// Fig. 6.17: fig06_17.cpp
// Functions that take no arguments.
#include <iostream>
using std::cout;
using std::endl;

void function1(); // function that takes no arguments
void function2( void ); // function that takes no arguments

int main()
{
   function1(); // call function1 with no arguments
   function2(); // call function2 with no arguments
   return 0; // indicates successful termination
} // end main

// function1 uses an empty parameter list to specify that 
// the function receives no arguments 
void function1()
{
   cout << "function1 takes no arguments" << endl;
} // end function1

// function2 uses a void parameter list to specify that 
// the function receives no arguments 
void function2( void )
{
   cout << "function2 also takes no arguments" << endl;
} // end function2


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