/* scope.c				*/
/* different scopes of the variables	*/
/* Author: Weiwei Chen			*/
/* Date: Oct. 31. 2010			*/

/*preprocessor directives*/
#include <stdio.h>

/*global variable definition*/
int i = 0;

/*function declaration*/
void print_i(void);

/*function defintion*/
void print_i(void)
{
	printf("in print_i:  i = %d \n", i);
}

/*main function*/
int main(void)
{
	/*function local variables*/
	int i = 1;


	printf("1. i = %d \n", i);
	
	{
		int i = 2;	/*variable within the scope of {}*/
		printf("2. i = %d \n", i);
	}

	printf("3. i = %d \n", i);

	print_i();

	return 0;
}