

void showvalue()
{ 
// try to add one of the commented statements and see what is the difference 
  // int a = 3;
  static int a = 3;
  static int i = 0;
  a = a + b;
  printf("Times function is called: %d, a = %d\n", ++i, a);
}