SOURCE FILE: EX0307.CPP

//   
// Example 3.7. Example of a global variable and local       
// variable with the same name   
//    
   
#include <iostream.h>
   
int i;                  // global 
   
int main(void)   
{   
   void modify_i(void);   
   
   i = 1;               // global i is assigned 1 
      
   cout << "Before calling modify_i, i equals " << i << endl;   
   modify_i();   
   cout << "After  calling modify_i, i equals " << i << endl;   

   return 0;
}   
   
//   
// Function modifies local i   
// Pre:  none   
// Post: none   
//    
   
void modify_i(void)   
{   
   int i;               // local i 
   i = 3;               // local i is assigned 3 
}