#include "EXTERN.h" 
#include "perl.h" 
#include "XSUB.h" 
 
 
int add_one(int i) { 
    return i + 1; 
} 
 
int add_two(int i) { 
   return i + 1; 
} 
 
MODULE = Test           PACKAGE = Test           
 
int 
add_interface(i) 
    int i 
    INTERFACE: 
        add_one 
        add_two